低边开关的最大电流和可输出的最大输出电流
本文关键要点
升压型DC-DC转换器的最大输出电流不仅仅取决于低边开关的电流容量。升压比、转换效率和电感纹波电流等因素会导致最大输出电流大大低于低边开关的电流容量。
在选择升压型DC-DC转换器时,需要根据所需的输出电流和升压比等使用条件来求出低边开关所需的开关电流值,然后再选择产品。
低边开关不仅“输入电流值”这个参数很重要,还需要具备支持流过电感纹波电流引起的电流波动峰值的能力。
目录
低边开关的最大电流和可输出的最大输出电流
低边开关所需的最小开关电流容量探讨
首先来了解“低边开关的最大电流和可输出的最大输出电流”。
低边开关的最大电流和可输出的最大输出电流
电感和升压比对最大输出电流的影响
输入输出电压和器件常数对最大输出电流的影响
低边开关的最大电流和可输出的最大输出电流
对于降压型DC-DC转换器而言,低边开关的最大电流开关能力是非常重要的参数。例如,开关容量为1A的产品,需要能够承受高达1A的电感峰值电流。但是,这是输入端的电流驱动能力,升压后的最终输出电流取决于升压比和转换效率,会大幅下降。
升压型DC-DC转换器有多种控制方式,在本系列文章中,将介绍采用电流模式固定频率PWM控制方式、升压开关的最大电流由电流限制功能来决定的产品的最大输出电流。
低边开关所需的最小开关电流容量探讨
在选择升压型DC-DC转换器时,首先需要根据所需的输入电压、输出电压和输出电流规格来估算低边开关需要多大电流驱动能力。
假设从VIN=3.3V升压并达到VOUT=5V/IOUT=1A,在这个条件下,根据输出要求得出输出功率POUT=VOUT×IOUT=5V×1A=5W。当效率η为90%时,输入功率PIN=POUT÷η=5W÷0.9=5.56W,输入电流IIN=PIN÷VIN=5.56W÷3.3V=1.68A
*效率η会随着输入电压、输出电压、电流值、所用电感器等因素而变化。
升压型DC-DC转换器对该1.68A的直流输入电流进行开关,但输入电流IIN是根据电感纹波电流IRIPPLE而增减的电流平均值。
流过开关的峰值电流ISWP是输入电流加上一半的电感纹波电流值后的电流。当电感纹波电流为最大输入电流的30%时,流过开关的峰值电流ISWP为:
ISWP=IIN+0.5×IRIPPLE=IIN+0.5×30%×IIN=1.15×IIN=1.15×1.68A=1.93A
因此,需要选择可对2A左右电流进行开关的低边开关产品。
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本文由JWM转载自ROHM(罗姆半导体集团公众号),原文标题为:R课堂 | 低边开关的最大电流和可输出的最大输出电流,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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描述- ROHM(罗姆)株式会社是全球最知名的半导体厂商之一,创立于1958年,总部位于日本京都市。历经半个多世纪的发展,罗姆的生产、销售、研发网络遍及世界各地。为了迅速且准确应对不断扩大的中国市场的需求,在中国构建了与罗姆日本同样的集开发、生产、销售于一体的一条龙体制。
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目录- 用于xEV的产品 用于动力传动系统&安全性的产品 用于车身&舒适度的产品 用于音频&信息娱乐系统的产品 用于ADAS的产品 用于联网汽车的产品 车载IC 罗姆IC封装 LSI封装 功率元器件 分立式元器件 无源元器件 光学元器件 型号索引
型号- RBQ20NS65A,RFN20NS6S,RR1VWM4STFTR,BM2LB300FJ-C,RF071MM2S,RSX101VYM30,DTA124TX,RFUH20NS3S,SMF26V,SMLM22WBN1CW1T,2SCR552P,RB058LAM150,SCT2系列,BD50FA1MG-M,2SC4102,RB088LAM-60,RB238NS150,SML-D12Y8W,BD3575HFP-M,BR25H128,VS17VUA1LAM,BD4XXM5FP2-C,RFUH20NS4S,BD50HC5MEFJ-M,BM61M41RFV-C,2SCR553P,BA82904YFVM-C,RSS070N05,BD30GA5MEFJ-M,BA4560YFV-M,BD80C0AWFP2-C,RB298T100,BD18HC0MEFJ-M,MD56V62161R-XXTAL42X,BD46EXX1G-M,RSS060P05,SMF24V,BR25H160,SCT3022ALHR,2SCR554P,SML-D13MW(A),BR25A512,RGPR20BM36HR,CSL1101SBAW1C,RB068L-40 81,BD00GC0MEFJ-M,RD3U041AA RD3U080AA,BA2901YFV-M,RD3P175SN,BU91R65CH-M,BD53XXG-2M SERIES,BZX84B,BZX84C,SML-D14MWA,BD52XXG-2C,RBR30NS30A,BAS40HM,BD82006FVJ-M,MD56V62161M-XXTAL42X,SCT2,SCT3,MD56V72161C-XXTAL42X,KDZLV SERIES,DTA124XX,BD433M5FP-C,BA2901YFV-C,BD18HC5MEFJ-M,SMF22V,BU15JA2VG-C,BD63030EKV-C,UMD12NFHATR,ML9213GP,SMLM22EN1T,UMH2NFHATN,BD22621G-M,SML-H12V8T,RFN20NS4S,SMLD12EN1W,RB540VM-30,BD750L5FP-C,BD18IA5MEFJ-M,RF501BM2S,MMBZ16VAL,UCR006,RB531VM-30,SMF20V,RTF016N05,BU18JA2DG-C,SML-D13MW,BD9S200MUF-C,RB168LAM150,RSX101MM-30TFTR,RB238NS-30,RFN6T2D,BD3573YFP-M,RFC02MM2S,RFN20NS3S,BD25HA3MEFJ-M,BV1LB300FJ-C,RB540VM-40,BUXXSD2MG-M,BR25A1M,UMB4NFHATN,BD4271HFP-C,UFZV