【经验】根据电源IC的功率损耗进行热计算的方法

时间： 2019-11-16 来源：ROHM

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本文将介绍根据求得的电源IC的功率损耗进行热计算的方法，并判断在实际使用条件下是否在最大额定值范围内。原本之所以求损耗（效率），是为了确认最终IC芯片和晶体管芯片的结温Tj未超出最大额定值，并确认电源电路在要求条件下准确且安全地工作。

封装选型时的热计算示例 1

为方便起见，下面给出计算损耗时的条件和损耗的计算结果。

以输出段的MOSFET内置型IC为例，相关内容见图中蓝色所示部分。电感除外（因为电感是外置的）。

电源IC的功率损耗总和

如表中所示，输出电流IO为2A。工作环境温度Ta为最高85℃。在这样的条件下，电源IC的封装考虑采用HTSOP-8封装。HTSOP-8是标准的表面贴装型SO封装，是背面露出金属板的封装类型。

热计算说到底是求IC芯片的结温Tj。在IC的技术规格书中，多会提供容许损耗曲线图，容许损耗最终也会归结到Tj。下面是Tj的计算公式。不难看出这个公式并非特殊的公式，而是普遍的用来表示Tj的公式。

Tj＝Ta＋θja×P

Ta：环境（周围）温度 ℃，θja：接合部－环境间热阻 ℃/W，P：消耗（损耗）功率 W

热阻值是计算所需的信息。多数情况下会在IC的技术规格书的条件中有提供。下表是从ROHM的一款IC的技术规格书中摘录的。此外，这里还提供了这些条件下的容许损耗曲线图。

从所提供的内容可以看出，热阻θja因安装PCB板的层数而异。本文中的假设前提为1层PCB，因此使用“条件①”来计算。

Tj＝Ta＋θja×P　⇒　85℃＋189.4℃/W×1.008W＝275.9℃

Tjmax为150℃，因此从计算结果看严重不符合。先在公式中试着代入数值进行了计算，在列举条件过程中就可以看出其结果。在容许损耗曲线图中，一个损耗1.008W的线已经超出了①条件下的容许范围。另外，Ta＝85℃的线与①的交点，表示①的条件下的容许功率，可以一目了然地看出，1.008W已经远远超过这个范围。进一步讲，当知道θja为189.4℃/W时，损耗1.008W的话仅发热量就能超过Tjmax的150℃限值，这种条件下是无法实际使用的，这在计算前就已经看出来了。

