法人別リリース

ROHM Adds New Lineup of 17 High-performance Op Amps Enhancing Design Flexibility

ROHM — Tue, 31 Mar 2026 15:00:00 +0900

KYOTO, Japan, Mar. 31, 2026 /Kyodo JBN/ --
ROHM Co., Ltd.
ROHM Co., Ltd. has added the new CMOS Operational Amplifier (op amp) series "TLRx728" and "BD728x" to its lineup. These are suitable for a wide range of applications including automotive, industrial, and consumer systems. A broad lineup also makes product selection easier.

Figures: Product features https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202603185852/_prw_PI1fl_12w7lWE6.jpg

In recent years, demand for high-accuracy op amps has been rapidly increasing as automotive and industrial systems become more sophisticated, demanding faster speed, better precision, and higher efficiency. In applications requiring amplification of sensor outputs, minimizing signal error and delay is essential. To meet these requirements, a well-balanced set of key characteristics is needed, including input offset voltage, noise, and slew rate.

These new products are high-performance op amps that offer a low input offset voltage, low noise, and high slew rate. TLRx728 features an input offset voltage of 150 microvolts (typ.), while BD728x offers 1.6 millivolts (typ.). Both series have a noise voltage density of 12 nanovolts per square root hertz at 1kHz and a slew rate of 10 volts per microsecond. They are therefore suitable for a wide range of precision applications, including sensor signal processing, current detection circuits, motor driver control, and power supply monitoring systems. Both series are designed to balance versatility and high performance rather than being limited to specific applications.

Rail-to-rail input/output capability allows maximum utilization of the power supply voltage range, ensuring a wide dynamic range. Furthermore, in addition to 1 channel, 2 channels, and 4 channels configurations, a diverse range of packages is available, enabling optimal product selection based on application and board size.

The new products are being released simultaneously except for certain part numbers (Sample Price: 1-channel: $2.0, 2-channels: $2.8, 4-channels: $4.0 per unit, excluding tax). For key product characteristics, please refer to the lineup table. They are also available for purchase online through online distributors such as DigiKey, Mouser and Farnell.

Figures: key product lineup table
https://kyodonewsprwire.jp/attach/202603185852-O1-M2KnjTXU.pdf

Application Examples
Automotive equipment, industrial equipment, and consumer electronics.
Example use case: Sensor signal processing, current detection circuits, motor driver control, and power supply monitoring systems.

News release: https://www.rohm.com/news-detail?news-title=2026-03-31_news_opamp&defaultGroupId=false

About ROHM: https://kyodonewsprwire.jp/attach/202603185852-O2-p21y47fb.pdf

Logo: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202603185852/_prw_PI2fl_Qro6Es5C.jpg

Official website: https://www.rohm.com/

超小型ワイヤレス給電チップセットを開発

ローム — Thu, 12 Mar 2026 15:00:00 +0900

2026.3.12
ローム株式会社マーケティング・コミュニケーション部プロモーション課

＜要旨＞
ローム株式会社（本社：京都市）は、スマートリングやスマートバンドなどの小型ウェアラブル機器やスマートペンなどの小型周辺デバイス向けに、近距離非接触通信を行う無線技術（NFC）に対応したワイヤレス給電ICチップセット「ML7670 （受電）」「ML7671 （送電）」を開発しました。
新チップセットは、好評をいただいている最大1W給電が可能な「ML7660 （受電）」「ML7661 （送電）」の派生タイプです。給電量を最大250mWに抑えるとともに、充電ICへの電力供給に必要なスイッチングMOSFETなどの外部部品を内蔵しました。これらにより、小型ウェアラブル機器、特にスマートリングが求める電力クラスに対して、実装面積と給電効率の両面で最適化された設計となっています。
受電IC「ML7670」は、2.28×2.56×0.48mmという業界最小クラスのコンパクトサイズを維持しつつ、給電量が250mWの低出力領域での動作で最大給電効率45%を実現します。新チップセットでは、コイル整合、整流回路、スイッチングデバイスの損失低減といった要素の最適化により、同等クラス製品の効率水準を上回る性能を実現している点が大きな特長です。
さらに、ワイヤレス給電に必要なファームウェアをIC内部に実装しているため、ホストMCUが不要となり、機器開発の省スペース化と開発工数の削減に大きく貢献します。
また、NFC Forum（*1）規格（WLC 2.0）に準拠しているため、既存デバイスとの互換性を保った給電が可能となり、拡大するNFCワイヤレス給電システムにおいて中心的なデバイスとして機能します。
新チップセットはすでに量産中でROHM Online Storeから順次販売を開始しており、日本発の睡眠管理用スマートリング「SOXAI RING」を自社で開発・販売する株式会社SOXAIが2025年12月10日に販売を開始した最新モデル「SOXAI RING 2」に採用されています。また、簡単に製品を評価できるよう、評価ボードやリファレンスデザインも準備していますので、担当営業、もしくはロームWebサイトの「お問い合わせ」からお問い合わせください。
ロームは今後も、ウェアラブル機器に求められる小型・省電力技術を活用したデバイス開発を推進し、ユーザーの利便性向上とウェアラブル市場の発展に貢献していきます。

＜背景＞
近年、ヘルスケア・フィットネス用途を中心にスマートリング市場が急速に拡大しています。一方で、指に装着するリング型の極小筐体では有線給電が困難であるうえ、一般的なワイヤレス給電のQi規格（*2）はコイルサイズの制約などから搭載が難しくなっています。そのため、小型デバイスで確実に充電できる近接給電方式が求められてきました。こうしたなか、アンテナの小型化を可能とする高周波数帯13.56MHzを採用したNFC給電が注目されており、次世代ウェアラブルへの採用が加速しています。ロームは1W給電に対応したML7660 / ML7661を商品化していますが、今回、さらに小型機器向けに最適化した新チップセットML7670 / ML7671を開発し、ウェアラブル端末の進化と利便性向上に貢献します。

＜製品仕様＞

＜採用事例＞　SOXAI RING 2 採用事例ページ

「SOXAI RING」は睡眠データを正確に取得・分析可能な、唯一の国産の睡眠管理用スマートリングです。光学バイタルセンサー、温度センサー、加速度センサー、Bluetooth® Low Energy通信機能、NFCワイヤレス充電機能など、最先端の技術が搭載されています。新モデル「SOXAI RING 2」では、独自開発した光電容積脈波(PPG)センサー「Deep Sensing™」（ディープセンシング）を新たに搭載したことにより、計測の精度が大幅に改善し、より深いレベルで身体状態の変化を可視化できるようになりました。
Bluetooth®は、米国Bluetooth SIG, Inc.の登録商標です。
Deep Sensing™は、株式会社SOXAIの商標または登録商標です。

＜アプリケーション例＞
スマートリング、スマートバンド、スマートペン、ワイヤレスイヤホン
その他（ウェアラブルなどの小型デバイス機器）

＜用語説明＞
（*1）NFC Forum
非接触通信の国際標準化団体。高周波数帯の13.56MHzを採用する近距離無線通信規格「Near Field Communication（NFC）」を用いた通信・給電方式を規格化している。

（*2）Qi（チー）規格
ワイヤレスパワーコンソーシアムが策定したワイヤレス給電の国際標準規格。スマートフォンのワイヤレス給電で採用されている。

ROHM's New SiC Power Modules Now Available for Online Purchase

ROHM — Thu, 12 Mar 2026 15:00:00 +0900

KYOTO, Japan, Mar. 12, 2026 /Kyodo JBN/ --
ROHM Co., Ltd.
ROHM Co., Ltd. has begun online sales of new SiC molded modules: TRCDRIVE pack (TM), HSDIP20 and DOT-247. Amid growing concerns over tightening global power supply and need for energy conservation, these products promote the adoption of high-efficiency power conversion using SiC in a wider range of applications. These products are available from distributors such as DigiKey.
Details: https://www.digikey.com/en/product-highlight/r/rohm-semi/trcdrive-pack-in-dot247-hsdip20

TRCDRIVE pack (TM)
The TRCDRIVE pack (TM) is a 2-in-1 SiC molded module compatible with traction inverters for xEV (electric vehicles) up to 300kW. ROHM's 4th Generation SiC MOSFETs with low ON resistance are built in -- resulting in power density 1.5 times higher than general SiC molded modules, while contributing to the miniaturization of inverters for xEVs. Furthermore, its unique terminal layout allows connection by pushing the gate driver board from the top, reducing installation time.

About TRCDRIVE pack (TM): https://kyodonewsprwire.jp/attach/202603055107-O1-NTn4X99y.pdf

HSDIP20
The HSDIP20 is a SiC module in 4-in-1 and 6-in-1 configurations, ideal for xEV onboard chargers, EV charging stations, server power supplies and AC servos. The lineup includes six 750V and seven 1200V models. All basic circuits required for power conversion in various high-power applications are integrated into a compact module package, reducing the design workload and enabling circuit miniaturization.

About HSDIP20: https://kyodonewsprwire.jp/attach/202603055107-O2-9TKRZTQS.pdf

DOT-247
The DOT-247 is a 2-in-1 SiC module ideal for industrial applications such as PV inverters and UPS systems. The module retains the versatility of the widely adopted "TO-247" package while achieving high power density. It supports various circuit configurations through two topologies: half-bridge and common-source. By adopting it in power conversion circuits that incorporate multiple discrete components, it reduces the number of components and mounting area, supporting miniaturization and lower design effort.