SERIES,BD00HA5MEFJ-M,BD52XXG-2M,RBR2LAM30A,SML-811VTA,RB238NS-40,DTB113ZX,RBR5L30B,RBR5L30A,RBR2MM30B,RB228T150,RBR2MM30A,BU91797MUF-M,DTC143EX,DTD123TX,VS9V0UA1LAM,RBQ15BM100A,BD37034FV-M,PDZVTFTR10B,DAP222WM,SMF5V0,RD3L050SN,SML-D12U8W,RGPR50NS45HR,BV1LC085EFJ-C,BU12JA2MNVX-C,RBQ10BM100A,BD33C0AWFP2-C,RTR030N05,ML86V76580,RTL035N03,BD9SXXX系列,RBR10BM30A,BD45EXX2G-M,BD90C0AWFP-C,RTR020P02,RB058LAM-40,BU7244YFV-C,2SCR375P,DAN222WM,MMBZ12VAL,RSB12WM,BA82902YFJ-C,RB751SM-40,SML-H12M8T,PML100,BD53XXG-2C SERIES,RSX201L-30,BD42530EFJ-C,BD18362EFV-M,EDZVFHT2R2.0B,RSJ400N10,SML-D12D8W,RB058LAM-30,SML-D14VWA,BU92T101,BD4XXM2FP3-C,RUQ050N02,RF305BM6S,2SB1197K,SML-D14YW(A),BD9S000NUX-C,DTA115TX,BD2069FJ-M,RBQ10NS100A,RB451UM,RF201L2S,RBR3LAM60B,RBR3LAM60A,BD450M5WFP2-C,BSS670,DTB114GX,BD48EXXG-M SERIES,RSJ400N06,BD7XXL2FP3-C,BD9035AEFV-C,BD33GC0MEFJ-M,RB238NS100,SML-811VT,2SB1198K,RB068L-60 81,RR268MM-600,BAS40-05HM,BD1HC500FVM-C,RHK003N06,DTD123YX,BD42500G-C,RB500SM-30,RB228T100,RB168LAM-30,RFUH25TB3S,BD22641G-M,MMBZ24VAL,SCT3017ALHR,RGS00TS65EHR,SML-811UT,BD78326EFJ-M,VS22VUA1LAM,SML-Z14YT(A),BD42540FJ-C,RF201L4S,RFNL5TJ6S,DTB114EX,AG009DGQ3,VS28VUA1LAM,YDZV SERIES,SML-Z14PT(A),BD33C0AFP2-C,BU92RTF82,RB168LAM-40,RSS065N06,SML-D13WWA,UMZ8.2NUM,SML-D13FW,2SCR372P,BD45EXX5G-M SERIES,SSTA06,RFNL20TJ6S,RBR3L30B,UM6K31N,RBR3L30A,BD00C0AWFP2-C,ML9092-03,ML9092-02,BR93H,ML9092-04,RF01VM2S,UMH10NFHATN,BD46EXX5G-M SERIES,FMY1A,RBQ30NS45B,BD82004FVJ-M,RBQ30NS45A,SML-811WT,SMLMN2SB1AW,RBR10BM30AFHTL,RBR40NS60A,BD9060F-C,MR45V064B,RB058LAM-60,RFUH20NS6S,RB168LAM-60,SML-D13DW,BZX84C SERIES,RESD1CAN,US6K41,BD35395FJ-M,BD80C0A,SP8M41,BD81A44MUV-M,EMH25FHAT2R,BD16938EFV-C,BD2266G-M,BM6101FV-C,MMBZ20VAL,BD80C0AFP-C,BD50C0AHFP-C,BDJ0GA3MEFJ-M,RFN10BM6S,RB511SM-40,VS11VUA1LAM,ML9092-01,BD50C0AFP-C,RBQ10NS45A,RFN10T2D,RF101LAM2S,BM61S41RFV-C,RB088T-60,SML-D14DW,RB501VM-40,RB168L100,BD1HC500HFN-C,BAS40-06HM,2SAR553P,RF2001NS3D,BV1LC150EFJ-C,ML86V8401,RJK005N03,BD9SXXX,EMB4FHAT2R,SML-Y18U2TC,SMLM22BN1T,BD33C0AFP,BD15HA3MEFJ-M,BD90302NUF-C,BD46EXX5G-M SERIES,RB551VM-40,BD4XXM5WFP2-C,ML9098B,RF2001NS2D,2SAR574D3,SP8M51,RGS80TSX2DHR,BU30JA2DG-C,SML-D12P8W,UMB10NFHATN,RB088BM150,RB088LAM100,KDZV,RGPZ10BM40FH,2SAR552P,RR601BM4S,RB088T-40,SML-D15系列,QS8K2,SML-D15U2W,EMB2FHAT2R,RFNL15TJ6S,RD3H080SP,BD733L2FP-C,SML-Z14PTA,RSX201LAM30,BM60056FV-C,SMLMN2BCT,RB088T-30,DA228WM,RB160LAM-90,BD90C0AFP2-C,QS8J4,DTD114EX,RB168MM-60,RF1001T2D,BD50C0AWFP-C,RSJ250P10,BV1LC105FJ-C,2SAR554P,BA2902YF-C,BD9060HFP-C,RB168L150,UMZ1N,YDZV