不过，通过该计算可以明白“将什么、做到怎样的程度、如何做比较好”，因此还是有必要计算的。

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本文由宝丁转载自ROHM，原文标题为:封装选型时的热计算示例 1，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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型号- BD7673AG,BU90006GWZ,BAJ0CC0FP,BA18JC5T,BD18KA5W,BD1CIC0W,BD433S5EFJ-C,BD18HA3WEFJ,BD7602GUL,BU27TA2WHFV,BD82001FVJ-LB,BAJ2CC0WT,BD50FA1MG-M,BD9109FVM-LB,BD15HA5WEFJ,BDJ0GA3VEFJ-M,BA70BC0FP,BD50FD0WHFP,ML7751,ML7750,BM61M41RFV-C,BD9C301FJ,BD15KA5WFP,BM2SC123FP2-LBZ,BD80C0AWFP2-C,BD50GA3WNUX,BD9P135MUF-C,BD25IC0VEFJ-LB,BD46EXX1G-M,BAJ6DD0,BD30IC0V,BU30TA2WNVX,BD71L4LG-1,BD30IC0W,BD95821MUV,BA50JC5T,BD70HC0WEFJ,BD9E303UEFJ-LB,BD8158FVM,BU23TD2W,BA25BC0WFP,BD70HA5VEFJ-M,BD53XXG-2M SERIES,BU32TD3WG,BM6112FV-C,BD87A34FVM,BD30GA3V,BM2P26CK-Z,BD30GA3W,BD90FD0W,BD52XXG-2C,BM2P10B3J-Z,BD6046GUL,BD82006FVJ-M,BD10KA5WFP,BA03CC0FP,BUS1DJC0GWZ,BD450S2WFP3-C,BU30TD2W,BU15JA2VG-C,BM2P0361K-Z,BM2P063EK-LBZ,BD18HC0VEFJ-LB,BD2066FJ-LB,BD450S5FP2-C,BAXXDD0W,BA17805FP,BD8313HFN,BU30TD3W,BD22621G-M,BD80GA3WNUX,BDJ2FC0WFP,BD33HA5VEFJ-M,BD2201GUL,BD6529GUL,BD750L5FP-C,BD82039FVJ,BD9D322QWZ,BD52XXG-1 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SERIES,BD25IC0W,BDJ2FC0W,BD00C0AWFP2-C,BA3259HFP,BM2P101X-Z,BA08CC0WFP,BD00FA1WEFJ,BD46EXX5G-M SERIES,BM2P054F,BDJ0GA3WNUX,BD7691FJ,BD82004FVJ-M,BD50FC0FP,BM2P060MF-Z,BD15HA5MEFJ-LB,BD50FC0W,BD60FC0WFP,BD48LXXG,BD25GA3W,BA50BC0WFP,BD18HA5WEFJ,BD9060F-C,BA15DD0WT,BA33BC0,BD2051AFJ,BA17809CP,BD6042GUL,BD35395FJ-M,BD80C0A,BD00FC0WFP,BD70GA3WEFJ,BHXXRB1WGUT,BD80FC0WEFJ,BD2266G-M,BM6101FV-C,BD15FD0WHFP,BD80C0AFP-C,BD7690FJ,BD50C0AHFP-C,BDJ0GA3MEFJ-M,BD7684FJ-LB,BAJ0BC0,BA70BC0WT,BA08CC0FP,BDXXIA5,BD50C0AFP-C,BU25TD3WG,BD99950MUV,BM2P0151-Z,BD48EXXG