About DOT-247: https://kyodonewsprwire.jp/attach/202603055107-O3-oiQk3Y3J.pdf

News release: https://www.rohm.com/news-detail?news-title=2026-03-12_news_sic-power-module&defaultGroupId=false

About EcoSiC (TM) brand: https://kyodonewsprwire.jp/attach/202603055107-O4-03mc4362.pdf

About ROHM: https://kyodonewsprwire.jp/attach/202603055107-O5-6EX30Js5.pdf

Official website: https://www.rohm.com/

極小コンデンサでも安定動作！ 500mA対応のLDOレギュレータで大電流設計の自由度を拡大

ローム — Wed, 28 Jan 2026 19:26:00 +0900

2026年1月27日
ローム株式会社
ローム株式会社（本社：京都市）は、車載機器、産業機器、通信インフラなどに用いられる12V/24V系プライマリ(※１)電源用途向けに、独自の超安定制御技術「Nano Cap™（ナノキャップ）」を搭載した出力電流500mAのLDOレギュレータ(※2)IC「BD9xxN5 シリーズ」全18製品を開発しました。

本製品は、好評を得ている「BD9xxN1 シリーズ」（出力電流150mA）の電流拡張モデルであり、出力電流を従来の3倍以上となる500mAへと拡大し、より大電流を必要とするアプリケーションへの適用範囲を広げました。また、「Nano Cap™」技術の採用により、わずか470nF（Typ.）の出力コンデンサでも出力電圧変動を約250mV（負荷電流変動1mA⇔500mA/1µs 時）に抑える安定動作を実証しています。一般的な数µFの小型MLCC（多層セラミックコンデンサ）や大容量の電解コンデンサに加え、安定性の確保が難しかった1µF以下の容量を持つ、0603Mサイズ（0.6×0.3mm）などの極小MLCCにも対応可能です。これにより、回路や基板の小型化はもちろん、部品選定の自由度向上にも貢献します。
本製品は2025年10月より月産30万個体制で量産を開始しています（サンプル価格300円/個：税抜）。インターネット販売にも対応しており、チップワンストップやコアスタッフオンライン、DigiKey、 Mouserなどからご購入いただけます。また、検証用シミュレーションモデルでは、高精度SPICEモデル「ROHM Real Model(※3)」を完備しており、ローム公式Webから入手することができます。

SPICEモデル： BD900N5xxx-C　BD933N5xxxx-C　BD950N5xxxx-C
ロームは今後も、Nano Cap™技術搭載LDOシリーズのさらなる拡充を通じて、電子機器の高性能化・小型化・高信頼化に貢献してまいります。

＜開発の背景＞
近年、電子機器の小型・高密度化が進んでおり、電源回路には、省スペース化と高い設計自由度を実現するため、小容量コンデンサでも安定動作可能な電源ICが求められています。しかし、1µF以下の出力コンデンサで安定動作を実現することは技術的に困難とされてきました。
この課題に対し、ロームは2022年に独自の超安定制御技術「Nano Cap™」を搭載したLDOレギュレータ「BD9xxN1シリーズ（出力電流150mA）」を開発。わずか100nFの出力コンデンサで安定動作を可能にする性能が高く評価され、多くの採用実績を獲得しています。今回新たに開発した「BD9xxN5シリーズ」は、より大きな電流が求められるアプリケーションに対応しており、電源設計における出力コンデンサに関する課題の解決をさらに支援します。

＜アプリケーション例＞
車載機器：
燃料噴射装置（FI）やタイヤ空気圧監視システム（TPMS）などのパワートレイン系電源
ボディコントロールモジュール（BCM）などのボディ系電源
クラスタやヘッドアップディスプレイ（HUD）などのインフォテインメント系電源　など
産業機器：
プログラマブルロジックコントローラ（PLC）や遠隔端末装置（RTU）、産業ゲートウェイなどコントローラ用電源
温度や圧力、流量などのアナログ負荷やセンサ用の高精度LDO
ビルオートメーションや防災、入退室盤などの監視制御盤用電源
ヒューマンマシンインターフェース（HMI）やパネル機器のスタンバイ電源など　
民生機器：
冷蔵庫や食洗機、エアコンなどのコントロール制御基板用電源
恒温器（サーモスタット）やドアベルなど住宅設備用電源
ホームセキュリティやネットワーク機器などの常時給電用電源など

＜Nano Cap™（ナノキャップ）について＞

Nano Cap™は、ロームの垂直統合型生産体制において、「回路設計」「レイアウト」「プロセス」、3つの先端アナログ技術を結集することで実現する超安定制御技術を指します。安定制御により、アナログ回路のコンデンサに関する安定動作課題を払拭することで、自動車や産業機器、民生機器などを問わず、幅広いアプリケーションの設計工数削減に貢献します。
特設ページ：省エネ・小型化を極めるロームの革新的な「Nano」電源技術
ロームのものづくり：「Nano電源技術」
動画：超安定制御技術 Nano Cap™
Nano Cap™は、ローム株式会社の商標または登録商標です。

＜用語説明＞
※1）プライマリ
電源ICにおいては、バッテリーなどの電力源から見て1段目の変換を担当するものをプライマリと言う。なお、その後の2段目の変換を担当するものをセカンダリと呼ぶ。

※2) LDOレギュレータ（Low Drop Out レギュレータ / 低飽和レギュレータ）
電源ICの一種で直流（DC）から直流へ電圧を変換する。入力と出力の電圧差が小さく、リニアレギュレータ（入出力電圧が線形動作する）と言われる区分に該当する。DC-DCコンバータIC（スイッチングレギュレータ）と比較して、回路構成が簡単でノイズが少ないなどの特長を持つ。

※3) ROHM Real Model
ローム独自のモデルベース技術を駆使して、IC実物の電気的特性と温度特性を忠実に再現することで、IC実物とシミュレーション値の完全一致も可能にする高精度SPICEモデル。確実な検証により、実機試作後の手戻りを防止できるなど、効率的なアプリケーション開発に貢献する。

ROHM’s New LDO Regulators with 500mA Output Current Achieve Stable Operation Even...

ROHM — Tue, 27 Jan 2026 16:00:00 +0900

KYOTO, Japan, Jan. 27, 2026 /Kyodo JBN/ --
ROHM Co., Ltd.
ROHM’s New LDO Regulators with 500mA Output Current Achieve Stable Operation Even with Ultra-small Capacitors

ROHM Co., Ltd. has developed the "BD9xxN5 Series" of LDO regulator ICs with 500mA output current, featuring its proprietary ultra-stable control technology "Nano Cap (TM)." This series is designed for 12V/24V primary power supply applications used in automotive equipment, industrial equipment, and communication infrastructure.

Figures: Product features
https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202601202706/_prw_PI1fl_0F05utFG.jpg

In recent years, electronic devices have demanded higher density in smaller form factors at the same time. To meet this demand and achieve space savings and design flexibility, power supply ICs must be capable of stable operation even with small-capacity capacitors.

To address this challenge, ROHM developed the "BD9xxN1 Series" LDO regulator (150mA output current) in 2022, incorporating its proprietary ultra-stable control technology, "Nano Cap (TM)." The newly developed BD9xxN5 Series builds on the success of the BD9xxN1 Series by increasing the output current to 500mA -- more than three times higher than before -- significantly broadening its suitability for applications requiring higher power.

In addition, very low output voltage ripple of approximately 250mV (with load current variation of 1mA to 500mA within 1 microsecond) is achieved with a small output capacitance of just 470nF (typical). This contributes to space saving as well as greater flexibility in component selection.

"New" BD9xxN5 Series: https://www.rohm.com/products/power-management/linear-regulators?page=1&SearchWord=n5#parametricSearch

BD9xxN1 Series: https://www.rohm.com/products/power-management/linear-regulators?SearchWord=n1&OutputCurrent_num=(0.15,0.15)#parametricSearch

Figures: Key product characteristics and application examples
https://kyodonewsprwire.jp/attach/202601202706-O1-06osc1Cn.pdf

Furthermore, high-precision SPICE models, including "ROHM Real Model," are provided for accurate simulation and can be downloaded from ROHM’s official website.

Figures: What is Nano Cap (TM) technology?
https://kyodonewsprwire.jp/attach/202601202706-O2-rEwFZUbE.pdf

Release: https://www.rohm.com/news-detail?news-title=2026-01-27_news_ldo&defaultGroupId=false

About ROHM: https://kyodonewsprwire.jp/attach/202601202706-O3-sUd9PthJ.pdf

Logo: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202601202706/_prw_PI2fl_0cpVs532.jpg

Official website: https://www.rohm.com/

ROHM Adds Wide SOA MOSFETs for AI Servers with Compact 5 x 6mm Package

ROHM — Tue, 20 Jan 2026 15:00:00 +0900

KYOTO, Japan, Jan. 20, 2026 /Kyodo JBN/ --
ROHM Co., Ltd.
ROHM Co., Ltd. has developed the 100V power MOSFET--RS7P200BM--achieving industry-leading safe operating area (SOA) performance in a 5060-size (5.0mm x 6.0mm) package. This product is ideal for hot-swap circuits in AI servers employing 48V power supplies as well as for industrial equipment power supplies requiring battery protection.

Figures: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202601142419/_prw_PI1fl_W374YeRf.jpg

The rapid evolution and widespread adoption of AI technology have increased demand for stable operation and improved power efficiency in servers equipped with generative AI and high-performance GPUs. In particular, hot-swap circuits require power MOSFETs with wide SOA tolerance to safely handle inrush current and overload conditions, ensuring stable operation. Furthermore, within data centers and AI servers, the transition toward 48V power supplies, which offer superior power conversion efficiency, is progressing against the backdrop of energy conservation. This necessitates the construction of high-voltage, high-efficiency power supply circuits capable of meeting these needs.