SERIES,BA2902YF-M,RGS50TSX2DHR,RBR1L30A,RF301BM2S,BSS5130,RBR15BM30A,RB168MM-30,SCS208AGHR,SML-D14DWA,BD48E23G-M,RGPR30BM40HR,CSL1001YT,MSM56V16160NP,EMH10FHAT2R,ML9488,ML9489,BA4558YF-M,BU91600FV-M,ML9484,DA228UM,BD41000FJ-C,ML9480,DTD114GX,BD90C0AWHFP-C,RB168MM-40,BD433M2FP3-C,BU97550KV-M,RBR10BM40A,RHP020N06,ML9477,RF101LAM4S,BDXXHA5MEFJ-M,ML9475,BA3474YFV-C,ML9476,BD733L2FP3-C,ML9473,ML9471,ML9472,2SARA41C,EMD3FHAT2R,ML9470,BA4560YFVM-M,RBR1MM40A,RB078BM30S,BU30JA2VG-C,BD15HA5MEFJ-M,RHU003N03,R8008ANJ,UCR100,SCT3060ALHR,RB541SM-40,BD30GA3MEFJ-M,RB088LAM150,RSS100N03,UMZ30NUM,RD3L220SN,MD56V82161A-XXTALQ2X,KDZLV,BD25HA5MEFJ-M,RB531VM-40,1SS390SMFHT2R,RB168LAM100,BD90GC0MEFJ-M,DTC143TX,SCS215AJHR,RFN2LAM6S,RB238NS-60,ML9059E,RBR5LAM30A,BD9SXXX系列,BV1HJ045EFJ-C,BD50C0AW,2SAR513P,MMBZ9V1AL,RBR20BM60A,BD50GA3MEFJ-M,ML9445,RB088T150,2SC4102U3,BD80GC0MEFJ-M,RB558WM,BU33SD2MG-M,RBQ15BM45A,ML9058E,RTQ025P02,BU91R63CH-M,RBQ30T65A,2SAR512P,2SA1579U3,SMLMN2WB1CW,BDJ0GA5MEFJ-M,RTQ035N03,RBR30T40A,RFN2LAM4S,RBR5LAM30B,BU91795MUF-M,DTD123EX,BAV99HM,DTC143ZX,RTR025N03,SCS215KGHR,BD49EXXG-M,BD3575YFP-M,RFN2L4S,SML-D13WW,RB168MM150,SML-Z14UT(A),BD30IC0MEFJ-M,MD60Y1G160A-XXLALQ3L,BD60GC0MEFJ-M,SMLMN2BCT(C),BA2903YFV-M,RBR2VWM40A,2SCR544P,RB075BM40S 84,BU18JA2VG-C,BD37068FV-M,2S
ROHM(罗姆) IC/功率器件/分立式半导体/无源元件/光学器件/模块 选型指南
描述- ROHM launched the ComfySIL™ brand for customers involved in the design of functional safety to use products that support SIL (Safety Integrity Level) in a ‘Comfy’ (comfortable) manner, and for social systems' greater safety, security, and convenience to which ROHM can contribute through its products.
型号- DTC143TE3,KA2004-H05N20A,ML62Q20XX,RCJ220N25,SML-S13UT,DTC143TEB,RSX101VYM30,SML-D12M8W(C),SDR,R6002JND4,BD60A00NUX,RB238NS150,SML-D12Y8W,SMLA12BN8T,MG6405WZ,BDJ0GA3VEFJ-M,SML-811UT (A),SML-010VT,BD94130EFV-M,DTA124XM,BM2SC123FP2-LBZ,RS3L110AT,RB298T100,DTC143TCA,RSS060P05,BD71L4LG-1,SFR,BR25A512,RGPR20BM36HR,BD95821MUV,BD6995FV,KD2002-G0JB10A,BU23TD2W,SML-S13VT,BD12IC0WEFJ,BU97941FV,SLI-325YC(W),RQ5L015SP,BH7673G,SML-811UT (C),BD52XXG-2C,BD6046GUL,RGW60TS65HR,BD10KA5WFP,BA03CC0FP,SML-D12Y3W,BM6241FS,BD450S5FP2-C,MH2206WZ,BD63521EFV,BU94702AKV,SML-S13PT,RB168MM200,DTC144WCA,BD22621G-M,SLI-343URC,RS6R035BH,BDJ2FC0WFP,RGT20NL65,DTD123TC,DTA015TUB,BD750L5FP-C,BM521Q25F,R8003KNX,BD52XXG-1 SERIES,SML-D12D8W (C),DTA023YEB,UCR006,BD95514MUV,BD9S200MUF-C,SML-H10PD2B,DTD123TK,RFN6T2D,IMX25,BD80FD0WHFP,R6000ENH,SML-S13RT,BU64253GWZ,BD70GC0VEFJ-M,BD52XXG-2M,RBR2LAM30A,CSL0902DT (C),RBR5L30B,RBR5L30A,RSX501LAM20,RCX300N20,KD2003-F0FW00A,BH76363FV,RQ1E075XN,TFZV,RF4G060AT,BD83A04EFV-M,BV1LC085EFJ-C,BD10IC0WHFV,BU2394KN,BAXXBC0,SML-A12MT (J),BU4094BCF,KR2002-D06B71A,BD33C0AWFP2-C,ML86V76580,DTC114YEB,RQ5E020SP,BD63573NUV,DTA015TEB,BA90BC0,DTC114YE3,SML813BNT,BH1730FVC,DAN222WM,BD68888MUV,BM2P241W-Z,PML100,BU34DV7NUX,DTC143TKA,SCS220AJ,SMLK1,BD33GC0VEFJ-M,SCS220AG,R6511ENX,BDJ6FD0WHFP,SMLK18WBNCW,R6511ENJ,CSL0901UT (C),RX3L07BBG,QS8J2,RF305BM6S,SML-011VT (A),BH1603FVC,RS1E180BN,BD53108G-CZ,DTA124EEB,BD8317GWL,BD3508MUV,RB238NS100,BD950M5EFJ-C,BD450S2FP3-C,SML-S13YT,BD00FC0W,SML-010YT,DTA124EE3,BD50HC5VEFJ-M,BD60HA5VEFJ-,SML-H12D8T(C),BD81870MUF-M,RB168LAM-30,RFUH25TB3S,BD9B600MUV,DTD123YC,BM2P159PF,DTC024XUB,SML-P11DT (R),BD725L05G-C,DTA124ECA,RB168LAM-40,RSS065N06,DTD123YK,RH6E040BG,2SC2412K,BD25IC0V,BD25IC0W,BDJ2FC0W,LBP-602MA2,BD46EXX5G-M SERIES,FMY1A,BD7691FJ,BD82004FVJ-M,BDJ0GA3WNUX,BD450S5WFP2-C,SML-522MY8W,DAN222ZM,BM2P060MF-Z,RFS60TZ6S,DTC114YCA,RBR10BGE30A,RBR40NS60A,BH76809FVM,RRH100P03,SCT3105KL,DTC043ZEB,SCT3105KR,BD9060F-C,RQ6E080AJ,BA15DD0WT,RB168LAM-60,R6035KNZ4,DTC144EU3,2SA1037AK,RESD1CANY,DTC144EUB,SML-D13WW (C),BD2266G-M,DTC023EEB,SML-012PT (A),SML-S13DT,RBS1LAM40A,BD7690FJ,DTA143XCA,SMLP2,BSM180C12P2E202,RGTH60TS65D,BD50C0AFP-C,R6035VNX3,BD99950MUV,RE1J002YN,RF101LAM2S,BM61S41RFV-C,2SCR587D3,BD1HC500HFN-C,BU7205S,2SAR553P,BV1LE080EFJ-C,BV1LC150EFJ-C,SML-011DT,RS3E095BN,BD54105G-CZ,2SAR553R,RQ3E130BN,BU2FSA4WGWL,BD15HC5WEFJ,SML-812MT,DTA143XEB,BD9862MUV,BD52W03G-C,BD48W00G-C,DTA143XE3,SLI-325DU(W),LMR982,SLR343WBN2PT2□□□□□□,LMR981,BD37522FS,RB088BM150,RB088LAM100,2SAR552P,BD26503GUL,R8002KND3,2SCR512P5,QS8K2,BU7465S,RFNL15TJ6S,BD733L2FP-C,BD30KA5FP,LM8391EY,QS8J4,BD90C0AFP2-C,QS8J5,BD68710EFV,LB-402VN,BD50C0AWFP-C,BM1Z103FJ,2SAR554P,BD9060HFP-C,BC848BW,YQ30NL10SE,BR25G640,2SAR554R,RGTV80TS65,RB715FM-40,BD62120JEFJ,LB-402VD,RBR15BM30A,DTA124EKA,BA30JC5T,BA178M05FP,BD800M5WFPJ-C,SMLP2 SERIES,BD33IA5WEFJ,BAJ2DD0,2SCR523EBTL□□□,BDXXHC0WEFJ,DTB513ZM,RSDT27BM,SMLEN3WBC8W,BU33UV7NUX,SML-011UT(A),BU97550KV-M,RF101LAM4S,BM2P121X-Z,TE3004-TP1W00A,LBP-602MK2,RB078BM30S,BD8961NV,BD67173NUX,MG7901WZ,DTD123EK,SCS304AM,BU7461S,SCT3060ALHR,BD30FC0WFP,RB088LAM150,RGW00TS65DHR,YQ20BM10SD,RSS100N03,RQ6E045BN,2SAR552P5,BU7462S,RD3L220SN,BD7J101EFJ-LB,1SS390SMFHT2R,DTD123EC,DAN235FM,RFN2LAM6S,SCS215AJHR,BD65496MUV,KA2002-B05B70A,2SC5824,BU52272NUZ,2SC4102U3,BD9B300MUV,RB558WM,DTC114GU3,SML-D12Y1W,BU33SD2MG-M,RBQ15BM45A,BU7464S,BA178M18FP,RV3C002UN,BA178M05CP,SCS304AG,SLI-570 SERIES,BU29TA2W,SCS304AJ,SML-S13MT,BM63374S-VA,BM63374S-VC,RFN2LAM4S,BDJ0GA3V,BD49EXXG-M,BD3575YFP-M,BDJ0GA3W,BM2P13B1J-Z,BU32TD3W,DTA124EUB,RB168MM150,BA178M18CP,BD18IA5VEFJ-M,RB461FM,BU33SA4WGWL,BV1HLC45EFJ-C,DTA124EU3,SIR-56ST3F,BU18JA2VG-C,BD37068FV-M,RB162VAM-20,BU9794AKV,2SCR574D3,BU32TD2W,RGCL60TS60,BD9615MUV-LB,BM2P151X-Z,BD3814FV,LB-402MN,BD41041FJ-C,BD15GA3WNUX,LB-402MD,2SC5866,BU52077GWZ,SLI-343V8R,SML-D13WW (A),BD9573MUF-M,RB088BM100,BD18336NUF-M,SLA580ENT,VS14VUA1LAM,DTC043ZUB,MR7930,BD6326ANUX,SH2104WN,RSX101MM-30,SCT3030KLHR,BU7487,BU7486,BU7485,BU7481,UMZC6-8NFMFHT106,DTC144EE3,BD50GC0VEFJ-M,PMR18L,RD3R05BBH,DTC144ECA,MCR01,VS13VUA1LAM,MCR03,BD2200GUL,RS1E130GN,BD33GA5VEFJ-LB,BU7475,RQ6E030SP,BP3622,BD14210G-LA,BP3621,BSM180D12P3C007,BD63725BEFV,RBR5L40A,SML-Z14YT (A),BU7465,BA17815FP,BU7464,BU7462,BU7461,BU4051BCF,RCJ700N20,VS24VUA1VWM,BD00HC5VEFJ-LB,BD9408FV,BD00HA3VEFJ-LB,RX3P10BBH,KDZV SERIES,BU1ATD2WNVX,RB168MM100,BD8314NUV,BD9107FVM,BD34700FV,BD5466GUL,RF4E080BN,DTC144VCA,DAP202FM,SML-Z14YT (C),BA05CC0T,BA05CC0W,RF6G035BG,UT6KE5,SML-D13FW (C),BD60HC0VEFJ-M,BM2P134EF,BD00GA5VEFJ-M,BD30KA5WF,BU1JTD3W,BD60GA5VEFJ-LB,BD52XXNVX-2C,SML-D15YW (C),BM2P137TKF,MMBZ27VCLY,SML-811VT(A),BU90005GWZ,DTA123YM,RGWX5TS65D,LM358,ML62Q1714C,BA17815CP,BD16950EFV-C,KD3004-TQFW00A,RBR2LAM40A,DTC114WUA,BD33HA5WEFJ,BD00EA5W,UT6KC5,BD18340FV-M,LM324,ML62Q1713C,MCR10,RQ3G110AT,MNR12,MNR15,MNR14,2SCR586J,MNR18,SML-811VT(C),BM6242FS,BU28SA4WGWL,KA2003-B35N00A,MH2205WZ,RFS30TZ6S,LM339,LAP-601DB,BU7495,CSL1101WBDW,BD63536FJ,MNR02,QS6Z5,MNR04,STM 331U,BU1JTD2W,MC
【IC】ROHM DC-DC转换器IC家族增加新品,有助于消费电子和工业设备电源部分的小型化
DC-DC转换器IC家族来了“新朋友”BD9E105FP4-Z / BD9E202FP4-Z / BD9E304FP4-LBZ / BD9A201FP4-LBZ,他们可以被应用在冰箱、洗衣机、PLC、逆变器等消费电子和工业设备中。
产品 发布时间 : 2024-06-07
【成功案例】压电蜂鸣器低功耗、高声级方案:基于DC-DC升压转换器SGM6601、反相器BU4S584G2的升压驱动电路
基于圣邦微超低功耗DC-DC升压转换器SGM6601和罗姆BU4S584G2反相器的压电蜂鸣器升压驱动电路的设计,可以广泛应用于超声波换能器和压电陶瓷片的升压应用,提高蜂鸣器响度和超声波检测强度。
设计经验 发布时间 : 2019-04-26
【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。
产品 发布时间 : 2024-10-30
【选型】ROHM(罗姆)通用IC选型指南(中文)
目录- 串行 EEPROM 运算放大器&比较器 电压检测器 线性稳压器 开关稳压器 电源管理开关 智能功率器件 AD/DA转换器 电压参考IC 车载用标准逻辑IC/晶体管阵列/计时器IC 封装一览
型号- BM2LB300FJ-C,BD9B304,BD9B305,BD63536,BR25HXXX-2AC,BD9B300,BD9B301,BR25H16NUX-5AC,BU46LXX2G,BR24H256FVT-5AC,BR24H08F-5AC,BR25H1MFJ-5AC,BR25H512FJ-5AC,BR24G32NUX-3,BU5265SHFV,BD50FA1MG-M,BR24G32NUX-5,BV1LC150,BR25G256FJ-3,BD48EXXG-M,BR25H256F-5AC,BR24H64FVM-5AC,BR25H020FVM-2C,BD9V101,BD9C301FJ,BD9V100,BU34DV7,BDXXGA5MEFJ-M,BR25G128FVT-3,BR25A512F-3M,BD9P135MUF-C,BU46LXX4G,BD46EXX1G-M,BV1LB028,BD226XXG-M,BD46XX1G,BU7250G,BD71L4LG-1,BR24G64FVM-5,BR24G64FVM-3,BA4580R,BR24H08FVT-5AC,BD8158FVM,BU7251SG,BD9C401,BV1LB045,BR93G46F-3A,BR93G46F-3B,BD50C0A,BD750L2,BU7251G,BR93H56RF-2C,BR25H32FVT-5AC,BD87A34FVM,BR24H04FVM-5AC,BD52XXG-2C,BU7291G,BAXXBC0(W),BD9A100MUV,BD9B500,BR24HXXX-5AC,BR93G46FVM-3,BU48XXG,BR25A256FVT-3M,BUS1DJC0GWZ,BA2902YXXX-M,BR93AXX-WM,BR24A08FJ-WM,BD49EXXG,BD95602MUV,BR25G320FVM-3,LMR1801HFV-LB,BR24G32FVM-5,BV1HB045EFJ-C,BR93G66FVT-3A,BR93G66FVT-3B,BR24G1MF-3A,BAXXCC0(W),BU9829GUL-W,BD9A400,BA4584YFV-M,BD9E302EFJ,BR24G02F-3A,BD22621G-M,BD46XX2G,BR24G32FVM-3,BR25H02FJ-5AC,BU5265HFV,BR24G01FVT-3,BD2201GUL,BR25A1MF-3M,BR24H2MFJ-5AC,BD6529GUL,BR93A66RF-WM,BD750L5FP-C,BD82039FVJ,BD9D322QWZ,BR93HXX-WC,BR25H2MF-5AC,BD46XX5G,BD70522GUL,BD9S200MUF-C,BR93G56NUX-3,BD9E151NUX,BR24G128F-3,LMR982FVM,BD52XXG,BD9D320EFJ,BD9E303EFJ-LB,BH2226FV,BA4560R,BV1LB300FJ-C,BUXXSD2MG-M,BR24G128F-5,BA2902YXXX-C,BA4560YXXX-M,BV1LB085,BD4271HFP-C,BD9C601,BA4584R,BD45XX1G,BU7294S,BR24G08FVT-3,BD90640EFJ-C,BD52XXG-2M,BDXXIC0MEFJ-M,BR24G02FJ-3A,BU7271G,BU2506FV,BD9D323,BD1HD500HFN-C,BR93H66RFVT-2C,BD9D322,BD7LS08G-C,BD9D321,BD9D320,BR24A64F-WM,BR93G46FVM-3B,BR93G46FVM-3A,BR25H1MFVT-5AC,BD9F500,BV1LC300,BD8311NUV,BU7233SF,BHXXSA3,BR25H640FVM-2AC,BR24A02FJ-WM,BR93G46NUX-3A,BU9897GUL-W,LMR931G,BR25G320F-3,BR93G46NUX-3B,BM2LB110,BV1LC085EFJ-C,BR24G01F-3A,BD9B301MUV-LB,BAXXBC0,BD7562,BR24G01FVM-3A,BA9741F,BR93A56RFVT-WM,BD45EXX2G-M,BR24G08FJ-3,BD82040FVJ,BR24G64NUX-5,BR24G64NUX-3,BD9B100MUV,BR24H128F-5AC,BR93G56FVT-3,BU7244YFV-C,BR93G76FJ-3,BU34DV7NUX,BR24TXX-3AM,BU7464SF,BA1117,BD33C0AW,BU7232YFVM-C,BUXXJA2,BR93G46F-3,BR24G16NUX-3,BV2HC045EFU-C,BD2222G*,BU7275SHFV,BU33DV7NUX,BR25G320NUX-3,BD90302,BA9743A,BD9S000NUX-C,BR24G16FVT-3,BD7542,BR24G16FJ-3,BD4271,BR93A86RFVM-WM,TLR344,BD4269,BR24H128FVM-5AC,BD9P233MUF-C,BR25H160FVM-2C,BU1S12S1BG-LB,BD49LXXG,TLR342,BD8317GWL,BD9035AEFV-C,LMR821G,BD95602MUV-LB,BD9P255EFV-C,BU46KXX2G,BD9B100,BR25H020FJ-2C,BR25H02FVT-5AC,BR24G512FJ-3A,LM2904,BD1HC500FVM-C,BV1LB010,LM2901,LM2902,BA4584FV,LM2903,BR24H16F-5AC,BU7231SG,BA9743AFV,BD9C401EFJ,BR93G66FVT-3,BR25H010FVT-2C,BU9889GUL-W,BD22641G-M,BD9B600MUV,BU7205SHFV,BD2242G*,BR24G128NUX-5,BR24G512FVT-3A,BD3021HFP,BR24G128NUX-3,BD9611MUV,BU7205HFV,BD37A41FVM,BD87A29FVM,BD9B333,BD3570Y,BR25H256NUX-5AC,BV1LC105,BA178MXX,BM2LB300,BR24G04FVT-3A,BD9D300,BU46KXX4G,BV1LB010FPJ-C,BD9555FVM-C,BR24G512FJ-5A,BRCG016GWZ-3,BR93A56RFJ-WM,BD1LB500,BR24G08NUX-3,BR93H76RFVT-2C,BUXXSD5W,TLR341G,BRCB008GWZ-3,BR24G512FVT-5A,BD48LXXG,BU7253SF,BR24T512F-3AM,BR25H320FVM-2C,BR93H76RFJ-2C,LMR822,BR24G1MFJ-3A,BR25H128FJ-5AC,BR24H02FVT-5AC,BR24G01NUX-3A,LMR824,BR25G640FVT-3,BD12730G,BD82042FVJ,BR93G76FVM-3A,BD9152MUV,BR93G76FVM-3B,BA14741,BD80C0A,BR25G128FVM-3,BU7421SG,BR25H128F-5AC,BA2901YXXX-C,BD2266G-M,BD9S400,BD9P135,BR24G01NUX-3,BR25H16FJ-5AC,BDXXKA5(W),BD7541SG,BV1HB045,BD9S100NUX-C,BR24H512FJ-5AC,BR25G512F-3,BR93A76RFVM-WM,BDXXIA5,BM2LB110FJ-C,BR25H64FVT-5AC,BR24G1MFJ-5A,BR24G04FVM-3A,BR25H080FVM-2C,BR24G08FVM-3,BD12734,BU45KXX4G,BD12732,BD9E100FJ-LB,BDXXHA3MEFJ-M,BD1HC500HFN-C,BR25H640FJ-2AC,BD87A28FVM,BV1LC150EFJ-C,BA3474RFV,BR24H32FJ-5AC,BR93A46RFJ-WM,BR93H66RF-2C,BD9P155,BR25H08FJ-5AC,BV2HC045EFU-C,BD71L3SHFV,BDXXHA3MEFJ-C,BD90302NUF-C,BU9832GUL-W,BD6528HFV,BR24G04FVM-3,BDXXIC0,BR25H320F-2C,BD9G401EFJ-M,BR93GXX-3,BD00D0A,BA82904YXXX-C,BD9E104FJ,BR93A66RFVT-WM,BD9E151,BD33C0A,BU45KXX2G,BD37A19FVM,BR24G08FVT-3A,BD90C0A,BR93H46RF-2C,BU7475SHFV,BD99011,BD9150,BD9151,BD99010,BR25H32NUX-5AC,LMR341G,BA9744,BA9741,BRF0520A,BU9891GUL-W,BD2233G,BD9A101MUV-LB,BR25G256FVT-3,BR25H080FJ-2C,BDXXGA3,BD90C0AW,BU7442S,BUXXTA2W,BR24G04NUX-3,BR24H04NUX-5AC,BR25A256F-M,BV1LC105FJ-C,BAXXJC5(W),BR93G46FVT-3A,BR93G46FVT-3B,BDXXGA5,BR93G86NUX-3,BD9A302QWZ,BV2HX045EFU-C,BD9