SERIES,BM61S41RFV-C,BU32TA2WHFV,BD95601MUV-LB,BH26M0AWHFV,BD50FC0WEFJ,BU2FSA4WGWL,BM1P067FJ,BD81010MUV,BD9S201NUX-C,BD71L3SHFV,BD15HC5WEFJ,BD15HA3MEFJ-M,BD90302NUF-C,BU6652NUX,BD6528HFV,BD82032FVJ,BDXXIC0,BD00GC0WEFJ,BD9862MUV,BD52W03G-C,BD48W00G-C,BH15M0AWHFV,BU30JA2DG-C,BD91361MUV,BD33GC0WEFJ,BDJ0GA3WEFJ,BUXXSA5WGWZ,BM2P091F,BA33DD0T,BD37A19FVM,BA33DD0W,BD00IA5WEFJ,BD733L2FP-C,BD30KA5FP,BM81100MUW,BDJ2GA3W,BA33D15HFP,BA30BC0,BD2233G,BM2P092F,BD90C0AFP2-C,BU34TD3WG,BH30M0AWHFV,BD50C0AWFP-C,BD45XX1G SERIES,BA00CC0W,BD30GC0WEFJ,BM1Z103FJ,BD9060HFP-C,BD9A302QWZ,BD82044FVJ,BH2JNB1WHFV,BD9G341AEFJ-LB,BD30HC0MEFJ-LB,E3800系列,BM2P093F,BD00HC5MEFJ-LB,BM2P131E-Z,BD2232G,BD47XXG,BAJ0BC0W,BA30JC5T,BD18IC0WEFJ,BAJ0BC0T,BA80BC0T,BU42XXF,BA80BC0W,BU42XXG,BA178M05FP,BD800M5WFPJ-C,BD50GA3W,BD99A41F,BD12KA5WFP,BU28TD2WNVX,BD33IA5WEFJ,BM2P094F,BD49KXXG,BU13TD3,BH30RB1WGUT,BU13TD2,BA15DD0W,BD90C0AWHFP-C,BD6538G-LB,BAXXCC0,BD50HA5WEFJ,BA08CC0,BA15DD0T,BU33UV7NUX,BD433M2FP3-C,BD733L2FP3-C,BM2P121X-Z,BM2P095F,BU45KXX4G SERIES,BA18BC0FP,BD30IA5MEFJ-LB,BU30JA2VG-C,BD8961NV,BD15HA5MEFJ-M,BD95830MUV,BU45LXX2G,BD45XX2G,BA17805CP,BA17818FP,BD9137MUV,BD70GA5WEFJ,BD48EXXG,BA25BC0,BD18GC0WEFJ,BD25IA5WEFJ,BD30FC0WFP,BD30GA3MEFJ-M,BD4XXM5W,BA00CC0WFP,BD9P205EFV-C,BD9596BMWV,BD8132FV,BD25HA5MEFJ-M,BD9536FV,BD8963EFJ,BD9326EFJ,BU28TD3WG,BD90GC0MEFJ-M,BD4XXM2W,BD50C0AW,BU45LXX4G,BD50GA3MEFJ-M,BD9B300MUV,BD80GC0MEFJ-M,BD15GA5MEFJ-LB,BD45XX5G,BU33SD2MG-M,BA178M18FP,BA25BC0FP,BD18GA5MEFJ-LB,BA17818CP,BA178M05CP,BU49XXG,BU49XXF,BDJ0GA5MEFJ-M,BHXXPB1WHFV,BU29TA2W,BD9227F,BM2P201W-Z,BD49EXXG-M,BD3575YFP-M,BDJ0GA3W,BD25KA5W,BA50BC0T,BD70GC0MEFJ-LB,BA178M18CP,BH29NB1WHFV,BU21TD3,BD30IC0MEFJ-M,BU21TD2,BU18TD3WG,BU28TA2WNVX,BD82024FVJ,BU33SA4WGWL,BD3551HFN,BU27TA2W,BD60GC0MEFJ-M,BM2P209TF,BD9B304QWZ,BU18JA2VG-C,BU33TD2,BU43XXFVE,BDJ0GC0MEFJ-LB,BA05CC0FP,BD33FD0W,BD9615MUV-LB,BM81028AMWV,BDJ2GA5MEFJ-LB,BU33JA2DG-C,BA17809FP,BM2P151X-Z,BD50FA1FP3,BU90002GWZ,BA30E00WHFP,BU33TD3,BA9741FS,BD15GA3WNUX,BA178M09FP,BD9573MUF-M,BU11TD3WG,BD81870EFV-M,BM1