Therefore, ROHM has strengthened its lineup of 100V power MOSFETs, ideal for hot-swap circuits in AI servers, to meet market needs. The new RS7P200BM adopts a compact DFN5060-8S (5060-size) package, enabling higher-density mounting compared to the RY7P250BM in a DFN8080-8S package, which ROHM released in May 2025.

The new product achieves low on-resistance (RDS(on)) of 4.0milliohm (conditions: VGS=10V, ID=50A, Ta=25C) while maintaining wide SOA of 7.5A at a pulse width of 10ms and 25A at 1ms under operating conditions of VDS=48V. This balance of low on-resistance and wide SOA, typically a trade-off relationship, helps suppress heat generation during operation, thereby improving server power supply efficiency, reducing cooling load, and lowering electricity costs.

ROHM will continue to strengthen its lineup of power devices for 48V power supply systems, contributing to reducing power loss and cooling loads in data centers, as well as enhancing the high reliability and energy efficiency of server systems.

Release: https://www.rohm.com/news-detail?news-title=2025-11-25_news_mosfet&defaultGroupId=false

Application examples
-48V system AI servers and data center power hot-swap circuits
-48V system industrial equipment power supplies (forklifts, power tools, robots, fan motors, etc.)
-Battery-powered industrial equipment such as automated guided vehicles (AGVs)
-UPS, emergency power systems (battery backup units)

About EcoMOS (TM) brand: https://kyodonewsprwire.jp/attach/202601142419-O1-0zoLwEz6.pdf

About ROHM: https://kyodonewsprwire.jp/attach/202601142419-O2-49g606Xh.pdf

Logo: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202601142419/_prw_PI2fl_U7e2BR8b.jpg

Official website: https://www.rohm.com/

ROHM Develops Flexible Brushed DC Motor Driver ICs for Wide Range Applications

ROHM — Wed, 07 Jan 2026 16:00:00 +0900

KYOTO, Japan, Jan. 7, 2026 /Kyodo JBN/ --
ROHM Co., Ltd.
ROHM Co., Ltd. has developed two new motor driver ICs for brushed DC motors, BD60210FV (20V, 2ch) and BD64950EFJ (40V, 1ch), which are intended for use in home and office appliances such as refrigerators, air conditioners, printers, and robotic vacuum cleaners.

Figures: Product features: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202512100752/_prw_PI1fl_0QTDeUrD.jpg

In recent years, the electrification of consumer and industrial equipment -- especially white goods -- has accelerated, increasing demand for energy-efficient brushed DC motors. At the same time, motor drivers are expected to support multiple applications and use cases while reducing external component count and size.

To address these needs, these new products adopt highly versatile packages, making them ideal not only for new platform designs but also for redesigns and derivative products. Additionally, they achieve ultra-low standby current (Typ: 0.0 microampere, Max: 1.0 microampere), significantly contributing to power savings during standby operation.

The BD60210FV can function as a dual H-bridge (2ch) motor driver with direct PWM control, capable of driving two DC brush motors, a bipolar stepper motor driver, or solenoid driver. Its H-bridge circuit configuration eliminates the need for a boost circuit, minimizing external components and contributing to space-saving and simplified design.

The BD64950EFJ features a single H-bridge (1ch) that supports both direct PWM control and constant current PWM control. Its low on-resistance design reduces heat generation, enabling efficient motor drive.

Both products are now in mass production. Online sales have also started, and they can be purchased from online distributors such as DigiKey, MOUSER and Farnell. Evaluation boards are also available to support application development and design.

Figures: Key product characteristics: https://kyodonewsprwire.jp/attach/202512100752-O1-UbI5pCl4.pdf

Release: https://www.rohm.com/news-detail?news-title=2025-12-17_news_motor&defaultGroupId=false

Application examples:
--Consumer equipment: Refrigerators (ice maker rotation, fan valve control), air conditioners (louver control), printers (carriage movement), robotic vacuum cleaners (brush rotation), water heaters and rice cookers (valve control), humidifiers (fan control) etc.
--Industrial equipment: Automatic doors and shutters (operation control), small conveyors (transport control), power tools (rotation control), other small motor control applications, etc.

About ROHM: https://kyodonewsprwire.jp/attach/202512100752-O2-jtFGH802.pdf

Logo: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202512100752/_prw_PI2fl_eye2CRM2.jpg

Official website: https://www.rohm.com/

ROHM Develops Breakthrough Schottky Barrier Diode Combining Low VF and Low IR ...

ROHM — Thu, 23 Oct 2025 16:00:00 +0900

KYOTO, Japan, Oct. 23, 2025 /Kyodo JBN/ --
ROHM Co., Ltd.
ROHM Develops Breakthrough Schottky Barrier Diode Combining Low VF and Low IR for Advanced Image Sensor Protection

ROHM Co., Ltd. has developed an innovative Schottky barrier diode (SBD) that overcomes the traditional VF/IR trade-off. This way, it delivers high reliability protection for a wide range of high-resolution image sensor applications, including ADAS cameras.

Figures: Product features: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202510147042/_prw_PI1fl_7Y2b31Lo.jpg

Modern ADAS cameras and similar systems require higher pixel counts to meet demand for greater precision. This has created a growing concern -- the risk of damage caused by photovoltaic voltage generated under light exposure during power OFF. While low-VF SBDs are effective countermeasures, low IR is also essential during operation to prevent thermal runaway. However, simultaneously achieving both low VF and low IR has been a longstanding technical challenge.

The RBE01VYM6AFH represents a novel concept: leveraging the low-VF characteristics of rectification SBDs for protection purposes. By adopting a proprietary architecture, ROHM has achieved low IR that is typically difficult to realize with low VF designs. As a result, even under harsh environmental conditions, the device meets market requirements by delivering VF of less than 300mV (at IF=7.5mA even at Ta=-40C), and IR of less than 20mA (at VR=3V even at Ta=125C). These exceptional characteristics not only prevent circuit damage caused by high photovoltaic voltage generated when powered OFF, but also significantly reduce the risk of thermal runaway and malfunction during operation.

Figures: Performance comparison: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202510147042/_prw_PI2fl_48d08411.jpg

The diode is housed in a compact flat-lead SOD-323HE package (2.5 mm x 1.4 mm / 0.098 inch x 0.055 inch) that offers both space efficiency and excellent mountability. The RBE01VYM6AFH is also AEC-Q101 qualified, ensuring suitability as a protection device for next-generation automotive electronics requiring high reliability and long-term stability.

Figures: Key product characteristics: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202510147042/_prw_PI3fl_MO96x6p6.jpg

Release: https://www.rohm.com/news-detail?news-title=2025-10-23_news_sbd&defaultGroupId=false

RBE01VYM6AFH: https://www.rohm.com/products/diodes/schottky-barrier-diodes/ultra-low-vf/rbe01vym6afh-product

Application examples:
Image sensor-equipped sets such as ADAS cameras, smart intercoms, security cameras, home IoT devices, etc.

Online sales information:
Sales launch: Now
Sample price: $1.0/unit (excluding tax)
Online distributors: DigiKey, Mouser, Farnell, etc.

About ROHM: https://kyodonewsprwire.jp/attach/202510147042-O1-MQWVeZRx.pdf

Logo: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202510147042/_prw_PI4fl_1O1E0ge1.jpg

Official website: https://www.rohm.com/

ROHM Has Developed New Smart Switches Optimized for Zonal Controllers

ROHM — Wed, 01 Oct 2025 15:00:00 +0900

KYOTO, Japan, Oct. 1, 2025 /Kyodo JBN/ --
ROHM Co., Ltd.
ROHM Co., Ltd. has developed six new high-side smart switches (intelligent power devices, or IPDs for short) in the BV1HBxxxEFJ series (BV1HB008EFJ-C, BV1HB012EFJ-C, BV1HB020EFJ-C, BV1HB040EFJ-C, BV1HB090EFJ-C, BV1HB180EFJ-C) with highly accurate current-sensing capability and ON resistances from 9 milliohms to 180 milliohms. They are ideal for protecting loads and subsystems from abnormalities such as overcurrent, overvoltage and overtemperature, ensuring reliable operation and safeguarding sensitive components in automotive lighting as well as in body control such as door locks and power windows. Extensive diagnostic capabilities, e.g., open load and reverse battery detection, further enhance safety and reliability.

Figures: Product features: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202509185429/_prw_PI1fl_9c568Q9V.jpg

Zonal controllers must each manage a large number of loads, but conventional smart switches often lack the drive capability required for high-capacitance loads. The new products feature exceptional high-capacitance load-driving capability, maximizing performance at the critical interface between zonal controllers and output loads (including various ECUs). Leveraging proprietary cutting-edge process technology makes it possible to achieve both low ON resistance and high inductive energy clamp -- two characteristics typically involving a trade-off. The result is a well-balanced integration of three key performance metrics: drive capability, ON resistance and energy tolerance. This enhances system design safety, efficiency and reliability. The devices also incorporate a best-in-class (*) high-precision current-sensing function (+/-5%) that provides effective protection for harnesses connected to output loads. At the same time, the compact, high heat dissipation HTSOP-J8 package ensures excellent design versatility.

