ROHM‘s New DC/DC Converter IC for ADAS Achieves Best-in-Class-Leading Stable Operation QuiCur™ technology remarkably increases the design flexibility

时间： 2022-09-29 来源：ROHM News

技术问答

ROHM developed the buck DC/DC Converter IC with built-in MOSFET (Switching regulator), BD9S402MUF-C, for automotive applications such as infotainment and ADAS (Advanced Driver Assistance Systems) incorporating onboard sensors and cameras that are becoming more advanced.

In recent years, safety requirements in the automotive sector have increased as technological innovations in accident prevention and autonomous driving continue to progress. In line with this, SoCs and MCUs that control ADAS incorporating onboard sensors and cameras are leading to greater sophistication, necessitating power supply ICs to operate more stably even under severe load current fluctuation conditions.

To meet these needs, in 2017, ROHM established Nano Pulse Control™ ultra-high-speed pulse control technology that provides a low output voltage at high switching frequencies, followed by QuiCur™ high-speed load response technology in 2021 that ensures stable operation. The IC to adopt QuiCur™ technology allows for class-leading stable operation compared with automotive secondary DC/DC converter ICs with equivalent performance.

The new BD9S402MUF-C supports output voltages down to 0.6V and 4A output current at switching frequencies higher than 2MHz in a compact size demanded by increasingly sophisticated secondary power supply applications for high-performance MCUs and SoCs. What’s more, it is incorporating proprietary QuiCur™ high-speed load response technology and enables stable operation at an industry-leading 30mV (measurement conditions: 5V input voltage, 1.2V output voltage, 44μF output capacitance, load current variation 0 to 2A/2μs). This translates to a 25% reduction in output voltage fluctuation over class-leading standard products with equivalent functionality, making it ideal for use in the latest ADAS with severe power supply conditions requiring stable operation within 5% even with low voltage output.

The BD9S402MUF-C is also equipped with a new load response performance selection function that allows users to easily switch priority between ‘voltage fluctuation’ (for industry-leading stable operation), and ‘capacitance reduction’ (to ensure stable operation at 22μF) via terminal setting. The result is that users can significantly reduce the resources required for power circuit design, as stable operation can be easily achieved not only at the initial design but also during specification or model changes.

Going forward, ROHM plans on expanding its lineup of power supply ICs incorporating QuiCur™ to support a wider range of applications.

What is QuiCur™ Technology?

QuiCur™ is named after ROHM’s original ‘Quick Current’ high-speed load response circuit that maximizes load transient response characteristics without causing instability in the feedback circuits of power supply ICs. It allows not only stable operation with minimal output capacitance, but also enables linear adjustment of capacitance and output voltage fluctuation to easily achieve stable operation even when the capacitance is changed due to specification changes.

New Product Details

The BD9S402MUF-C, in addition to meeting the basic requirements of secondary DC/DC converter ICs in ADAS for 2MHz or higher operation and 4A output current, ROHM’s unique Nano Pulse Control™ ultra-high-speed pulse control technology delivers next-generation low voltage output down to 0.6V – much lower than the typical 1.0V voltage output required by current SoCs and MCUs. At the same time, equipped QuiCur™ high-speed load response technology achieves extremely stable operation. The ability to suppress voltage output variation within 5% even at low output voltages below 1.0V makes it ideal for secondary power supplies for the latest ADAS.

The BD9S402MUF-C is also equipped with a load response performance selection function that leverages the characteristics of QuiCur™ technology, allowing users to easily switch priority between ‘voltage fluctuation’ (for industry-leading stable operation) and ‘capacitance reduction’ (to ensure stable operation at 22μF) by setting High/Low of the GAIN pin. For example, the user can set the GAIN pin to High in the case of a power supply for a high-performance SoC that needs to handle fast load fluctuations. Or the user can set the GAIN pin with Low for a good balance between performance and capacitor cost when the power supply for an MCU doesn’t need to consider high accurate voltage fluctuations. This contributes to a significant increase in design flexibility for application designers, as stable operation can be easily achieved at initial design as well as during specification or model changes.