A300MUV,BD82044FVJ,BUXXJA2DG-C,BD9G341AEFJ-LB,BD2232G,BDXXLA5MEFJ-M,BR25H08FVM-5AC,BD47XXG,BA2107G,BR25A512FVT-3M,BR25H160FVT-2C,BA2903YXXX-C,BR24H32FVM-5AC,BR25HXXX-2C,BR25H02NUX-5AC,BU7444F,BD99A41F,BR25H1MF-5AC,BM2LC105,BD7LS97G-C,BR25H020F-2C,BD2264G-M,BU7495HFV,BD49KXXG,BR93G66F-3A,BR93G66F-3B,BD8306MUV,BV1LB085FJ-C,BR24G128FVM-5,BR24G128FVM-3,BDXXGC0,BA2901YXXX-M,BAXXCC0,BD9E100,BD9E101,BU33UV7NUX,BD9E104,BD9P105,BR93H56RFVM-2C,BDXXHA5MEFJ-M,BR24G02FVM-3A,BA3474YFV-C,BD7561SG,BR93G66NUX-3,BR25G320FJ-3,BR25H32FJ-5AC,BA4564WFV,BU7421G,BR93G46NUX-3,BA3474F,BA8391G,BR24A16FJ-WM,BU45LXX2G,BD95830MUV,BD45XX2G,BD48EXXG,BR93G66NUX-3A,BR93G56FJ-3,BD9PXX5EFV,BRXXXXXX-5,BD9S012NUX-C,BR25H640F-2AC,BD9S000,BR93G86NUX-3A,LMR321G,BU7244F,BA2904YXXX-C,BR93G66NUX-3B,BR93G86NUX-3B,BR24H16FJ-5AC,BU7244S,BD9P205EFV-C,BU7462S,BU7486S,BH2227FV,
升压型DC-DC转换器中高频噪声的产生原因
本文介绍“升压型DC-DC转换器中高频噪声的产生原因”。关于升压电源的输出中产生远高于开关频率的高频噪声的原因,将从“升压型DC-DC转换器的工作”、“输出电容器和布线中的电感分量”、“低边开关的输出容量和振铃”和“低边开关导通时的工作”几个角度进行说明。
设计经验 发布时间 : 2024-04-12
LDO, DC-DC Converter Design Tool Selection Guide
型号- BUXXTA2 SERIES,BD9G201UEFJ-LB,BDXXGA3WNUX,BA1117 SERIES,BD9E201FP4-Z,BD9BXXX,BD9106FVM,BD9137MUV,VG-C,BD9A301MUV-LB,BD9E303EFJ,BDXXFC0 SERIES,BD9A201FP4-LBZ,BD9E301EFJ-LB,BD9E200FP4-Z,BDXXHA5 SERIES,BD80C0AWFP-C,BDXXHA3 SERIES,BD9BXXX SERIES,BD00EA5 SERIES,BD9P205EFV-C,BD433M5FP2-C,BD9GXXX,BD933N1WG-C,BDXXD0A SERIES,BD95831NUV,BHXXNB1 SERIES,BUXXJA2MNVX-C SERIES,BD9P208MUF-C,BD9F500QUZ,BD9CXXX SERIES,BD9851EFV,BDXXIA5 SERIES,BD9P205MUF-C,BHXXRB1 SERIES,BD9A600MUV,BD9E101FJ,BD9P155EFV-C,BD9B301MUV,BAXXDD0 SERIES,BDXXGC0 SERIES,BD9B100MUV,BD9G102G-LB,BD9C301FJ,BD9P155MUF-C,BD9E100FJ-LB,BUXXJA3DC-C,BD9141MUV,BD950N1WEFJ-C,BD90610EFJ-C,BD9D321EFJ,BD35395FJ,BHXXMA3 SERIES,BDXXGA5 SERIES,BD750L2EFJ-C,BD950N1WG-C,BUXXJA2DG SERIES,BD9A400MUV,BD9P135EFV-C,BD9P135MUF-C,BD9C501EFJ,BUXXTD3 SERIES,BD9E301EFJ,BD9S300MUF-C,BD9S400MUF-C,BD9F800MUX,BUXXTD2 SERIES,BD9B300MUV,BD9S201NUX-C,BUXXSA5 SERIES,BD90302NUF-C,BD9F800MUX-Z,BD450M5FP2-C,BD9EXXX,BD4XXM5WFP2-C,BUXXSD5 SERIES,BD9E101FJ-LB,BD9G401EFJ-M,BD8P250MUF-C,BD95861NUV,BD9E104FJ,BD9G201UEFJ-M,BD9P308MUF-C,BD9P255MUF-C,BD9E100FJ,BD9G341AEFJ,BD9P255EFV-C,BD9E202FP4-Z,BD8374HFP,BD9FXXX,BHXXPB1 SERIES,BD9B500MUV,BD9EXXX SERIES,BAXXCC0 SERIES,BD9A100MUV,BD450M5FP-C,BDXXFA1FP3 SERIES,BUXXJA2DC-C,BD9E300EFJ-LB,BD00C0AWFP-C,BDXXHC5 SERIES,BDXXIC0 SERIES,BD433M5FP-C,BD7XXL05G-C,BD95841NUV,BD9C401EFJ,BDXXKA5 SERIES,BD9A101MUV-LB,BD00D0A SERIES,BHXXM0A SERIES,BD90620HFP-C,BD9B600MUV,BUXXSD2 SERIES,BD9D300MUV,BD450M2FP3-C,BAXXBC0 SERIES,BD9E105FP4-Z,BDXXHC0 SERIES,BD9CXXX,BD9FXXX SERIES,BD95821NUV,BD9611MUV,BD90620EFJ-C,BD9615MUV-LB,BD9A300MUV,BD9E302EFJ,BD9G341AEFJ-LB,BD450M2EFJ-C,BD933N1WEFJ-C,BD9G500EFJ-LA,BD9B400MUV,BDXXFA1MG-M SERIES,BDXXC0A