2022/5/13 - ROHM - 选型指南代理服务技术支持现货查询批量订货

ROHM（罗姆）电源管理IC选型指南（中文）

目录- 线性稳压器开关稳压器开关稳压器(系统电源) 电压检测器(复位IC)系列

型号- BD7673AG,BU90006GWZ,BAJ0CC0FP,BD81026MUV,BA18JC5T,BD52XXFVE SERIES,BA78M07CP,BD1CIC0WHFV,BD18KA5W,BD1CIC0W,BU43XXG SERIES,BH25RB1WGUT,BD18HA3WEFJ,BD7602GUL,BU27TA2WHFV,BD82001FVJ-LB,BAJ2CC0WT,BD12IC0MEFJ-LB,BD50FA1MG-M,BD9109FVM-LB,BD15HA5WEFJ,BD50HC5MEFJ-C,BA70BC0FP,BD50FD0WHFP,BD70GA5MEFJ-LB,BD50HC5MEFJ-M,BM61M41RFV-C,BD9C301FJ,BU48XXF SERIES,BD15KA5WFP,BD30GA5MEFJ-M,BD15GC0MEFJ-LB,BD00GA5MEFJ-LB,BD80C0AWFP2-C,BD50GA3WNUX,BD9P135MUF-C,BD18HC0MEFJ-M,BD46EXX1G-M,BA78M07FP,BU30TA2WNVX,BD71L4LG-1,BA7808CP,BD30IC0W,BD95821MUV,BA50JC5T,BD70HC0WEFJ,BD00GC0MEFJ-M,BD8158FVM,BD49XXFVE SERIES,BA25BC0WFP,BD12IC0WEFJ,BD18HA3MEFJ-LB,BD53XXG-2M SERIES,BU32TD3WG,BM6112FV-C,BD87A34FVM,BM2P26CK-Z,BD30GA3W,BD90FD0W,BD52XXG-2C,BD6046GUL,BD47XXG SERIES,BD82006FVJ-M,BD10KA5WFP,BA03CC0FP,BUS1DJC0GWZ,BD433M5FP-C,BD18HC5MEFJ-M,BU15JA2VG-C,BD2066FJ-LB,BAXXDD0T,BAXXDD0W,BA17805FP,BD8313HFN,BD22621G-M,BD80GA3WNUX,BDJ2FC0WFP,BH31NB1WHFV,BD2201GUL,BD6529GUL,BD750L5FP-C,BD82039FVJ,BD9D322QWZ,BD18IA5MEFJ-M,BM2P151S-Z,BD60HA5MEFJ-LB,BH29M0AWHFV,BD95514MUV,BA70BC0,BD25KA5WF,BD70522GUL,BU18JA2DG-C,BD9S200MUF-C,BD33HA5MEFJ-LB,BD3573YFP-M,BD80FD0WHFP,BD9E303EFJ-LB,BD25HA3MEFJ-M,BUXXSD2MG-M,BD4271HFP-C,BD37210AMUV,BD45XX1G,BD00HA5MEFJ-M,BD52XXG-2M,BD30GA3MEFJ-LB,BD9701FP,BM1050AF,BD25GA5MEFJ-LB,BD8311NUV,BH28RB1WGUT,BU2ATD2WNVX,BU18SA4WGWL,BU32TD2WNVX,BD3539FVM,BD10IC0WHFV,BU12JA2MNVX-C,BAXXBC0,BU48XXFVE SERIES,BH18M0AWHFV,BD33C0AWFP2-C,BD9161FVM,BD18KA5WF,BD9355MWV,BD45EXX2G-M,BA17810FP,BD90C0AWFP-C,BM2P0361-Z,BD82040FVJ,BA90BC0,BD15IC0WEFJ,BD9B100MUV,BA178M07,BA178M06,BA178M09,BA178M08,BU34DV7NUX,BU1JTD2WNVX,BD42530EFJ-C,BD9104FVM,BD50GC0MEFJ-LB,BDJ6FD0WHFP,BA178M10,BA178M12,BA178M15,BH33RB1WGUT,BA178M10FP,BA178M18,BU46KXX2G SERIES,BD9S000NUX-C,BD90GA3MEFJ-LB,BD70FC0W,BM2P0363F,BD2069FJ-M,BD450M5WFP2-C,BD7F100HFN-LB,BD48XXFVE,BUXXTD3WG SERIES,BA178M20,BD8317GWL,BD9035AEFV-C,BA178M24,BD9P255EFV-C,BM2P051F,BD60GC0MEFJ-LB,BD3508MUV,BU46KXX2G,BD33GC0MEFJ-M,BU10TD2WNVX,BA7812FP,BA178M10CP,BD00FC0W,BM2P101EK-LBZ,BDJ2GC0WEFJ,BU30SA4WGWL,BD42500G-C,BD15FD0W,BA05CC0WT,BA17810CP,BA9743AFV,BA25JC5T,BD9C401EFJ,BU25TA2WNVX,BA33DD0WT,BH6062GW,BD30IC0MEFJ-LB,BD22641G-M,BD9B600MUV,BM2P052F,BM2P159PF,BD50HC5WEFJ,BD37A41FVM,BD87A29FVM,BD42540FJ-C,BU2JTD3WG,BA00CC0WT/,BD33C0AFP2-C,BM2P053F,BD33GC0MEFJ-LB,BD9874CP-V5,BU46KXX4G,BD49EXXG SERIES,BU21TD2WNVX,BD45EXX5G-M SERIES,BD25IC0W,BDJ2FC0W,BD00C0AWFP2-C,BA3259HFP,BM2P101X-Z,BA08CC0WFP,BD00FA1WEFJ,BD46EXX5G-M