*ROHM also offers another lineup of secondary DC/DC converter ICs. Click on the URL below for more information.

Application Examples

◇ ADAS ECU, sensors, cameras, and radars
◇ Communication systems including wireless modules and gateways
◇ Infotainment systems such as clusters and head-up displays (HUDs)

Along with secondary power supplies in automotive applications that employ high-performance SoCs, MCUs, DDR memory, etc.

Availability:

Now (samples), April 2023 (in mass production)

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本文由翊翊所思转载自ROHM News，原文标题为:ROHM’s New DC/DC Converter IC for ADAS Achieves Best-in-Class-Leading Stable Operation QuiCur™ technology remarkably increases the design flexibility，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

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【产品】ROHM面向高端ADAS开发出业界超稳定运行的DC-DC转换器IC BD9S402MUF-C

ROHM面向包括ADAS、信息娱乐系统等日益复杂的车载应用，开发出一款降压型DC-DC转换器IC“BD9S402MUF-C”。将QuiCur™技术融入，在同等性能的车载二次侧DC-DC转换器IC中，实现业界先进超稳定运行。

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【选型】ROHM（罗姆）工业设备电机用功率元器件/传感器接口/稳压器选型指南（英文）

目录- Industrial Motor System POWER DEVICE SENSOR INTERFACE VOLTAGE REGULATOR

型号- BD7673AG,RGS30TSX2DHR,ML62Q1300 SERIES,RPL-441C1,SMFXX SERIES,BD9BXXX,R6009JND3,BM1P105FJ,R6507KNJ,RGS60TS65DHR,R8019KNZ4,PDZV,R6025JNX,SIR-568ST3F,R6507KNX,BM6243FS,BM2P134HF,R6509KND3,GMR,BSM180D12P3C007,RFS20TJ6S,BSM400D12P2G003,BM61M41RFV-C,RJ1G12BGN,R8006KND3,R6500KNX SERIES,BM2P131EK,RGT50NS65D,RBLQ10RSM10,BSM600C12P3G201,BM2P131H,RD3L08BGN,RSJ301N10,RGT40TM65D,RGS00TS65DHR,RD3G600GN,BM2SCQ121T-LBZ,R6547KNZ4,BM2P133HK,BSM400C12P3G202,SCT2750NY,R6070JNZ4,BM2P0362,BM2P0361,RQ3G100GN,BM2P134H,R8052KNZ4,BM2P134EK,R6511KND3,RSDTXXNS SERIES,BM2P134EF,BM2P101HK,BM1P107FJ,BM1P062FJ,RFL,BD1020HFV,BM6241FS,RFS,R6004JNJ,R6030JNZ4,BD7672BG,R6524ENX,RS1P600BE,BD9VXXX,R8002KNX,R6524ENJ,BD63001AMUV,BSM180D12P2C002,BM2P104EKF,RBLQ20NL10C,RGT,RGT20NL65,RGS,BM2P133EK,R8003KNX,RBLQ SERIES,BM1P061FJ,RGT00TS65D,BM6242FS,BM2P101H,R6576KNZ4,RS1L120GN,PML SERIES,BM1Q002FJ,RFS30TZ6S,BD9AXXX,BD9A101MUV,BD9DXXX SERIES,BD7682FJ-LB,RGT16BM65D,RD3P08BBD,BM2P0161,RFL60TZ6S,R6500ENX,RBLQ10BM10,R8009KNX,BSM600D12P3G001,BM60052AFV-C,R6504KNJ,BM2SCQ122T-LBZ,R6504KND3,BD9BXXX SERIES,RFL SERIES,RGT8NS65D,R6515KNX,KX132-1211,RGT40NL65D,GMR SERIES,BM2P061H,R6004JND3,R6504KNX,R6507KND3,BD9A201FP4,BM2P064EK,R6511ENX,R6511ENJ,BM2P064EF,R6515KNJ,BM2SCQ124T-LBZ,BD9EXXX,R6530ENX,R60XXJNX SERIES,KX-134-1211,BM2P104HKF,BD7682FJ,BSM300D12P3E005,RGT80TS65D,R8011KNX,BS2103F,KX132,KX134,R6530KNZ4,RGT50TS65D,R6535ENZ4,RGT30NL65D,BM2P0161K,BM6109FV-C,RPL-121,SMFXX,RPL-122,RPL-243,BM1P066FJ,RPL-125,RPL-246,BM2P064H,RGS00TS65EHR,R6012JNX,UCR