【应用】5.0 kVrms高耐压电流检测放大器助力BMS系统参数检测
在BMS系统中,电流放大器是BMS参数检测的重要器件,通过电流放大器可以将测得的电流信号转换为电压信号,并可以同时估算SOC和SOH等重要参数。对于放大器的基本要求如下:
带宽较大:最好在100-600kHZ之间。
电压:在兼顾成本的情况下,峰峰值越大越好。
功率:功率代表了放大器的驱动能力,P=U*I ,电动汽车的单节电池一般电压为3.3-5V之间,电流一般为1-5A,故功率要低于25W。
通道:单通道差分输入,保证通道传输同步性。
针对以上使用需求,笔者在项目中选用了世强代理的SILICON LABS SI8920电流放大器,Si8920隔离放大器采用Silicon Labs经过验证、基于CMOS的隔离技术,可满足UL、VDE、CQC和CSA标准的严格要求,支持最高5kV隔离承受能力和1200V的工作电压,并能够提供比竞争对手隔离技术更宽的工作温度范围、更好的噪声抑制和更长的使用寿命。Si8920放大器极低的温度漂移(1μV/°C)确保在各种工作条件下性能稳定。Si8920器件具备业界领先的信号带宽(最高可达400kHz),可确保快速、精确的直流电流测量,以及主信号和谐波信号的精确呈现。
下面介绍Si8920的相关应用优势:
(1)Si8920是一个电流隔离的模拟放大器。低压差分输入非常适合测量电流分流电阻两端的电压,输出8.1x或16.2x的差分模拟信号。
(2)Si8920具有较低的信号延迟,控制器可以较快的判断信号准确性,同时其具有极低的温漂和线性增益,可以保证系统运行的可靠性,极高的共模瞬态抗扰性意味着即使存在大功率开关的情况下,Si8920也能提供精确的测量。
(3)Si8920支持高达5.0 kVrms的耐压值,与其他隔离技术相比,该技术可实现更高的性能,减少随温度和时间变化的变化,器件的使用寿命更长。
下图是笔者在BMS系统中关于Si8920的应用电路图:
图1:Si8920在BMS中的应用电路图
负载端设计思路:
图1中负载是单节电池包,RSENSE是小阻值电阻,用以降低功耗(注:电阻过低会降低测量的信噪比)。Si8920提供两个指定满量程输入选项,±100 mV(Si8920A)和±200 mV(Si8920B),用于优化RSENSE的值。笔者建议,Si8920的AIP和AIN接口应尽可能靠近RSENSE电阻的两端,因为过长的走线会带来测量误差。
Si8920的放大器带宽大约为950 kHz。 如果需要进一步的滤波,可以在RSENSE和输入引脚之间放置一个无源的差分RC低通滤波器。 推荐使用R1 = R2 = 20Ω和C1 = 10 nF,可以达到约400KHZ的输入。在设计过程中,为了减小增益误差,R1和R2应始终小于33Ω,源阻抗与Si8920输入阻抗相比足够低。
Si8920设计思路
在Si8920的设计中,GNDA,AIN和AIP的共模电压必须大于-0.2 V,但小于1V. 为了满足这个要求,将Si8920的GNDA连接到RSENSE电阻的一端。如图1所示,为了满足设计需求,连接了GNDA,RSENSE,Q1的源极和Q2的漏极。
Q1门极驱动器有一个浮动电源,本应用中约为24 V.。由于Si8920的输入和输出彼此电隔离,因此每一侧都需要添加单独的电源。 Q3,R3,C3和D1构成一个电路调节器,用于从浮动电源为Si8920的输入端供电。 D1在Q3的基极添加了一个5.6 V的电压,R3为D1提供10 mA的齐纳电流。C3在Q3的基极提供滤波,而Q3的发射极输出为VDDA提供大约5V的电压。C2是电源旁路电容,放置在VDDA引脚,其回路连接到RSENSE的GNDA连接。C4可以滤除Si8920的VDDB端的杂波,AOP和AON的输出信号是差分的,标称增益为8.1(Si8920B)或16.2(Si8920A),共模电压为1.1 V。
抗混叠滤波器设计
输出由差分输入ADC采样。根据ADC的采样率,需要使用抗混叠滤波器。一个简单的抗混叠滤波器可以由无源元件R4,C6和R5制成。 该滤波器的特性取决于ADC的输入拓扑结构和采样频率。但是,为确保Si8920输出不会过载,R4 = R5> 5kΩ,C6可通过以下公式计算:
笔者对设计的电路进行了检测测试,测试如图2所示:
图2:放大器测试示波器图
对图2进行分析,在上电工作之后,给与正弦信号激励,电流放大器输出信号趋于稳定,滤波效果较为良好,说明放大器可以很好应用于BMS系统。