SERIES,BM2P054F,BDJ0GA3WNUX,BD7691FJ,BD82004FVJ-M,BD50FC0FP,BD15HA5MEFJ-LB,BD50FC0W,BD60FC0WFP,BD48LXXG,BD25GA3W,BA50BC0WFP,BD18HA5WEFJ,BD9060F-C,BA15DD0WT,BA33BC0,BD2051AFJ,BA17809CP,BD6042GUL,BD35395FJ-M,BD80C0A,BD00FC0WFP,BD70GA3WEFJ,BHXXRB1WGUT,BD80FC0WEFJ,BD2266G-M,BM6101FV-C,BD15FD0WHFP,BD80C0AFP-C,BD82020FVJ,BD7690FJ,BD50C0AHFP-C,BDJ0GA3MEFJ-M,BD7684FJ-LB,BAJ0BC0,BA70BC0WT,BA7812CP,BA08CC0FP,BDXXIA5,BD50C0AFP-C,BU25TD3WG,BD99950MUV,BM2P0151-Z,BD48EXXG SERIES,BM61S41RFV-C,BU32TA2WHFV,BD95601MUV-LB,BH26M0AWHFV,BD50FC0WEFJ,BU2FSA4WGWL,BM1P067FJ,BD81010MUV,BD9S201NUX-C,BD71L3SHFV,BD15HC5WEFJ,BD15HA3MEFJ-M,BD90302NUF-C,BU6652NUX,BD6528HFV,BD82032FVJ,BDXXIC0,BD00GC0WEFJ,BD9862MUV,BD52W03G-C,BH15M0AWHFV,BU30JA2DG-C,BD91361MUV,BD33GC0WEFJ,BDJ0GA3WEFJ,BUXXSA5WGWZ,BM2P091F,BA33DD0T,BD37A19FVM,BA33DD0W,BD00IA5WEFJ,BD733L2FP-C,BD30KA5FP,BM81100MUW,BDJ2GA3W,BA33D15HFP,BA30BC0,BD2233G,BM2P092F,BD90C0AFP2-C,BU34TD3WG,BH30M0AWHFV,BD50C0AWFP-C,BD45XX1G SERIES,BA00CC0W,BD30GC0WEFJ,BM1Z103FJ,BD9060HFP-C,BD9A302QWZ,BD82044FVJ,BA78M20CP,BH2JNB1WHFV,BD9G341AEFJ-LB,BD30HC0MEFJ-LB,BM2P093F,BD00HC5MEFJ-LB,BM2P131E-Z,BD2232G,BD47XXG,BAJ0BC0W,BA30JC5T,BD18IC0WEFJ,BAJ0BC0T,BA80BC0T,BU42XXF,BA80BC0W,BU42XXG,BA178M05FP,BD800M5WFPJ-C,BD50GA3W,BD99A41F,BD12KA5WFP,BU28TD2WNVX,BD33IA5WEFJ,BM2P094F,BD49KXXG,BA78M20FP,BH30RB1WGUT,BA15DD0W,BD90C0AWHFP-C,BD6538G-LB,BAXXCC0,BD50HA5WEFJ,BA08CC0,BA15DD0T,BU33UV7NUX,BD433M2FP3-C,BD733L2FP3-C,BM2P121X-Z,BM2P095F,BU45KXX4G SERIES,BA18BC0FP,BD30IA5MEFJ-LB,BU30JA2VG-C,BD8961NV,BD15HA5MEFJ-M,BD95830MUV,BU45LXX2G,BD45XX2G,BA17805CP,BA17818FP,BD9137MUV,BD70GA5WEFJ,BD48EXXG,BA25BC0,BD18GC0WEFJ,BD30FC0WFP,BD25IA5WEFJ,BD30GA3MEFJ-M,BD4XXM5W,BA00CC0WFP,BD9P205EFV-C,BD9596BMWV,BD8132FV,BD25HA5MEFJ-M,BD9536FV,BD8963EFJ,BD9326EFJ,BU28TD3WG,BD90GC0MEFJ-M,BD4XXM2W,BD50C0AW,BU45LXX4G,BD50GA3MEFJ-M,BD9B300MUV,BD80GC0MEFJ-M,BD15GA5MEFJ-LB,BD45XX5G,BU33SD2MG-M,BA178M18FP,BA25BC0FP,BA17818CP,BA178M05CP,BD18GA5MEFJ-LB,BA78M15FP,BU49XXG,BU49XXF,BDJ0GA5MEFJ-M,BHXXPB1WHFV,BU29TA2W,BD9227F,BD49EXXG-M,BD3575YFP-M,BDJ0GA3W,BD25KA5W,BA50BC0T,BD70GC0MEFJ-LB,BA178M18CP,BH29NB1WHFV,BD30IC0MEFJ-M,BU18TD3WG,BU28TA2WNVX,BS2130F-G,BD82024FVJ,BU33SA4WGWL,BD3551HFN,BD60GC0MEFJ-M,BU27TA2W,BM2P209TF,BD9B304QWZ,BA7807CP,BU18JA2VG-C,BU43XXFVE,BH6173GUL,BA05CC0FP,BDJ0GC0MEFJ-LB,BD33FD0W,BD9615MUV-LB,BM81028AMWV,BA17809FP,BDJ2GA5MEFJ-LB,BU33JA2DG-C,BM2P151X-Z,BD50FA1FP3,BA78M24CP,BU90002GWZ,BA30E00WHFP,BD15GA3WNUX,BA9741FS,BA178M09FP,BA78M24FP,BU11TD3WG,BD81870EFV-M,BM1Z001FJ,BM60212FV-C,BU18SD5WG,BU49XXG SERIES,BA90BC0WT,BU1CTD2WNV