SERIES,ML62Q1000,RGT8TM65D,BM2P131FK,BM2P064EKF,R6524KNZ4,RGT8BM65D,R6520ENZ4,BS2101F,BD9DXXX,R6509ENJ,RS1G120MN,R6050JNZ4,RGT60TS65D,RGT16NS65D,R6509ENX,BM2P0163T,BM1P065FJ,R6012JNJ,RPL-222,RJ1L12BGN,RPL-221,BD9G102G,BD7679G,BS2114F,RGT50NL65D,RFS60TZ6S,SIM-20ST,R8000KNX,R8011KNZ4,BM2P131HK,PML,RFL30TZ6S,RPL-352,BD9AXXX SERIES,BM1Q104FJ,VSXXUA1LAM,RQ3L090GN,BM2P134EKF,BM2SCQ12XT-LBZ SERIES,BSM300C12P3E201,R65XXENX,R6020JNJ,BM2SCQ123T-LBZ,BM2P061EK,R6520ENX,R6524KNX,RPMD-0100,BM6101FV-C,BM1P068FJ,RFS SERIES,R8006KNX,BD9GXXX,BD7684FJ-LB,BSM180C12P2E202,R6520ENJ,R6524KNJ,BM61S41RFV-C,RGT40TS65D,BM2P061FK,BSM300C12P3E301,RGT50TM65D,RD3P200SN,R6007JNJ,RJ1P12BBD,BS2114FS,BD9E304FP4,BSM120C12P2C201,BM1P067FJ,R6042JNZ4,ML62Q1300,R6018JNX,SIM-22ST,BD9VXXX SERIES,RGS80TSX2DHR,R6509END3,R6030JNX,ML62Q1500 SERIES,R6502END3,BDJXXX0AHFV,KDZV,ML62Q1000 SERIES,RGT20NL65D,R6007JNX,R8002KND3,BD9G341AEFJ,BM2P061HK,BM64378S-VC,R6009JNX,R6020JNZ4,BD9EXXX SERIES,R6009JNJ,R6507ENJ,RGS80TS65DHR,R8019KNX,BM6102FV-C,BM2P063EK,BSM120D12P2C005,R6507ENX,RQ3G150GN,RGT30TM65D,BS2132F,LTR SERIES,BM65364S-VA,PSR,BM65364S-VC,RS1L180GN,R6547ENZ4,R6511KNX,BD768XFJ-LB SERIES,VSXXVUA1LAM,RGS50TSX2DHR,R6500KNX,R6576ENZ4,BM2P064HF,BM2PHKF,R60XXJNX,RSJ650N10,R8001KND3,BSM300D12P2E001,BM2P134HKF,R65XXKNX SERIES,BM64377S-VC,R6500ENX SERIES,PTZ,R6511KNJ,BSM250D17P2E004,R6006JND3,BD9G500EFJ,ML62Q1500,RB218NS200,RGT16TM65D,R6020JNX,BM2P063HK,RD3G400GN,PSR SERIES,SCT2H12NY,RB088NS200,SCT2H12NZ,BM2P103HK,BM1P101FJ,R6507END3,BM60054AFV-C,RD3L220SN,LTR18,RGT20TM65D,KDZLV,BM60055FV-C,BSM080D12P2C008,SIM-030ST,BM2SCQ12XT-LBZ,RPL-441C1E,RPL-0352E,RGT30NS65D,LTR10,BM60060FV-C,BM2P104H,BM6105AFW-LBZ,BD7682F-LB-EVK-401,BD7682F-LB-EVK-402,RGT16NL65D,BM60213FV-C,RJ1L08CGN,R6511END3,R6509KNJ,BM2P101FK,BM1Q011FJ,RJ1G08CGN,BD7683FJ-LB,SIR-34ST3F,RGS SERIES,R6004JNX,RPI-0451E,R6504END3,R6509KNX,R6025JNZ4,SIM-040ST,RGT40NS65D,SIR-563ST3F,BM2P101EK,R6007JND3,R8000KNX SERIES,R65XXKNX,RSDTXXNS,SIR-341ST3F,R65XXENX SERIES,RS1G180MN,BM1P10CFJ,R6504ENX,UCR,GMR320,LTR100,R6504ENJ,RB088BM200,BS2130F-G,RBLQ,R6018JNJ,R6006JNX,SIR-56ST3F,R6520KNX,BD9D300MUV,R6520KNJ,BSM400D12P3G002,BM2P104EF,BM2P104EK,BSM180D12P3C202,LTR50,BD9G500EFJ-LA,BM64374S-VA,RPI-0226,BM2SCQ123T-EVK-001,R6515ENJ,BD9GXXX SERIES,RMS332SD-012,RMS332SD-011,RGT8NL65D,RMS332SD-010,RS1G300GN,BM2P104HF,GMR50,LTR,BM64375S-VC,BDJXXX0AHFV SERIES,GMR100,VSXXVUA1LAM SERIES,BM1P102FJ,R6530ENZ4,BD9E304FP4-LBZ,BD768XFJ-LB,RGT SERIES,RGT20NS65D,BM6108FV-LB,R6515ENX,R6535KNZ4,BD2320EFJ-LA,BM60212FV-C,R6530KNX,R6006JNJ,R6520KNZ4,BM1Q021FJ,R8003KND3,BM61S40RFV-C,BM2P103EK,R6524ENZ4,RB218BM200,RPI-0125,BD7685FJ-LB