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(A),BH1603FVC,RS1E180BN,BD70FC0W,RF201L2S,BD7F100HFN-LB,BD48XXFVE,VS5V0BB1FS,SML012ENT,DTA124EEB,BD8317GWL,BM2P051F,BD60GC0MEFJ-LB,ML610Q400,BD3508MUV,RB238NS100,SML-S13YT,DTB114EC,BD00FC0W,ML7174 [J],SML-010YT,RV2E014AJ,SLI-343M8C,BM2P101EK-LBZ,BD63888AEKV,BD63888MUV,DTB114EK,RGW00TS65HR,SLI-343M8G,RQ5L020SN,BD81870MUF-M,DTC044TUB,BA25JC5T,RB228T100,RB168LAM-30,ML610Q411PA,RFUH25TB3S,BD30IC0MEFJ-LB,BD9B600MUV,BM2P052F,DTD123YC,BM2P159PF,SCT4036KR,SLR-322DU,BD87A29FVM,RF201L4S,DTC024XUB,RQ1A060ZP,SML-P11DT (R),DTA124ECA,DTB114GC,RB168LAM-40,RSS065N06,BM2P053F,DTD123YK,BD33GC0MEFJ-LB,BD9874CP-V5,SML-D13FW,BD49EXXG SERIES,SLR-322DC,2SC2412K,BM63563S-VC,RFNL20TJ6S,RF505BGE6S,BD25IC0W,BM63563S-VA,BDJ2FC0W,LBP-602MA2,ML9092-03,ML9092-02,BA3259HFP,ML9092-04,RH6L040BG,USB 500U,RF01VM2S,BD46EXX5G-M SERIES,RJ1L12BGN,RRR1VWM4STFTR,FMY1A,BM2P054F,BD7691FJ,BD82004FVJ-M,USB 500T,SML-811WT,SML-522MY8W,DAN222ZM,BM2P060MF-Z,BD15HA5MEFJ-LB,RFS60TZ6S,UMZ18NFM,BD48LXXG,DTC114YCA,RBR10BGE30A,RBR40NS60A,BH76809FVM,RRH100P03,SCT3105KL,DTC043ZEB,SCT3105KR,BD18HA5WEFJ,BD9060F-C,RB058LAM-60,RQ6E080AJ,RB168LAM-60,SLI-560DT,BD2051AFJ,BD61250MUV,BD94122F,R6035KNZ4,DTC144EU3,2SA1037AK,BD9470AFM,2SB1590K,RD3T075CN,BD35395FJ-M,RESD1CANY,SP8M41,DTC144EUB,BHXXRB1WGUT,UMH11N,BD2266G-M,DTC023EEB,SLI-570Y2T,BA82904Y,SML-012PT (A),BM6101FV-C,SML-A15YT,SML-S13DT,BD82020FVJ,RBS1LAM40A,BD7690FJ,DTA143XCA,BSM180C12P2E202,ML9092-01,RGTH60TS65D,BDXXIA5,RBQ10NS45A,R6009END3,R6035VNX3,BD99950MUV,RE1J002YN,SP8M31,RFN10T2D,UMH10N,RF101LAM2S,BD88210GUL,BD48EXXG SERIES,BA82903Y,BM61S41RFV-C,2SCR587D3,BD1HC500HFN-C,R6015ENZ,BU7205S,2SAR553P,BV1LC150EFJ-C,SML-011DT,RS3E095BN,ML86V8401,DTC014TM,BH26M0AWHFV,2SAR553R,BD63576NUX,RQ3E130BN,BA82902Y,BU2FSA4WGWL,BD81010MUV,KA2002-B35N00A,BD71L3SHFV,R6042JNZ4,BD15HC5WEFJ,BD90302NUF-C,SH8M24,SML-812MT,BU6652NUX,DTA143XEB,BD82032FVJ,BDXXIC0,BD52W03G-C,BD9862MUV,ML9098B,SP8M51,BD48W00G-C,RGS80TSX2DHR,BH15M0AWHFV,BU30JA2DG-C,SML-D12P8W,LMR982,LMR981,BD37522FS,R6015ENJ,RB088BM150