2021 - ROHM - 选型指南代理服务技术支持现货查询批量订货

【IC】ROHM发售4款适用于工业电源的SOP封装通用AC-DC控制器IC，配备高精度欠压保护功能

罗姆开发出PWM控制方式FET外置型通用控制器IC，非常适用于工业设备的AC-DC电源。目前已有支持各种功率晶体管的4款新产品投入量产，包括低耐压MOSFET驱动用的“BD28C55FJ-LB”、中高耐压MOSFET驱动用的“BD28C54FJ-LB”、IGBT驱动用的“BD28C57LFJ-LB”以及SiC MOSFET驱动用的“BD28C57HFJ-LB”。

2024-08-23 - 产品代理服务技术支持现货查询批量订货

罗姆的SoC用PMIC被无晶圆厂综合性半导体制造商Telechips的新一代座舱电源参考设计采用

罗姆生产的SoC用PMIC被无晶圆厂车载半导体综合制造商Telechips的新一代座舱用SoC“Dolphin3”和“Dolphin5”为主的电源参考设计采用。该参考设计计划用于欧洲汽车制造商的座舱，这种座舱预计于2025年开始量产。

2024-11-29 - 原厂动态代理服务技术支持现货查询批量订货

【产品】8.00×8.00×1.00mm电源管理IC BD2670，专为Intel®云书和二合一平板的下一处理器电源结构

ROHM的BD2670MWV电源管理IC（PMIC）采用了最适合用于Intel®公司推广的云书以及二合一平板的下一代处理器的电源结构、小型封装，非常有助于应用的小型化、薄型化，支持Apollo Lake所需各种电源，搭载功率控制逻辑，解析并可控制PMIC内部。

2018-08-19 - 新产品代理服务技术支持现货查询批量订货

System Power Supply ICs for TVs Built-in FET Synchronous Rectification Type DC/DC converters H3RegTM Type BD95830MUV

型号- BD95830MUV

2011.05 - ROHM - 数据手册 - Rev.B 代理服务技术支持现货查询批量订货

解决电源IC困扰的ROHM先进电源技术“Nano”

型号- BD70522GUL

2023/10/18 - ROHM - 技术文档代理服务技术支持现货查询批量订货查看更多版本

Power Supply IC Series for TFT-LCD Panels Multi-Channel System Power Supply IC BM81028AMWV

型号- BM81028AMWV-E2,BM81028AMWV

12.May.2015 - ROHM - 数据手册 - Rev.003 代理服务技术支持现货查询批量订货

ROHM开发出符合功能安全标准“ISO26262“的下一代车载摄像头模块用电源管理IC

型号- BD86852MUF-C,BD868D0MUF-C,BD868C0MUF-C,BD868XXMUF-C,BD868B0MUF-C,BD868A0MUF-C,BD868C1MUF-C

2022年5月20日 - ROHM - 商品及供应商介绍代理服务技术支持现货查询批量订货

升压电源关断时对输出电压的影响及对策

在本文中，ROHM将分“二极管整流升压型DC-DC转换器”、“同步整流升压型DC-DC转换器”、“流经电压设置电阻的电流造成的待机电流消耗”和“带背栅控制功能的同步整流方式”几部分，来介绍升压电源关断时对输出电压的影响及对策。