选型指南 - ROHM - Ver.1.0 - 12.2020 PDF 英文下载

BM1050AF-G Quasi-Resonant Control DC/DC converter and Power Factor Correction converter IC for AC/DC Converter Datasheet

型号- BM1050AF,BM1050AF-G,BM1050AF-GE2

数据手册 - ROHM - Rev.003 - 10.Apr.2015 PDF 英文下载

BM2P060MF-Z BM2P061MF-Z BM2P063MF-Z PWM Type DC/DC Converter IC With Integrated Switching MOSFET

型号- BM2P060MF,BM2P061MF,BM2P060MF-Z,BM2P063MF,BM2P063MF-Z,BM2P06XMF-ZE2,BM2P061MF-Z,BM2P061MF-ZE2,BM2P063MF-ZE2,BM2P060MF-ZE2

数据手册 - ROHM - Rev.001 - 21.Apr.2021 PDF 英文下载

AC/DC Drivers Quasi-Resonant Control type DC/DC Converter IC BM1Q021FJ /BM1Q041FJ

型号- BM1Q041FJ,BM1Q021FJ-E2,BM1Q041FJ-E2,BM1Q0X1FJ-E2,BM1Q021FJ

数据手册 - ROHM - Rev1 - 27.Sep.2016 PDF 英文下载

BM2PXX3F Series AC/DC Drivers PWM type DC/DC converter IC Included 650V MOSFET Datasheet

型号- BM2PXX3F-GE2,BM2P093F,BM2PXX3F SERIES,BM2PXX3F,BM2P053F

数据手册 - ROHM - .Rev.010 - 29.Nov.2018 PDF 英文下载

Primary/Secondary DC/DC Converter IC series and Reference Design

型号- REFRPT001,BD9P235MUF-C,BD9S110NUX-C,BD9P135MUF-C,BD9P135EFV-C,BD9P235EFV-C,BD9S200MUF-C,BD9S300MUF-C,BD9S400MUF-C,BD9S201NUX-C,BD9P205EFV-C,BD9P SERIES,BD9S,BD9S111NUX-C,BD9S SERIES,BD9S100NUX-C,BD9P105EFV-C,BD9P,BD9S000NUX-C,BD9P205MUF-C,BD9P105MUF-C,BD9P255MUF-C,BD9P155EFV-C,BD9P155MUF-C,BD9P255EFV-C

商品及供应商介绍 - ROHM - 03.2021 PDF 英文下载