,BA82901Y,RB088LAM100,KDZV,2SAR552P,ML610Q422P,BD26503GUL,R6015ENX,R8002KND3,BUXXSA5WGWZ,2SCR512P5,ML62Q1878,BH3544F,ML62Q1879,QS8K2,BU7465S,SCT3080AW7,RQ6E050AT,BD00IA5WEFJ,RFNL15TJ6S,SCT2450KE,BD30KA5FP,RQ6E050AJ,SML-D12□8□WT86□□□□,VS5V0BB1ES,BA33D15HFP,QS8J4,QS8J5,ML62Q1869,BD68710EFV,DTA043TUB,DTA114TEB,BH30M0AWHFV,RF1001T2D,RBR15BGE30A,LB-402VN,RSJ250P10,BV1LC105FJ-C,RFU02VSM8S,2SAR554P,BD30GC0WEFJ,BM1Z103FJ,BD60203EFV,BD9060HFP-C,BC848BW,UMZ1N,RS1L180GN,YDZV SERIES,BD82044FVJ,BR25G640,BD30HC0MEFJ-LB,2SAR554R,BD00HC5MEFJ-LB,RBR1L30A,RF301
罗姆集团综合产品目录
型号- DTC143TE3,KA2004-H05N20A,ML62Q20XX,RCJ220N25,SML-S13UT,DTC143TEB,RSX101VYM30,SDR,R6002JND4,BD60A00NUX,RB238NS150,SML-D12Y8W,SMLA12BN8T,MG6405WZ,BD00HC5WEFJ-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,BU97941FV,RQ5L015SP,BH7673G,SML-811UT (C),BD52XXG-2C,BD6046GUL,RGW60TS65HR,SML-D12Y3W,BM6241FS,MH2206WZ,BD63521EFV,BU94702AKV,SML-S13PT,RB168MM200,DTC144WCA,BD22621G-M,SLI-343URC,RS6R035BH,RGT20NL65,DTD123TC,DTA015TUB,BD750L5FP-C,BM521Q25F,R8003KNX,BD52XXG-1 SERIES,SML-D12D8W (C),DTA023YEB,UCR006,BD95514MUV,BD9S200MUF-C,SML-H10PD2B,DTD123TK,RFN6T2D,IMX25,R6000ENH,SML-S13RT,BU64253GWZ,BD70GC0VEFJ-M,BR93HXX-2C系列,BD52XXG-2M,RBR2LAM30A,CSL0902DT (C),RBR5L30B,RBR5L30A,RSX501LAM20,RCX300N20,KD2003-F0FW00A,BH76363FV,RQ1E075XN,TFZV,RF4G060AT,BD83A04EFV-M,BV1LC085EFJ-C,BU2394KN,SML-A12MT (J),KR2002-D06B71A,ML86V76580,DTC114YEB,RQ5E020SP,SML,BD63573NUV,DTA015TEB,BA90BC0,DTC114YE3,SML813BNT,BH1730FVC,DAN222WM,BD68888MUV,BM2P241W-Z,PML100,BU34DV7NUX,DTC143TKA,SCS220AJ,SMLK1,BD33GC0VEFJ-M,SCS220AG,R6511ENX,SMLK18WBNCW,R6511ENJ,CSL0901UT (C),RX3L07BBG,QS8J2,RF305BM6S,SML-011VT (A),BH1603FVC,RS1E180BN,BD53108G-CZ,DTA124EEB,BD8317GWL,BD3508MUV,RB238NS100,BD950M5EFJ-C,SML-S13YT,BD00FC0W,SML-010YT,DTA124EE3,BD50HC5VEFJ-M,BD81870MUF-M,RB168LAM-30,RFUH25TB3S,BD9B600MUV,DTD123YC,BM2P159PF,BD50HA3WEFJ-M,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,SML-522MY8W,DAN222ZM,BM2P060MF-Z,RFS60TZ6S,DTC114YCA,RBR10BGE30A,RBR40NS60A,BH76809FVM,RRH100P03,SCT3105KL,DTC043ZEB,SCT3105KR,ECO 