SERIES,BD9GXXX SERIES,BD9DXXX,BD933N1G-C,BD750L5FP-C,BAXXJC5 SERIES,BD9P235MUF-C,BD733L2EFJ-C,BHXXSA3 SERIES,BD9P235EFV-C,BD9B200MUV,BD933N1EFJ-C,BD950N1EFJ-C,BUXXTD2WNVX,BD9139MUV,BD90640HFP-C,BD9E304FP4-LBZ,BA178XX SERIES,BD70522GUL,BD9S200MUF-C,BD9G201EFJ-LB,BUXXSA4 SERIES,BD950N1G-C,BDXXFD0 SERIES,BD9P608MFF-C,BD733L5FP-C,BD9E303EFJ-LB,BD9D320EFJ,BD9P105EFV-C,BD9AXXX,BD9DXXX SERIES,BD433M2FP3-C,BD9S402MUF-C,BD9XXN1G-C,BD9G401UEFJ-M,BD90640EFJ-C,BD00IA5MHFV-M,BD9P105MUF-C,BD9E300EFJ,BA178MXX SERIES,BD9P108MUF-C,BD9G201EFJ-M,BDXXGA3 SERIES,BUXXTD3WG,BD9AXXX SERIES,BD433M2EFJ-C,VG SERIES,BD9C601EFJ,BD9G101G,BD9130NV
ROHM降压型DC-DC转换器IC选型表
从输入电压和输出电流的矩阵中可以轻松找到与规格要求相契合的电源解决方案。另外从快速响应控制和轻负载时效率改善模式中,能够选择符合要求的产品。
产品型号
|
品类
|
Grade
|
ch
|
Integrated FET / Controller
|
Topology
|
Synchronous / Nonsynchronous
|
Vin1 (Min.)[V]
|
Vin1 (Max.)[V]
|
Vout1 (Min.)[V]
|
Vout1 (Max.)[V]
|
Iout1 (Max.)[A]
|
SW frequency (Max.)[MHz]
|
Light Load mode
|
EN
|
PGOOD
|
Operating Temperature (Min.)[°C]
|
Operating Temperature (Max.)[°C]
|
Package
|
BD9E200FP4-Z
|
降压型DC-DC转换器IC
|
Standard
|
1
|
Integrated FET
|
Buck
|
Synchronous
|
4.5
|
26
|
0.7
|
20.8
|
2
|
0.5
|
Yes
|
Yes
|
No
|
-40
|
85
|
TSOT23-6L
|
选型表 - ROHM 立即选型
ROHM(罗姆)LED驱动器选型指南(中文)
描述- 罗姆为市场提供各种LED驱动器,主要用于照明、背光源、闪光光源、显示设备及车载设备。提供各种AC/DC和DC/DC LED驱动器及恒流LED驱动器。
型号- BD8389FV-M,BD9470AFM,BD9394EFV,BD83733HFP-M,BD18364EFV-M,BD83812EFV-M,BD9411F,BD8388FV-M,BD26503KS2,BD9483F,BD2606MVV,BD18326NUF-M,BD81A44MUV-M,BD60A60NUX,BD83A04EFV-M,BD9422EFV,BD18333EUV-M,BD9483FV,BD521GOFJ,BM520Q15F,BD18347AEFV-M,BD83732HFP-M,BD18395EFV-M,BD83740HFP-M,BD65D00MUV,BD60A00NUX,BD18343FV-M,BD18327EFV-M,BD9486F,BD6586MUV,BD18351EFV-M,BM531Q11,BD81A24EFV-M,BD18332EUV-M,BD8374HFP-M,BD2801MUV,BU16501KS2,BD18342FV-M,BD18341FV-M,BD83A24MUF-M,BD94130MUF-M,BD81A24MUV-M,BD94130EFV-M,BD9409F,BD6142AMUV,BD18353EFV-M,BD8381AEFV-M,BD8374EFJ-M,BD18340FV-M,BD9413F,BD83A14EFV-M,BD18398EUV-M,BM521Q25F,BD1604MUV,BD2802GU,BD81A24MUF-M,BD18330EFV-M,BD1754HFN,BD12801MUF-M,BD18362EFV-M,BD18397RUV-M,BD18353MUF-M,BD18337EFV-M,BD65B60GWL,BD18336NUF-M,BD8372HFP-M,BD9408FV,BD94062F,BD18345EFV-M,BD81A76EFV-M,BD82A26MUF-M,BD18397EUV-M,BD7757MWX,BD81A44EFV-M,BD92111F,BD9416FS,BD2812GU,BD9397EFV,BD18398RUV-M,BD6583MUV-A,BD93942F,BD2808MUV-M,BD83A14MUF-M,BD9420F,BD81A74EFV-M,BD83816EFV-M,BD81A74MUV-M,BD18347EFV-M,BD6071HFN,BD82A16MUF-M,BD26503GUL,BD8372UEFJ-M,BD9479FV
REF66012 – 参考设计 ADAS SoC用 PMIC解决方案
型号- BD96801Q09-CE2,BD9S303,BD9S303MUF-CE2,BD96801Q09,BD96801,BD9S303MUF
电子商城
现货市场
服务
可定制车规级电感的电流范围0.3~17.9A,尺寸最小1x0.55x0.5mm到最大12.5x12.5x6mm,工作频率100KHz~2MHz,感值范围:0.47uH~4.7mH。符合IATF16949和AECQ-200。SPQ为5K。
提交需求>
可定制平板变压器、主变压器的开关频率2MHz以内、输入电压1400V以内、输出电压1400V以内,50%以上的产品采用自动化生产,最快3天提供样品、7天交货。
最小起订量: 3000 提交需求>
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