(*) ROHM study on high-side smart switches -- October 1, 2025

Figures: Performance comparison: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202509185429/_prw_PI2fl_Ma797vzd.jpg

Figures: Key product characteristics: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202509185429/_prw_PI5fl_h2S0Juf5.jpg

Release: https://www.rohm.com/news-detail?news-title=2025-09-30_news_ipd&defaultGroupId=false

BV1HBxxxEFJ series: https://www.rohm.com/products/power-management/ipds?page=1&PS_IPDType=High%20side%20switches&PS_Generation=GEN3#parametricSearch

Application examples:
Body applications, powertrain/inverter systems, other switch-related circuits

Online sales information:
Sales launch: Now
Distributors: DigiKey, Mouser, Farnell
The products will be offered at other online distributors.
Applicable part No.:
BV1HB008EFJ-CE2, BV1HB012EFJ-CE2, BV1HB020EFJ-CE2, BV1HB040EFJ-CE2, BV1HB090EFJ-CE2, BV1HB180EFJ-CE2
Details: https://kyodonewsprwire.jp/attach/202509185429-O2-m139nTVm.pdf

About ROHM: https://kyodonewsprwire.jp/attach/202509185429-O1-zWSTGvAk.pdf

Logo: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202509185429/_prw_PI4fl_KIMo5ny6.jpg

Official website: https://www.rohm.com/

ROHM Releases New Compact PFC + Flyback Control Reference Design for Power

ROHM — Thu, 18 Sep 2025 16:00:00 +0900

KYOTO, Japan, Sept. 18, 2025 /Kyodo JBN/ --
ROHM Co., Ltd.
ROHM Co., Ltd. has developed a new reference design (REF67004) that uses a single MCU to control two commonly used power-converter types for consumer and industrial power supplies: critical-conduction-mode PFC (power factor correction) and quasi-resonant flyback. Part of ROHM’s LogiCoA(TM) power supply solution, it leverages analog-digital hybrid control, pairing an analog power stage using ROHM silicon MOSFETs and gate-driver ICs with a digitally managed supply built around the low-power LogiCoA(TM) MCU.

Product features: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202509034506/_prw_PI1fl_OxSTnM22.jpg

Analog-controlled power supply is widely used in small- to medium-power industrial applications, such as industrial robots and semiconductor-manufacturing equipment. Rising reliability and precision demands strain pure analog designs. Fully digital supply offers precise control and configurability, but adoption in this range is limited by controller cost and power consumption.

ROHM’s LogiCoA(TM) power supply solution addresses these challenges with a hybrid approach that integrates analog and digital control. It pairs ROHM power devices and gate drivers with low-power LogiCoA(TM) MCUs. As a first step, ROHM released the REF66009 evaluation design for a non-isolated buck converter, followed by REF67004 combining PFC and flyback.

LogiCoA(TM) power supply solution reference design lineup: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202509034506/_prw_PI2fl_284ox573.jpg

- PFC + Flyback Converter: https://www.rohm.com/reference-designs/ref67004
- Buck Converter: https://www.rohm.com/reference-designs/ref66009

REF67004 boosts AC input via critical-conduction-mode PFC, then uses a quasi-resonant flyback to deliver a regulated 24V DC output. A calibration function compensates for variations in external component characteristics, enabling high-precision voltage setting and overcurrent protection. Tighter design margins permit smaller, lower-power devices and inductors, reducing PCB area and system cost.

REF67004 logs operating data -- input/output voltage, current, temperature, pre-shutdown status, and cumulative operating time -- into on-chip non-volatile memory. Parameters and history can be configured and retrieved from a PC via UART (with a signal-conversion device) using sample programs, including the RMOS (Real-time Micro Operating System) power control OS, available on ROHM's website. Practical evaluation is supported by the LogiCoA003-EVK-001 reference design board. ROHM will continue providing reference designs to accelerate customer power supply development.

Release: https://www.rohm.com/news-detail?news-title=2025-08-21_news_reference-design&defaultGroupId=false

About LogiCoA(TM) brand: https://kyodonewsprwire.jp/attach/202509034506-O1-8v9pHQ9Y.pdf

Application examples
The LogiCoA(TM) power supply solution suits industrial and consumer devices requiring approximately 50W to 1kW.
- Industrial robots
- Semiconductor-manufacturing equipment
- Gaming devices

About ROHM: https://kyodonewsprwire.jp/attach/202509034506-O2-D83d59EH.pdf

Logo: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202509034506/_prw_PI3fl_wLEjjnP6.jpg

Official website: https://www.rohm.com/

ROHM Has Developed Ultra-compact CMOS Op Amp: Delivering Industry-leading Ultra-low Circuit Current

ROHM — Tue, 09 Sep 2025 16:00:00 +0900

KYOTO, Japan, Sept. 9, 2025 /Kyodo JBN/ --
ROHM Co., Ltd.
ROHM Co., Ltd. has announced that its ultra-compact CMOS Operational Amplifier (op amp) TLR1901GXZ achieves the industry's lowest operating circuit current (*1). This IC is optimized to be applied as a measurement-sensing amplifier in size-constrained applications such as handheld measurement instruments, wearable devices, and indoor motion detectors.

Figures: Product features: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202508284225/_prw_PI1fl_92DOFqxS.jpg

ROHM has advanced its process, packaging, and proprietary Nano Energy (TM) (*2) circuit technologies to develop an op amp that addresses three key requirements: lower power consumption, higher accuracy, and compact size. The newly developed TLR1901GXZ achieves an ultra-compact footprint of less than 1mm2 by adopting a WLCSP (wafer-level chip scale package) with a fine ball pitch of 0.35mm while delivering an industry-leading low operating current of 160nA (typ.).

Moreover, the TLR1901GXZ features an exceptionally low input offset voltage of just 0.55mV (max.), one of the best among ultra-low current op amps. A maximum input offset voltage temperature drift of 7uV per degrees Celsius ensures high accuracy operation over the operating temperature range.

Figures: performance comparison: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202508284225/_prw_PI2fl_3w155wO1.jpg

Going forward, ROHM will continue to pursue further power savings in op amps by advancing both miniaturization and original ultra-low power technologies. At the same time, the company is committed to improving device performance by reducing noise and offset, expanding power supply voltage ranges, and contributing to solving social issues through more precise application control.

Figures: Key product characteristics: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202508284225/_prw_PI3fl_59JR1Q5W.jpg

(*1) September 9, 2025, ROHM study on ultra-low current products under 500nA
(*2) Nano Energy (TM) is a trademark or registered trademark of ROHM Co., Ltd.

Release: https://www.rohm.com/news-detail?news-title=2025-09-09_news_opamp&defaultGroupId=false

TLR1901GXZ: https://www.rohm.com/products/amplifiers-and-linear/operational-amplifiers/low-power/input-output-full-swing/tlr1901gxz-product

Application examples:
- Consumer devices: wearables, smart devices, motion sensors, etc.
- Industrial equipment: gas detectors, fire alarms, handheld measurement instruments, environmental sensors for IoT, etc.

Online sales information:
Sales launch: Now
Sample price: $2.1/unit (excluding tax)
Distributors:
DigiKey
https://www.digikey.com/en/products/result?s=N4IgTCBcDaIC4BsBOBGAnABhQcwB4C8BaAUzAB9FVMcCSA3Aa0IyxAF0BfIA
Mouser
https://www.mouser.com/new/rohm-semiconductor/rohm-tlr1901gxz-rail-to-rail-cmos-op-amps/
Applicable part No.: TLR1901GXZ-E2
https://www.rohm.com/distribution/-/dinventory/TLR1901GXZ-E2/sample/0
IC-Mounted adapter board: TLR1901GXZ-EVK-001
https://www.rohm.com/distribution?search-box4=TLR1901GXZ-EVK-001&SearchFlagValue=true
The product will be offered at other online distributors as it becomes available.

About ROHM: https://kyodonewsprwire.jp/attach/202508284225-O1-L8k1ec3A.pdf

Logo: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202508284225/_prw_PI4fl_JzHH9R40.jpg

Official website: https://www.rohm.com/

ROHM Develops Ultra-compact MOSFET Featuring Industry-leading Low ON-resistance,

ROHM — Thu, 21 Aug 2025 15:00:00 +0900

KYOTO, Japan, Aug. 21, 2025 /Kyodo JBN/
ROHM Co., Ltd.
ROHM Co., Ltd. has launched the AW2K21, a 30V N-channel MOSFET in a common-source configuration that delivers an industry-best* ON-resistance of 2.0 milliohms (typ.) in a compact 2.0mm x 2.0mm WLCSP package. This innovation addresses the growing demand for fast charging in compact devices like smartphones and wearables, which require bidirectional protection and high-current handling.

*ROHM July 8, 2025 study

Figures: Product features: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202508073360/_prw_PI1fl_4c6Ms62h.jpg

Traditional solutions often rely on two large MOSFETs to meet stringent specs -- 20A current rating, 28-30V breakdown voltage, and less than or equal to 5 milliohms ON-resistance -- resulting in increased board space and complexity. ROHM’s AW2K21 overcomes these limitations by integrating two MOSFETs into a single ultra-compact package, enabling bidirectional protection with reduced footprint and power loss.

Figures: performance comparison: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202508073360/_prw_PI2fl_8rJgqgL5.jpg

The proprietary structure enhances cell density and places the drain terminal on the top surface, unlike conventional vertical trench MOSFETs. This allows for a higher chip-to-package area ratio, minimizing ON-resistance per unit area and supporting high-current operation. Compared to standard 3.3mm x 3.3mm MOSFETs, the AW2K21 reduces footprint and ON-resistance by approximately 81% and 33%, respectively. It also outperforms similarly sized GaN HEMTs with up to 50% lower ON-resistance.