260,BD9060F-C,RQ6E080AJ,RB168LAM-60,R6035KNZ4,DTC144EU3,2SA1037AK,RESD1CANY,DTC144EUB,SML-D13WW (C),BD2266G-M,DTC023EEB,SML-012PT (A),SML-S13DT,RBS1LAM40A,BD7690FJ,DTA143XCA,SMLP2,BSM180C12P2E202,RGTH60TS65D,R6035VNX3,BD99950MUV,RE1J002YN,RF101LAM2S,BM61S41RFV-C,2SCR587D3,BD1HC500HFN-C,BU7205S,2SAR553P,BV1LE080EFJ-C,BV1LC150EFJ-C,SML-011DT,RS3E095BN,BD54105G-CZ,2SAR553R,RQ3E130BN,BU2FSA4WGWL,SML-812MT,DTA143XEB,BD52W03G-C,BD9862MUV,BD48W00G-C,DTA143XE3,LMR982,SLR343WBN2PT2□□□□□□,LMR981,BD37522FS,RB088BM150,RB088LAM100,2SAR552P,BD26503GUL,R8002KND3,2SCR512P5,QS8K2,BU7465S,RFNL15TJ6S,BD733L2FP-C,LM8391EY,QS8J4,QS8J5,BD68710EFV,LB-402VN,2SAR554P,BM1Z103FJ,BD9060HFP-C,BC848BW,YQ30NL10SE,BR25G640,2SAR554R,RGTV80TS65,RB715FM-40,BD62120JEFJ,LB-402VD,RBR15BM30A,DTA124EKA,BA30JC5T,SMLP2 SERIES,BD33IA5WEFJ,BAJ2DD0,2SCR523EBTL□□□,DTB513ZM,RSDT27BM,SMLEN3WBC8W,BU33UV7NUX,BU97550KV-M,RF101LAM4S,BM2P121X-Z,LTR18EZPJ□□□□,TE3004-TP1W00A,LBP-602MK2,RB078BM30S,BD8961NV,BD67173NUX,MG7901WZ,DTD123EK,SCS304AM,BU7461S,SCT3060ALHR,RB088LAM150,RGW00TS65DHR,YQ20BM10SD,RQ6E045BN,RSS100N03,2SAR552P5,BU7462S,RD3L220SN,BD7J101EFJ-LB,1SS390SMFHT2R,DTD123EC,DAN235FM,RFN2LAM6S,SCS215AJHR,BD65496MUV,KA2002-B05B70A,2SC5824,BU52272NUZ,2SC4102U3,BD9B300MUV,RB558WM,DTC114GU3,SML-D12Y1W,BU33SD2MG-M,RBQ15BM45A,BU7464S,RV3C002UN,SML- EN SERIES,SCS304AG,SLI-570 SERIES,BU29TA2W,SCS304AJ,SML-S13MT,BM63374S-VA,BM63374S-VC,RFN2LAM4S,BR25HXXX-5AC系列,BD49EXXG-M,BDJ0GA3V,BD3575YFP-M,BDJ0GA3W,BM2P13B1J-Z,BU32TD3W,DTA124EUB,RB168MM150,BD18IA5VEFJ-M,RB461FM,BU33SA4WGWL,BV1HLC45EFJ-C,DTA124EU3,SIR-56ST3F,BU18JA2VG-C,BD37068FV-M,ML62Q1367□-NNNTBXXXX,RB162VAM-20,BU9794AKV,2SCR574D3,BU32TD2W,RGCL60TS60,BD9615MUV-LB,BM2P151X-Z,BD3814FV,LB-402MN,BD41041FJ-C,LB-402MD,2SC5866,BR25HXXX-5AC,BU52077GWZ,SLI-343V8R,SML-D13WW (A),BD9573MUF-M,RB088BM100,BD18336NUF-M,SLA580ENT,VS14VUA1LAM,DTC043ZUB,MR7930,BD6326ANUX,SH2104WN,RSX101MM-30,SCT3030KLHR,BU7487,BU7486,BU7485,BZX84BXXLY,BU7481,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,BU7464,BU7462,BU7461,RCJ700N20,VS24VUA1VWM,BD00HC5VEFJ-LB,BD9408FV,BD00HA3VEFJ-LB,RX3P10BBH,KDZV SERIES,RB168MM100,BD8314NUV,BD34700FV,BD9107FVM,BD5466GUL,RF4E080BN,DTC144VCA,DAP202FM,SML-Z14YT (C),BR25HXXX-2C系列,BA05CC0W,RF6G035BG,UT6KE5,SML-D13FW (C),BD60HC0VEFJ-M,BM2P134EF,BD00GA5VEFJ-M,BU1JTD3W,BD60GA5VEFJ-LB,BD52XXNVX-2C,SML-D15YW (C),BM2P137TKF,MMBZ27VCLY,BU90005GWZ,DTA123YM,RGWX5TS65D,LM358,ML62Q1714C,BD18HC5WEFJ-M,BD16950EFV-C,KD3004-TQFW00A,RBR2LAM40A,DTC114WUA,BD00EA5W,UT6KC5,BD18340FV-M,LM324,ML62Q1713C,MCR10,RQ3G110AT,MNR12,MNR15,MNR14,2SCR586J,MNR18,BM6242FS,BU28SA4WGWL,KA2003-B35N00A,BD15HA5WEFJ-M,MH2205WZ,RFS30TZ6S,LAP-601DB,LM339,BU7495,CSL1101WBDW,BD63536FJ,MNR02,QS6Z5,MNR04,STM 331U,BU1JTD2W,MCR18,RBR2L60B,DTA143EE3,R8009KNX,RBR2L60A,BRCH064GWZ-3,BSM600D12P3G001,BD8312HFN,SML-P14RW,RSX201VYM30,RQ5E070BN,RBR1LAM40A,BD82028FVJ,SCT4045DRHR,RB088BGE100,MMBZ5V6ALY,UT6KB5,BD9S231NUX-C,RGT8NS65D,RSJ151P10,BA25BC0W,DTA143EEB,ML610Q306,RGWS60TS65D,BM2P134QF,ML610Q305,ML610Q300,BD9P155MUF-C,LM393,BD4271EFJ-C,BD3020HFP,BD18398EUV-M,BD12KA5W,DTC013ZUB,
先积集成(Linearin)放大器/比较器/数据转换器/模拟开关/电源管理产品选型指南(英文)
目录- COMPANY INTRODUCTION PRODUCT INTRODUCTION Amplifiers Comparators Data Converters LDO Voltage reference Analog Switch
型号- LTC8701,LTC8705,LTC8704,LTC8703,LTC8702,LTR3030,LTC8382,LTR3033,LTP3465-XX,LTA8094,LTA809X FAMILY,LTA8092,LTC8381,LTC358,LTC324H,LTA8091,GP8101S,LTC8811,LTC8814,GP8102S,LTC8813,LTC8812,GP9301B,GP9101,LT180B2,GP9105,LT180B1,LT180B4,LT180B3,LTR3040,GP8202SL,LTR33 SERIES,GP8211S,LTP3558A,LTR3012,LTA829,LT180A4,LT180A1,LT180A3,LT180A2,LTA8074,LTA8072,LTC358H,LTA8071,LTP3454-XX,LTP3564,LTC331,LTP3567,LTC358A,LTP3559A,GP8201S,LTR3025,LTR3020,LTC321A,LTC321B,LTA8084,LTA8081,LTA8082,LTC324,LTC321,LTP3558,LTP3559,LTC8745,LTC8744,LTC8743,LTC8742,LTC8748,LTC8746,LTA6034,GP8101,LTA6031,LTC8741,LTA6032,GP8202ASL,LTC393,LTC5223,GP9305,LTC5228,LTA8224,LTA8221,LTA6042,GP9303,LTA8222,LTA6041,LTA6044,LTP3570,LTC8728,LTC8844,LTC8723,LTC8722,LTC8842,LTC8721,LTC8841,LTC3157,LTC8727,LTC8726,LTC8725,LTA809X,LTC881X