2024-11-14 - 技术探讨代理服务技术支持现货查询批量订货

【选型】ROHM（罗姆）车载用稳压器选型指南（英文）

目录- Company Profile Types and Features of Automotive Power Supply ICs Switching Regulators Linear Regulators Manufacturing Introduction

型号- BDXXIXXMEFJ-M,BD800M5WHFP-C,BD4269EFJ-C,BD9901XEFV-M SERIES,BD99010EFV-M,BD9016KV-M,BD9PXX5EFV-C,BD50C0AWHFP-C,BD90C0A□□□-C,BDXXHXXMEFJ-M SERIES,BD80C0AWFP-C,BD80C0AFP-C,BD33IC0MEFJ-C,BDXXHXXMEFJ-C SERIES,BD9901XEFV-M,BD50C0AWFP2-C,BD50C0AHFP-C,BD50FA1MG-M,BD9S100NUX-C,BD9S201NUX,BD433M2WFP3-C,BD50C0AFP-C,BUXXJA2MNVX-C SERIES,BD9SD11NUX,BD9P205MUF-C,BD9P155EFV-C,BD50C0AFP2-C,BDXXIXXMEFJ-C,BDXXHA3MEFJ-M,BD9SX00NUX-C,BD00JC0MNUX-M,BD90610EFJ-C,BD90C0AW□□□-C,BD750L2EFJ-C,BDXXGA5MEFJ-M,BD820F50EFJ-C,BDXXGXXMEFJ-M SERIES,BD80C0AWFP2-C,BD9S110NUX-C,BD9P135MUF-C,BD906X0HFP-C,BD9S400MUF-C,BD33C0AWFP-C,BD9S201NUX-C,BD90302NUF-C,BDXXHA3MEFJ-C,BD80C0AHFP-C,BD9P255MUF-C,BDXXGA3MEFJ-C,BD00C0AW□□□-C,BD433M5WFP2-C,BD750L5EFJ-C,BDXXGXXMEFJ-C,BD750L2FP3-C,BD733L2FP-C,BD80C0AWHFP-C,BD433M5□□□-C,BD433M5WFPJ-C,BD433M5FP-C,BD80C0AFPS-C,BD906X0EFJ-C,BD90C0AFP2-C,BDXXGA3MEFJ-M,BD42530FPJ-C,BD450M2FP3-C,BD50C0AWFP-C,BD450M2WFP3-C,BD90620EFJ-C,BD9SXXXNUX-C,BDXXIXXMEFJ-C SERIES,BUXXJA2DG-C,BD00GXXMEFJ-C,BD42530FP2-C,BD33C0A□□□-C,BD9015KV-M,BD733L5□□□-C,BDXXGXXMEFJ-M,BD9SX00MUF-C SERIES,BD357XY SERIES,BD750L5FP-C,BD9P235MUF-C,BD9P235EFV-C,BD450MX□□□-C,BD9S200MUF-C,BD800M5WFP2-C,BD906XHFP-C,BD90C0AHFP-C,BD50C0AW□□□-C,BD433M2WEFJ-C,BD90C0AWHFP-C,BD906X0EFJ-C SERIES,BUXXSD2MG-M,BD9PXX5MUF-C SERIES,BD33C0AFP-C,BD4271FP2-C,BD4271HFP-C,BD433M5W□□□-C,BD433M2FP3-C,BD90640EFJ-C,BD750L5□□□-C,BD90C0AWFP2-C,BDXXHA5MEFJ-M,BD450M5□□□-C,BD733L2FP3-C,BDXXIC0MEFJ-M,BD357XY,BD9P1X5EFV-C,BD750LX□□□-C,BD9P1X5MUF-C,BD42530□□□-C,BD733LX□□□-C,BD99011EFV-M,BD9PXX5EFV,BD433M2W□□□-C,BD9S012NUX-C,BD450M5WFPJ-C,BD906X0HFP-C