Ideal for power supply and charging circuits, the AW2K21 also excels in load switch applications as a unidirectional protection MOSFET. ROHM is further advancing miniaturization with a 1.2mm x 1.2mm model currently under development.

ROHM continues to drive energy efficiency and miniaturization in electronics, contributing to a more sustainable society through high-performance semiconductor solutions.

Figures: Key Product Characteristics: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202508073360/_prw_PI3fl_6qGC1JV2.jpg

Release: https://www.rohm.com/news-detail?news-title=2025-07-08_news_mosfet&defaultGroupId=false

AW2K21: https://www.rohm.com/products/mosfets/small-signal/dual/aw2k21-product

Application Examples:
Smartphones, tablets, laptops, VR headsets, wearables, portable gaming consoles, compact printers, LCD monitors, and drones

Online Sales Information:
Sales launch: April 2025
Sample price: $3.5/unit (excl. tax)
Distributors: DigiKey (TM): https://www.digikey.com/en/products/detail/rohm-semiconductor/AW2K21AR/26653385?s=N4IgTCBcDaIIIHUwGkwEYQF0C%2BQ
Mouser (TM): https://www.mouser.com/ProductDetail/ROHM-Semiconductor/AW2K21AR?qs=savM97goi5iXEwpYlUTFuw%3D%3D
Farnell (TM): https://www.newark.com/rohm/aw2k21ar/mosfet-dual-n-ch-30v-1-6w-wlcsp/dp/29AM6709
Applicable Part No: AW2K21

The product will be offered at other online distributors as it becomes available.

About ROHM: https://kyodonewsprwire.jp/attach/202508073360-O1-kmg26FJe.pdf

Logo: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202508073360/_prw_PI4fl_R0FM8pC1.jpg

Official website: https://www.rohm.com/

ROHM Introduces New MOSFET for AI Servers with...

ROHM — Tue, 01 Jul 2025 15:00:00 +0900

KYOTO, Japan, July 1, 2025 /Kyodo JBN/ --
ROHM Co., Ltd.
ROHM Introduces New MOSFET for AI Servers with Industry-leading SOA Performance and Low ON-resistance
-Endorsed by Major Global Cloud Platform Provider-

ROHM has released the RY7P250BM, 100V power MOSFET optimized for hot-swap circuits in 48V power systems used in AI servers and industrial power supplies requiring battery protection.

Figures: Product features: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202506190866/_prw_PI1fl_31qJoxc2.jpg

As AI technology advances, data centers face increasing power demand driven by generative AI and high-performance GPUs, creating a need to improve efficiency while supporting higher currents. To address these challenges, the industry is shifting from 12V to more efficient 48V power architectures, where hot-swap circuits are used to replace modules without shutdown. These circuits require MOSFETs that provide both a wide Safe Operating Area (SOA) and low ON-resistance to protect against inrush currents and overloads.

The RY7P250BM combines a wide SOA and low ON-resistance in a compact 8080-size package, reducing power loss, heat, and cooling requirements while enhancing server reliability and energy efficiency. As demand for 8080-size MOSFETs grows, it offers a drop-in replacement for existing designs. It achieves a wide SOA (VDS=48V, Pw=1ms/10ms), ideal for hot-swap circuits. Power loss and heat are minimized with an industry-leading* low ON-resistance of 1.86 milliohms (VGS=10V, ID=50A, Tj=25 degrees C), approximately 18% lower than the typical 2.28 milliohms of comparable 100V wide SOA MOSFETs.

Figures: SOA performance comparison: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202506190866/_prw_PI2fl_6vX9PoF5.jpg

A wide SOA is critical for hot-swap circuits in AI servers subject to large inrush currents. The RY7P250BM meets this need with 16A at 10ms and 50A at 1ms, handling high-load conditions beyond conventional MOSFETs.

Figures: About hot-swap circuit: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202506190866/_prw_PI3fl_LT1L5EsM.jpg

Figures: Specifications: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202506190866/_prw_PI4fl_6065QA8D.jpg

The RY7P250BM has also been certified as a recommended component by a leading global cloud platform provider and is expected to see broad adoption in next-generation AI servers. Its wide SOA and low RDS(on) are highly evaluated in mission-critical cloud applications.

ROHM will continue to expand its 48V-compatible power solutions for servers and industrial equipment, supporting sustainable ICT infrastructure and energy savings through high-efficiency, high-reliability products.

Release: https://www.rohm.com/news-detail?news-title=2025-07-01_news_mosfet&defaultGroupId=false

RY7P250BM: https://www.rohm.com/products/mosfets/small-signal/single-nch/ry7p250bm-product

Application Examples:
48V AI server hot-swap circuits
Industrial robots, motors, and forklifts
Battery-powered systems (e.g., AGVs)
UPS and backup power supplies

*ROHM's July 1, 2025, study on existing 8080-size 100V MOSFETs

About ROHM: https://kyodonewsprwire.jp/attach/202506190866-O1-2Y6vUWhf.pdf

Logo: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202506190866/_prw_PI5fl_q909qe3S.jpg

Official website: https://www.rohm.com/

ROHM Develops New High-power-density SiC Power Modules

ROHM — Thu, 24 Apr 2025 15:00:00 +0900

KYOTO, Japan, Apr. 24, 2025 /Kyodo JBN/ --
ROHM Co., Ltd.
ROHM Co., Ltd. has developed new 4-in-1 and 6-in-1 SiC molded modules in the HSDIP20 package for power-factor-correction (PFC) circuits and LLC-resonant converters (LLC) used in the onboard charger (OBC) for electric vehicles (xEVs). The lineup includes six models rated at 750V (BSTxxx1P4K01) and seven at 1200V (BSTxxx2P4K01), integrating essential power conversion circuits into a compact module that reduces design workload and supports the miniaturization of the OBC.

Figures: Product features
https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202504177553/_prw_PI1fl_W6M5NDFu.jpg

With the rapid electrification of automobiles driving decarbonization efforts worldwide, xEVs are moving to higher battery voltages to extend driving range and speed up charging. Consequently, demand is rising for higher-output OBCs and still-compact and lightweight DC-DC converters. Achieving higher power density requires advanced heat dissipation, but discrete-based designs often struggle with thermal management. ROHM’s HSDIP20 effectively resolves these issues, enabling greater power output while contributing to smaller electric powertrains.

Equipped with an insulating substrate that delivers excellent heat dissipation, the HSDIP20 suppresses chip temperature rise even under high-power conditions. In a typical PFC circuit for OBC applications, a top-side cooled discrete configuration using six devices was compared with a single HSDIP20 6-in-1 module under identical conditions. During 25W operation, the HSDIP20 operated approximately 38 degrees C cooler than the discrete setup. This superior thermal performance supports higher current in a compact form factor, achieving power density more than three times that of top-side cooled discretes and 1.4 times that of similar DIP modules. In the same PFC circuit, the HSDIP20 package reduces mounting area by approximately 52%, significantly contributing to the miniaturization of the OBC and other power conversion systems.

Figures: Performance of HSDIP20 in PFC circuits
https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202504177553/_prw_PI2fl_5vR3E310.jpg

Going forward, ROHM will continue to develop SiC modules that combine compactness and high efficiency, including automotive SiC IPMs designed for greater reliability in smaller packages. To facilitate quicker adoption of HSDIP20 products, ROHM provides robust application-level support, including in-house motor testing equipment, simulations and thermal design data. Two evaluation kits, one for double-pulse testing and another for three-phase full-bridge implementations, are also available, enabling near real-world performance assessments.

Figures: Product lineup
https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202504177553/_prw_PI3fl_1fO5AMI4.jpg

Release: https://www.rohm.com/news-detail?news-title=2025-04-24_news_hsdip&defaultGroupId=false

About ROHM: https://kyodonewsprwire.jp/attach/202504177553-O1-5j62ZTQ4.pdf

Logo: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202504177553/_prw_PI4fl_7uQ1147X.jpg

Official website: https://www.rohm.com/

ROHM's "Power Eco Family": Pioneering Next-generation Power Solutions

ROHM — Wed, 19 Mar 2025 15:00:00 +0900

KYOTO, Japan, Mar. 19, 2025 /Kyodo JBN/ --
ROHM Co., Ltd.
ROHM Co., Ltd. announced on March 19 its commitment to addressing social challenges through electronics by focusing on the development of power semiconductors, which play a critical role in improving efficiency in high-power applications. Under the "Power Eco Family" brand, ROHM offers comprehensive power semiconductor technologies and solutions that contribute to building a sustainable ecosystem.

In recent years, the use of electricity has been accelerating across various fields such as electric vehicles and energy harvesting, with power systems integrated into these applications, which need to improve performance by increasing efficiency, achieving miniaturization, and reducing weight. Consequently, power semiconductors must meet higher performance requirements and withstand harsh environments by specifically providing fast switching speeds, low losses, and superior heat dissipation. In addition, the application scope of power semiconductors continues to expand, increasing demand.

ROHM has accumulated extensive expertise and technological advancements in the power semiconductor sector, including becoming the world's first* to successfully mass-produce SiC (silicon carbide) MOSFETs. ROHM is also expanding into new product areas such as the mass production of GaN (gallium nitride), which, like SiC, is attracting attention as a next-generation semiconductor to meet growing market demand.