FAMILY,LTC881X,LTC8838,LT199,LTC8832,LTC8831,LTC8836,LTC8835,LTC8834,LTA5054,LTC8392,LTC8391,LTC8708,LTC8707,LTC8706,LTC6004,GP8212ASL,LTP33XX,LTR3312,LTC6001,GP8301,LTA8134,LTC6002,LTC72X,LTA8131,GP8303,LTA8132,GP8302,LT199 SERIES,LTP3456-XX,LTR3325,LTR3320,LTA4584,LTA8024,LTA8021,GP8413,LTA8264,LTA4580,LTA8022,LTA8261,LTA8262,LTC728,LTA6052,LTC726,LTA6051,LTC8876,LTC8875,LTC8874,LTC8878,LT199G3,LT199G2,LTA604X,GP8312,LTC8872,GP9403,GP7101,LTC8871,LT199G1,GP8313,LTC725,LTC724,LTC722,LTC721,GP8503,GP8502,LTC8582,LTC8581,GP8501,LTC8584,GP8500,GP8212SL,LTA8292,LTA8291,LTC855X,LTA604X FAMILY,LTC8333,LTC8332,LTC8331,LTA8184,LTA8064,LTA8061,LTA8182,LTA8062,LTA8181,LTP6202,GP9301BM,GP8403,LTP829,LTR3333,LTC2467,LTR3330,LTA8274,LTA8154,GP8401,LTA8272,LTA8151,LTA8152,LTA8271,GP8513,LTC7227,GP7305,LTR3340,LTC8554,LTC7222,LTC8553,LTC8552,GP8512,LTC855X FAMILY,LTC8551,LTA8284,LTA8281,LTA8282,LTP3631,LTP3633,LTR33,LTP3635,LTP3636,LTC72X FAMILY,LTP3637
思瑞浦(3PEAK)车规芯片选型指南(英文)
描述- Established in 2012, 3PEAK was listed on the Shanghai Science and Technolog y Innovation Board on September 21, 2020. The company is committed to the research and de velopment of high-performance, high-quality, and highly reliable integrated circuit products, including signal chains, power analog chips, mixed-signal front-ends, and embedded processors to provide customers with all-around solutions
型号- LM2904A-VS1R-S,TPL8032ADQ,TP1562AL1-SO1R-S,TPM27524Q-SO1R-S,TPA2031Q,TPT1042V-SO1R-S,TPL803133Q-DF6R-S,TPT7742-SOBR-S,TPH2861-DF4R-S,TPR6040F30-S3TR-S,TPM2025Q-FC1R-S,TPT1042Q-SO1R-S,TPA1881Q-S5TR-S,TPR6040F33-S3TR-S,LM2902A-TS2R-S,TPR33XX,TPA8001-SOAR-S,TPA8003-SOAR-S,TP1564AL1-SO2R-S,TPL905236-S5TR-S,TP2262L1-SO1R-S,TPT1043Q-SO2R-S,TPT1051VQ-DF6R-S,TPR6040FXX,TPT1051Q-SO1R-S,TPT774X,TPL803