SERIES,BD9P205EFV-C,BD90610HFP-C,BD433M5FP2-C,BD9S111NUX-C,BD9PXX5MUF,BDXXHC0MEFJ-M,BD33C0AWFP2-C,BD9PXX5MUF-C,BD433M2□□□-C,BD9PXX5,BD3650FP-M,BD90C0AWFP-C,BD733L2□□□-C,BD9P155MUF-C,BDXXHXXMEFJ-M,BD9SX00MUF-C,BD4271□□□-C,BD42530EFJ-C,BD9P135EFV-C,BD33C0AWHFP-C,BD9PXX5EFV-C SERIES,BD9S300MUF-C,BD90C0AFP-C,BD433MX□□□-C,BD800M5W□□□-C,BD450M5FP2-C,BD9S000NUX-C,BD42754□□□-C,BD8P250MUF-C,BD750L2FP-C,BD80C0AFP2-C,BD450M5WFP2-C,BD9P233MUF-C,BDXXHC5MEFJ-M,BDXXHXXMEFJ-C,BD9035AEFV-C,BD9P255EFV-C,BD9SX1XNUX-C,BD750L2□□□-C,BD450M5FP-C,BD00C0AWFP-C,BDXXGC0MEFJ-M,BD9PXX5 SERIES,BD450M2W□□□-C,BD42500G-C,BD425X0□□□-C,BD7XXLX□□□-C SERIES,BD425X0□□□-C SERIES,BD90620HFP-C,BD80C0AW□□□-C,BD00C0AWHFP-C,BUXXJA2MNVX-C,BDXXIXXMEFJ-M SERIES,BD33C0AW□□□-C,BD42540FJ-C,BDXXIA5MEFJ-M,BD450M2EFJ-C,BD9P2X5EFV-C,BD33C0AFP2-C,BD33C0AHFP-C,BD9P2X5MUF-C,BD800M5□□□-C,BD50C0A□□□-C,BD4269FJ-C,BD7XXLX□□□-C,BD4269□□□-C,BD00C0AWFPS-M,BD733L2EFJ-C,BD450M2WEFJ-C,BD90640HFP-C,BD42754FP2-C,BD00C0AWFP2-C,BUXXJA2VG-C,BD906XHFP-C SERIES,BD9SXXXNUX-C SERIES,BD733L5FP-C,BD80C0AWEFJ-C,BD9P105EFV-C,BD50HC0MEFJ-C,BD450M5W□□□-C,BDXXGXXMEFJ-C SERIES,BD450M2□□□-C,BD00IA5MHFV-M,BD9P105MUF-C,BD906X0EFJ,BD9V100MUF-C,BD42754FPJ-C,BD80C0A□□□-C,BD433M2EFJ-C

10.2020 - ROHM - 选型指南 - Ver.3.2 代理服务技术支持现货查询批量订货

【IC】罗姆电源IC选用攻略！助力打造更高效、更可靠的电源系统

作为全球知名的半导体制造商，罗姆凭借其卓越的产品和技术，在电源管理领域扮演着举足轻重的角色。本文将为各位工程师带来罗姆在电源管理领域的技术及产品介绍。罗姆的电源管理IC包含线性调节器、开关调节器、电源管理开关IC及系统电源等多个种类。

2024-10-30 - 产品代理服务技术支持现货查询批量订货

【产品】多通道电源IC BD49101ARFS-M，内置2路DC/DC、5个稳压器、适用于汽车音响和信息娱乐系统

罗姆(ROHM)株式会社是全球最知名的半导体厂商之一，由其推出的BD49101ARFS-M多通道电源IC，已通过AEC-Q100认证（3级），可为汽车音响系统提供所有必需的电源电压，其内置两个开关电源（DC/DC），五个稳压器（REG）和一个高边开关，该芯片可为所有系统提供所需电压，包括MCU，CD，调谐器，USB，照明，音频电路等，适用于汽车音响和信息娱乐领域。