*ROHM Study, March 19, 2025

Figure 1. Diagram showing area of each Power Eco Family product by power capacity and operating frequency: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202503065284/_prw_PI1fl_9tAb1z28.jpg

The diagram illustrates the application range of ROHM's power semiconductors, with operating frequency plotted on the horizontal axis and power capacity on the vertical axis. Si (silicon), a long-established semiconductor material, is utilized in the EcoMOS (TM) and EcoIGBT (TM) series of power semiconductors. Meanwhile, next-generation semiconductors such as EcoSiC (TM), which is optimized for ultra-high voltage and high-speed switching, and EcoGaN (TM), which features ultra-high-speed switching, are offered to address diverse application requirements.

ROHM has grouped these four product lines under the Power Eco Family, contributing to the development of a sustainable ecosystem by enhancing application performance.

EcoSiC (TM): https://www.rohm.com/products/sic-power-devices
EcoGaN (TM): https://www.rohm.com/products/gan-power-devices
EcoIGBT (TM): https://www.rohm.com/products/igbt
EcoMOS (TM): https://www.rohm.com/products/mosfets

Figure 2. Building ecosystems by expanding Power Eco Family: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202503065284/_prw_PI2fl_O1In66If.jpg

White paper: https://www.rohm.com/search/application-notes?DocType=White%20Paper&SearchBox=Power%20Eco%20Family

EcoSiC (TM), EcoGaN (TM), EcoIGBT (TM), and EcoMOS (TM) are trademarks or registered trademarks of ROHM Co., Ltd.

About ROHM: https://kyodonewsprwire.jp/attach/202503065284-O1-k1kW22Nh.pdf

Logo: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202503065284/_prw_PI3fl_1gchlX8N.jpg

Official website: https://www.rohm.com/

ROHM's Second-generation MUS-IC (TM) Series Audio DAC Chip for Hi-res Audio Playback ...

ROHM — Wed, 22 Jan 2025 15:00:00 +0900

KYOTO, Japan, Jan. 22, 2025 /Kyodo JBN/ --
ROHM Co., Ltd.
ROHM's Second-generation MUS-IC (TM) Series Audio DAC Chip for Hi-res Audio Playback with Exclusive HD Monaural Mode
- Delivers Authentic Listening Experience by Expressing Three Elements of Spatial Reverberation, Quietness, and Dynamic Range While Preserving Natural "Texture" of Musical Instruments -

ROHM has developed a 32-bit D/A converter IC (DAC chip) and an evaluation board for flagship models in its MUS-IC (TM) series, optimized for high-resolution audio playback. DAC chips are key to audio equipment quality. With over 50 years of expertise, ROHM ensures superior sound design through high-fidelity processors and premium audio power ICs.

Product video: https://youtu.be/5VnsX4SSRQY?si=t_n5OzxBmLpliYZb

ROHM's latest product builds upon the first-generation MUS-IC (TM) BD34301EKV, renowned for its sound quality and adoption in high-end models. The BD34302EKV inherits the core design concept behind ROHM's DAC chip, which emphasizes natural flat sound. By integrating the three elements of spatial reverberation, quietness, and dynamic range from the MUS-IC (TM) series, it authentically reproduces the "texture" of musical instruments for an even more realistic audio experience.

Image: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202501092652/_prw_PI1fl_39cYfY1W.jpg

By incorporating a new algorithm for data-weighted averaging (DWA), the BD34302EKV achieves a THD+N characteristic of -117dB (THD: -127dB), a key performance indicator that enhances sound quality by achieving a sound quality that conveys a realistic sense of texture. In addition, the signal-to-noise ratio (SNR) of 130dB provides noise performance befitting a flagship DAC chip, while a sampling frequency of up to 1,536kHz allows customers to fully leverage the high-precision calculations of their digital signal processors (DSPs).

Product image: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202501092652/_prw_PI4fl_vtl1N22C.jpg

In monaural mode, which allocates one DAC chip per channel, ROHM's proprietary HD (high definition) monaural mode contributes to smoother, more natural sound. As part of the MUS-IC (TM) series, uncompromising craftsmanship has been applied down to the smallest details. Based on years of expertise in sound quality design, the optimal bonding wire material for each terminal of the BD34302EKV was selected to accurately convey the natural "texture" of musical instruments. These features help create the ideal sound sought by high-end audio manufacturers.

Special page: https://micro.rohm.com/en/mus-ic/

*In this release, "DAC chip" differentiates the IC from the DAC in audio equipment.
*MUS-IC is a trademark or registered trademark of ROHM Co., Ltd.

Release: https://www.rohm.com/news-detail?news-title=2025-01-22_news_music&defaultGroupId=false

About ROHM: https://kyodonewsprwire.jp/attach/202501092652-O1-39CK07wm.pdf

Logo: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202501092652/_prw_PI3fl_o748borj.jpg

Official website: https://www.rohm.com/

ROHM Develops 1kW-class High-power Infrared Laser Diode

ROHM — Tue, 07 Jan 2025 15:00:00 +0900

KYOTO, Japan, Jan. 7, 2025 /Kyodo JBN/ --
ROHM Co., Ltd.
-125W × 8-channel High-power Array Significantly Improves Measurement Distance and Resolution in LiDAR Applications-

ROHM has developed the high-output RLD8BQAB3 laser diode for LiDAR-equipped advanced driver assistance systems (ADAS) to enable precise distance measurement and spatial recognition. This product also targets consumer and industrial applications, including drones, robot vacuum cleaners, automated guided vehicles (AGVs), and service robots.

Image: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202412202062/_prw_PI1fl_S2Aru7Pq.jpg

LiDAR adoption has increased across various automation-focused applications, driving demand for high-performance laser diodes capable of achieving kW-level outputs. These diodes must emit light at close intervals for enhanced detection accuracy over longer distances.

ROHM’s patented technology delivers narrow laser emission widths, supporting high-accuracy, long-distance LiDAR systems. Building on this, the new RLD8BQAB3 introduces a 125W, 8-channel (1kW-class) array design to meet growing market demand for compact, high-performance solutions.

This ultra-compact (3.3mm × 5.6mm) surface-mount infrared laser diode is optimized for Time of Flight (ToF) systems. It features 8 emission areas (each 300 micrometers wide) per element, mounted on a high-heat-dissipation submount. A clear glass cap, an industry first for surface-mount laser diodes, ensures high beam quality by preventing light scattering caused by scratches, a common issue in resin-encapsulated designs.

The product also enables flexible irradiation options, including individual and simultaneous emissions, achieving industry-leading* 1kW-class output. Additional features include uniform emission intensity across the emission width and a low wavelength temperature dependence of 0.1nm/degrees Celsius (compared with 0.26 to 0.28 nm/degrees Celsius for standard products), significantly outperforming conventional solutions.

*ROHM’s January 7, 2025 study

The array configuration reduces emission gaps between channels, while a bandpass filter, which allows only signals in a specific light wavelength band to pass through, minimizes ambient light interference, enhancing long-distance detection and high-definition LiDAR functionality.

Product features image: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202412202062/_prw_PI2fl_0vqn7eaO.jpg

Samples for the new product are now available. Preparations are underway to ensure this product complies with automotive standards (AEC-Q102). For further details, please visit the inquiry page on the ROHM website.

Product page: https://www.rohm.com/products/laser-diodes/high-power-lasers/rld8bqab3-product

High-power laser diode lineup for LiDAR: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202412202062/_prw_PI3fl_Emh70ByS.jpg

Release: https://www.rohm.com/news-detail?news-title=2025-01-07_news_laser-diode&defaultGroupId=false

About LiDAR: Short for Light Detection and Ranging, an application that uses the ToF system (comprising a light source and ToF or image sensor) to sense ambient conditions.

About ROHM: https://kyodonewsprwire.jp/attach/202412202062-O1-FWadA6O5.pdf

Logo: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202412202062/_prw_PI4fl_A3y207F9.jpg

Official website: https://www.rohm.com/

Valeo and ROHM Semiconductor Co-develop Next-generation Power Electronics

ROHM — Wed, 27 Nov 2024 15:00:00 +0900

KYOTO, Japan, Nov. 27, 2024 /Kyodo JBN/ --
ROHM Co., Ltd.
ROHM Semiconductor GmbH, a group company of ROHM Co., Ltd., a leading semiconductor/electronic component manufacturer in Japan, will provide its 2-in-1 silicon carbide (SiC) molded module, the TRCDRIVE pack (TM), to Valeo S.A., a Paris-based leading automotive technology company, for future powertrain solutions. This is their first step toward collaboration to optimize the next generation of power modules for electric motor inverters using their combined expertise in power electronics management.

Valeo is broadening access to efficient, electrified mobility across various vehicle types and markets from the smallest one (e-bikes), through the mainstream (passenger cars) to the biggest one (e-trucks). By combining Valeo’s expertise in mechatronics, thermal management and software development with ROHM’s power modules, Valeo drives the power electronics solution forward, contributing to the performance, efficiency, and decarbonization of automotive systems worldwide.

Both companies have been collaborating since 2022, refining power electronics to deliver higher energy efficiency, reducing heat with optimized cooling and mechatronic integration, and increasing overall reliability with SiC packaging, aiming to offer optimized cost-performance solutions.

Photograph: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202411210357/_prw_PI1fl_yr2a11Kv.jpg

"This partnership marks, for Valeo Power Division, a significant step forward in delivering advanced and high-efficiency power electronics," says Xavier DUPONT, Valeo Power Division CEO. "Together, we aim to set new industry standards for high-voltage inverters and accelerate the transition toward more efficient and affordable electric mobility."

"We are pleased to support Valeo, a renowned automotive supplier, with our power semiconductors. ROHM’s TRCDRIVE pack (TM) provides high power density, leading to improved power efficiency. Together, we contribute to the development of highly efficient powertrains by fostering the collaboration with Valeo," says Wolfram HARNACK, President, ROHM Semiconductor GmbH.

These evolutions are all essential to supporting the growing demand for longer-range, faster charging capabilities, and for overall affordability, high-performance, and an affordable inverter for BEVs and PHEVs.

Valeo will start supplying its first series project in early 2026. Valeo and ROHM will contribute to improving efficiency and downsizing of Valeo’s next generation of xEV inverters.

Release: https://www.rohm.com/news-detail?news-title=2024-11-26_news_valeo&defaultGroupId=false

TRCDRIVE pack (TM): https://www.rohm.com/news-detail?news-title=2024-06-11_news_trcdrive-pack&defaultGroupId=false

TRCDRIVE pack (TM) is a trademark or registered trademark of ROHM Co., Ltd.

About companies: https://kyodonewsprwire.jp/attach/202411210357-O1-9y6ObDIj.pdf

Logo: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202411210357/_prw_PI2fl_0XMS1jn6.jpg

Official website: https://www.rohm.com/

ROHM’s New 1200V IGBTs Achieve Industry-leading Low-loss Characteristics ...

ROHM — Tue, 12 Nov 2024 16:00:00 +0900

KYOTO, Japan, Nov. 12, 2024 /Kyodo JBN/ --
ROHM Co., Ltd.
ROHM’s New 1200V IGBTs Achieve Industry-leading Low-loss Characteristics with High Short-circuit Tolerance

- Contributing to Higher Efficiency in Automotive Electric Compressors and Inverters for Industrial Equipment -

ROHM Co., Ltd. has developed fourth-generation 1200V IGBTs that are automotive-grade and qualified for AEC-Q101, combining class-leading* low-loss characteristics with high short-circuit resistance. This makes the devices ideal for vehicle electric compressors, high-voltage heaters, and industrial inverters. The current lineup includes four models in the RGA series in discrete packages (TO-247-4L and TO-247N), along with 11 bare chip variants with plans to further expand the lineup in the future.

*ROHM’s November 2024 study

Product Pages
Discrete:https://www.rohm.com/products/igbt/field-stop-trench-igbt?CollectorEmitterVoltage_num=1200.0&PS_PackageShortCode=TO-247-4L|TO-247N&CollectorEmitterSaturationVoltage_num=1.6#parametricSearch

Bare chips: https://www.rohm.com/products/igbt/igbt-bare-die?SearchWord=sg84#productFamily

In addition to these features, the devices achieve an industry-leading short-circuit withstand time of 10 microseconds (Tj=25 deg C), together with low switching and conduction losses while maintaining a high withstand voltage of 1200V and meeting automotive standards by reviewing the device structure, including the peripheral design.

Simultaneously, the new TO-247-4L package, which features four terminals, can accommodate an effective voltage of 1100V in a Pollution Degree 2* environment by ensuring adequate creepage distance between pins. This enables support for higher-voltage applications than conventional products.

*"Pollution Degree" indicates contamination levels in the surrounding environment. 2 refers to typical indoor environments.

Image: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202411069433/_prw_PI1fl_CQa0u3n1.jpg

Implementing creepage distance measures on the device side alleviates the design burden for manufacturers. Furthermore, the TO-247-4L package achieves high-speed switching by including a Kelvin emitter terminal, resulting in even lower losses. In fact, when comparing the efficiency of the new TO-247-4L packages with conventional and standard products in a three-phase inverter, the loss is reduced by approximately 24% compared to standard products and by 35% over conventional products -- contributing to higher efficiency in drive applications.

ROHM will continue to expand its lineup of high-performance IGBTs that contribute to greater miniaturization and higher drive efficiency in automotive and industrial equipment applications.

Release: https://www.rohm.com/news-detail?news-title=2024-11-07_news_igbt&defaultGroupId=false

Product image: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202411069433/_prw_PI2fl_leaA4WlX.jpg

ROHM’s RGA series of 1200V IGBTs has been adopted in Semikron Danfoss’ MiniSKiiP (R) series of power semiconductor modules featuring rated current levels of 10A to 150A.
https://www.rohm.com/news-detail?news-title=2023-04-25_news_semikron&defaultGroupId=false

MiniSKiiP (R) is a trademark or registered trademark of Semikron Danfoss.

About ROHM: https://kyodonewsprwire.jp/attach/202411069433-O1-3tAN6Q1W.pdf

Logo: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202411069433/_prw_PI3fl_cUL0OPOI.jpg

Official website: https://www.rohm.com/

New Short Film Takes Behind-the-scenes Look at Next-generation GaN Power Semiconductor ...

ROHM — Thu, 26 Sep 2024 16:00:00 +0900

KYOTO, Japan, Sept. 26, 2024 /Kyodo JBN/ --
ROHM Co., Ltd.
New Short Film Takes Behind-the-scenes Look at Next-generation GaN Power Semiconductor Device Development

- Making GaN Easy to Use: Engineering Challenges from R&D to Practical Application -

ROHM Co., Ltd. has released the sixth German-language installment in the "Stories of Manufacturing" series of short films, this time taking viewers behind the scenes at the development of GaN devices, which are attracting attention as next-generation power semiconductors.

Actively involved since the 2000s in the research and development of power semiconductors using GaN, ROHM developed in 2022 proprietary GaN HEMTs that leverage the strengths of the company’s vertically integrated production system. Furthermore, it has developed the Power Stage IC that combines a dedicated gate driver IC and a GaN HEMT in a single package, offering a cost-effective solution for GaN devices that have historically presented challenges. In addition, they contribute to lower power consumption and miniaturization in a range of fields, from fast chargers and data centers to on-board chargers for xEVs. This latest short film showcases the technical challenges and development stories leading up to the mass production of GaN devices and gate driver ICs.

This video can be viewed on ROHM's official website and YouTube channel.

Logo: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202409196667/_prw_PI1fl_oeubbmLk.jpg

Film image: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202409196667/_prw_PI2fl_3gBAsy5q.jpg

"Stories of Manufacturing"
In Stories of Manufacturing, ROHM uncovers the passion that its developers have for manufacturing and delves into the behind-the-scenes stories of their projects in the form of interviews, showcasing how it consistently supplies high-quality products, with "quality first" and "vertically integrated production system" as common concepts.

Stories
How well can we use data? This is where skill comes in -- Quality Division Analysis Center
The first in the industry, which was a challenge in itself -- Developing Flexible Lines
For everyone who loves music -- the Birth of MUS-IC -- Audio Device Development
Transforming ROHM's unique "strengths" into "trust" -- Wafer Production Process
The endless struggle against invisible noise -- EMC Countermeasure Design
GaN paves the way to carbon neutrality -- GaN Power Semiconductor Devices

- English
Website: https://www.rohm.com/company/about/stories-of-manufacturing/gan
YouTube: https://youtube.com/playlist?list=PL0xO9BAX82ePYc-njfvi5BxyWlrpqvcFA&si=J_bK-pNSCqQYjJAQ

- German
Website: https://www.rohm.de/company/about/stories-of-manufacturing/gan
YouTube: https://youtube.com/playlist?list=PL0W_pMg_e_JMXNTeZuZU5pgJbh6IxazKd&si=UqfPL-eo9gvhlAs9

Languages supported:
English, German, Japanese

Official website: https://www.rohm.com/

About ROHM: https://kyodonewsprwire.jp/attach/202409196667-O1-rp1xd7tc.pdf

ROHM's 4th-Generation SiC MOSFET Bare Chips Adopted in 3 EV Models of ZEEKR from Geely

ROHM — Thu, 05 Sep 2024 15:00:00 +0900

KYOTO, Japan, Sept. 5, 2024 /Kyodo JBN/ --
ROHM Co., Ltd.
ROHM Co., Ltd. has announced the adoption of power modules equipped with 4th-generation SiC MOSFET bare chips for traction inverters in three models of the ZEEKR EV brand from Zhejiang Geely Holding Group, one of the top 10 global automakers. Since 2023, these power modules have been mass-produced and shipped from HAIMOSIC (SHANGHAI) Co., Ltd. -- a joint venture between ROHM and Zhenghai Group Co., Ltd. -- to Viridi E-Mobility Technology (Ningbo) Co., Ltd. a Tier 1 manufacturer under Geely.

Geely and ROHM have been collaborating since 2018, beginning with technical exchanges, then later forming a strategic partnership focused on SiC power devices in 2021. This led to the integration of ROHM's SiC MOSFETs into the traction inverters of three models: the ZEEKR X, 009, and 001. In each of these EVs, ROHM’s power solutions centered on SiC MOSFETs play a key role in extending the cruising range and enhancing overall performance.

ROHM is committed to advancing SiC technology, with plans to launch 5th-generation SiC MOSFETs in 2025 while accelerating market introduction of 6th- and 7th-generation devices. Moreover, by offering SiC in various forms, including bare chips, discrete components, and modules, ROHM is able to promote the widespread adoption of SiC technology, contributing to the creation of a sustainable society.

Image: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202408275466/_prw_PI1fl_X6yAZ1a1.jpg

ZEEKR Models Equipped with ROHM’s EcoSiC (TM)
The ZEEKR X, which features a maximum output exceeding 300kW and a cruising range of over 400km despite being a compact SUV, is attracting attention even outside China due to its exceptional cost performance. The 009 minivan features an intelligent cockpit and large 140kWh battery, achieving an outstanding maximum cruising range of 822km. And for those looking for superior performance, the flagship model, 001, offers a maximum output of over 400kW from dual motors with a range of over 580km along with a four-wheel independent control system.

Release: https://www.rohm.com/news-detail?news-title=2024-08-29_news_geely&defaultGroupId=false

About ZEEKR: https://kyodonewsprwire.jp/attach/202408275466-O1-7J42jJ8u.pdf

About ROHM: https://kyodonewsprwire.jp/attach/202408275466-O2-dfjDjY16.pdf

Market background and EcoSiC (TM): https://kyodonewsprwire.jp/attach/202408275466-O3-3Kf8Xrms.pdf

Supporting information: https://kyodonewsprwire.jp/attach/202408275466-O4-ovCJAWs9.pdf

Logo: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202408275466/_prw_PI2fl_ftufK59s.jpg

EcoSiC is a trademark or registered trademark of ROHM Co., Ltd.

Official website: https://www.rohm.com/

ROHM Develops Industry's Smallest CMOS Op Amp Optimized for Smartphones and IoT Devices

ROHM — Thu, 01 Aug 2024 15:00:00 +0900

KYOTO, Japan, Aug. 1, 2024 /Kyodo JBN/ --
ROHM Co., Ltd.
ROHM Co., Ltd. has developed an ultra-compact 1.8V to 5V rail-to-rail CMOS operational amplifier (op amp), the TLR377GYZ, which is the smallest in the industry as of August 1, 2024 (ROHM study). It is optimized for amplifying signals from sensors such as temperature, pressure, and flow rate as well as in smartphones, small IoT devices, and similar applications.

The size of smartphones and IoT devices continues to decrease, requiring smaller components. To accurately amplify small signals as needed in high-precision sensing, op amps must improve low input offset voltage and noise performance while continuing to shrink the form factor.

The TLR377GYZ successfully balances miniaturization with high accuracy (a challenge for conventional op amps) by further evolving proprietary circuit design, process, and packaging technologies cultivated over many years.

Op amps' input offset voltage and noise generation degrade amplification accuracy and can be suppressed by increasing the size of built-in transistors, but at the expense of miniaturization. In response, ROHM developed proprietary circuits which achieve a maximum offset voltage as low as 1mV without increasing the size of transistors with greatly reducing flicker noise, while ultra-low noise is achieved with an input equivalent noise voltage density of 12 nV/square root Hertz by optimizing the resistive components at the element level. Furthermore, the new product adopts a WLCSP (Wafer Level Chip Scale Package) with a ball pitch of just 0.3mm, utilizing original packaging technology. This reduces size by approximately 69% compared to conventional products and 46% over existing compact products.

Image: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202407193832/_prw_PI1fl_Lw8R2Z61.jpg

The IC-mounted conversion board that can replace SSOP6 packages is also offered to support replacement considerations and initial evaluation. Both the new product and conversion board are available for purchase through online distributors. Additionally, the high-accuracy SPICE model, called ROHM Real Model, is available on ROHM's website for verification simulations.

Product page: https://www.rohm.com/products/amplifiers-and-linear/operational-amplifiers/high-performance/input-output-rail-to-rail-low-offset-voltage/tlr377gyz-product

Going forward, in addition to greater miniaturization and accuracy, ROHM will enhance op amp performance by reducing power consumption using proprietary ultra-low current consumption technology.

Release: https://www.rohm.com/news-detail?news-title=2024-08-01_news_opamp&defaultGroupId=false

Product Image: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202407193832/_prw_PI2fl_C3600208.jpg

About ROHM: https://kyodonewsprwire.jp/attach/202407193832-O1-W0Of9M06.pdf

Logo: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202407193832/_prw_PI3fl_847u7p5x.jpg

Official website: https://www.rohm.com/

ROHM’s New "TRCDRIVE pack (TM)" with 2-in-1 SiC Molded Module:

ROHM — Tue, 11 Jun 2024 17:00:00 +0900

KYOTO, Japan, June 11, 2024 /Kyodo JBN/ --
ROHM Co., Ltd.
- Industry-leading* Power Density Achieved by Integrating 4th Generation SiC MOSFETs in Compact Package -

ROHM Co., Ltd. has developed four models as part of the TRCDRIVE pack (TM) series with 2-in-1 SiC molded modules (two of 750V-rated: BSTxxxD08P4A1x4, two of 1,200V-rated: BSTxxxD12P4A1x1) optimized for xEV (electric vehicles) traction inverters. TRCDRIVE pack (TM) supports up to 300kW and features high-power-density and a unique terminal configuration, helping solve the key challenges of traction inverters in terms of miniaturization, higher efficiency, and fewer person-hours.

As the electrification of cars rapidly advances towards achieving a decarbonized society, the development of electric powertrain systems that are more efficient, compact, and lightweight is currently progressing. However, for SiC power devices that are attracting attention as key components, achieving low loss in a small size has been a difficult challenge. ROHM solves these issues inside powertrains with its TRCDRIVE pack (TM).

A trademark brand for ROHM SiC molded type modules developed specifically for traction inverter drive applications, TRCDRIVE pack (TM) reduces size by utilizing a unique structure that maximizes heat dissipation area. On top, ROHM’s 4th Generation SiC MOSFETs with low ON resistance are built in, resulting in an industry-leading power density level 1.5 times higher than that of general SiC molded modules while greatly contributing to the miniaturization of inverters for xEVs.

The modules are also equipped with control signal terminals using press fit pins enabling easy connection by simply pushing the gate driver board from the top, reducing installation time considerably. In addition, low inductance (5.7nH) is achieved by maximizing the current path and utilizing a two-layer bus-bar structure for the main wiring, contributing to lower losses during switching.

TRCDRIVE pack (TM) image: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202406041753/_prw_PI1fl_w5DAh6xu.jpg

Despite developing modules, ROHM has established a mass production system similar to discrete products, making it possible to increase production capacity 30 times compared to conventional SiC case-type modules.

Release: https://www.rohm.com/news-detail?news-title=2024-06-11_news_trcdrive-pack&defaultGroupId=false

Product image: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202406041753/_prw_PI2fl_MuIp6XyE.jpg

*ROHM’s June 11, 2024 study
TRCDRIVE pack (TM) is the trademark or registered trademarks of ROHM Co., Ltd.

About ROHM: https://kyodonewsprwire.jp/attach/202406041753-O1-8a0140NZ.pdf

Logo: https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202406041753/_prw_PI3fl_54i0YolV.jpg

Official website: https://www.rohm.com/

ROHM Develops Automotive Primary LDOs:

ROHM — Fri, 15 Mar 2024 15:00:00 +0900

ROHM Co., Ltd.
KYOTO, Japan, Mar. 15, 2024 /Kyodo JBN/ --
ROHM Develops Automotive Primary LDOs: Leveraging Original QuiCur(TM) Technology to Achieve Industry-Leading Load Response Characteristics
-Ensuring Stable Output in Automotive Applications with High Input Voltage and Significant Load Jumps-

ROHM Co., Ltd. has developed 45V-rated 500mA-output primary LDO regulators: BD9xxM5-C. These devices are suitable for supplying power to automotive electronic components such as ECUs that operate from vehicle batteries.

BD9xxM5-C: https://www.rohm.com/products/power-management/linear-regulators/single-output-ldo-regulators?page=1&PS_ProductSeries=BD9xxM5%20series&PS_CommonStandard=AEC-Q100%20(Automotive%20Grade)#parametricSearch

Logo:
https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202403087752/_prw_PI4fl_KmMw5Jg7.jpg

In recent years, the number of onboard power supply systems and functions continues to grow as electrification in the automotive industry progresses. This increases demand for primary LDOs that can directly step down the battery voltage to MCUs and other components used in ECUs. However, the energy supplied by the vehicle’s lead-acid battery is often subject to sudden voltage fluctuations, which primary LDOs are required to provide with excellent line-transient response in these conditions.

At the same time, ECUs and other downstream devices often experience load current variations during operation, which also demand excellent load-transient response characteristics. A high-frequency response is essential for fast output voltage recovery, but it has been difficult to provide sufficient phase margin at the same time to ensure stable operation. In response, ROHM developed a novel solution that addresses these challenges.

The BD9xxM5-C incorporates original QuiCur(TM) high-speed load response technology that delivers excellent response characteristics to load current fluctuations. For example, the LDO can maintain output to within 100mV of set voltage even as the load changes between 0 and 500mA in 1-microsecond (rise-time/fall-time). Furthermore, low 9.5-microampere (typ.) current consumption contributes to lower power consumption in automotive applications. These new products will be available in four packages, ranging from the compact HTSOP-J8 to the high heat dissipation TO252 and HRP5 types. This allows users to select the most suitable package for each use case.

ROHM will continue to improve reliability while reducing power consumption in automotive applications by developing products utilizing its strengths in analog and other technologies.

Image:
https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202403087752/_prw_PI1fl_0SgNUwq9.jpg

Release: https://www.rohm.com/news-detail?news-title=2024-03-14_news_ldo&defaultGroupId=false

Performance comparison:
https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202403087752/_prw_PI2fl_5LSEbl7Q.jpg

Response performance comparison:
https://cdn.kyodonewsprwire.jp/prwfile/release/M106254/202403087752/_prw_PI3fl_bJ14w0iv.jpg

QuiCur(TM) technology: https://www.rohm.com/news-detail?news-title=rohm-establishes-quicur-that-maximizes-the-response-performance-of-power-supply-ics&defaultGroupId=false

*QuiCur(TM) is a trademark or registered trademark of ROHM Co., Ltd.

About ROHM:
https://kyodonewsprwire.jp/attach/202403087752-O1-7xfro8hX.pdf

Official Website: https://www.rohm.com/