133Q-EV1R-S,LM2903DQ-SO1R-S,TPT1051Q-DF6R-S,TPL8652FQ-ES1R-S,LM2903A-SO1R-S,TPT1051VQ-SO1R-S,TPR3330-S3TR-S,TPT7741F-SO3R-S,TPL803133Q-ST4R-S,TPT7741F-SOBR-S,TPL803450Q,TPL803450Q-EV1R-S,TPR3312-S3TR-S,TPL803150Q-ST4R-S,TPL905218-S5TR-S,TPL905233-S5TR-S,TPT7720-SO1R-S,TPR6040F25-S3TR-S,TPT1043Q-DFKR-S,TPL905215-S5TR-S,TPR6040F20-S3TR-S,TPL8651Q-ES1R-S,LM2901A-SO2R-S,TPT1145NQ-SO2R-S,TPL9052XX,TPL8031XXQ,TPA2644-SO2R-S,LM2904A-TS1R-S,TPM650XAQ,TPL8151ADQ-ES1R-S,TPL865XQ,TPT772X,TPT1042Q-DF6R-S,TPT7721-SOBR-S,TPT1044V-SO1R-S,TPT1145Q-SO2R-S,TPR3325-S3TR-S,TPR431B-S3TR-S,TPR6040F50-S3TR-S,TPW3188Q,TPT7742F-SOBR-S,TPA1882Q-VR-S,TPR3320-S3TR-S,TPL910ADJQ,TPT7740F-SO3R-S,TPC5120Q-TS7R-S,TPL803150Q-DF6R-S,TPL910ADJQ-DF6R-S,TPV8368SAQ,TPA1882Q-SO1R-S,TP1561AL1-S5TR-S,TPA5561Q-S5TR-S,TPL905225-S5TR-S,TPL905228-S5TR-S,TPT7741-SSAR-S,TPL8151ADQ,LM2902A-SO2R-S,TP2261L1-S5TR-S,TPA2031Q-S5TR-S,TPM2025Q,TPL803150Q-EV1R-S,TPM27524Q-DF4R-S,LM2903A-TS1R-S,TPV8368SAQ-S6TR-S,TPT1145NQ,TP1562AL1-VS1R-S,TPL803133-ST4R-S,TPT104XQ,TPR3333-S3TR-S,TPT1042VQ-SO1R-S,TPL905230-S5TR-S,LM2903A-VS1R-S,TPM27524Q-EV1R-S,TPR6040F40-S3TR-S,TPM27524Q,TPT7721-SO1R-S,LM2901A-TS2R-S,TPM6501AQ-S5TR-S,TPL905212-S5TR-S,TPT7720F-SO1R-S,TPA188XQ,TPT1145NQ-DFKR-S,TPR431B,TPM6505AQ-S6TR-S,TPT7741-SOBR-S,TPA5561Q,TPT1051VQ,TPT1042VQ-DF6R-S,TPL8032ADQ-ES1R-S,LM2904A-SO1R-S,TPW3188Q-TS3R-S,TPC5120Q,LM2903DQ,TPR3340-S3TR-S
最大传输延时30ns, 4A灌/拉电流驱动能力的隔离驱动器 | 功率器件专场 世强硬创新产品研讨会
型号- SI88XXXISO-KIT,SI88241ED-IS,SI823HX,SI8281CD-IS,SI8642ET-IS,SI823X,SI827X,SI88621ED-IS,SI893X,SI8239X,SI875X,SI8285CD-IS,SI8920BC-IP,SI8281-KIT,SI86XXXT,SI86XXT,SI8285_86-KIT,SI8286CD-IS,SI8285,SI8281,SI886XXISO-KIT,SI86XX,SI87XX,SI8920,SI834X,SI88XX,SI8921,SI8900,SI8922,SI828X,SI838X,SI86XXTISO-KIT,SI826X,SI8920ISO-KIT,SI894X
AMC1200为什么常用电路推荐
AMC1200属于隔离芯的电压及电流采样芯片,可以参考Silicon Labs的SI8920的典型运用设计,属于差分式输入,输出,资料链接:https://www.sekorm.com/doc/617439.html;
技术问答 发布时间 : 2020-01-20
【应用】PFC电流检测的低成本方案:带隔离的电流采样芯片SI8920,高精度、小体积
目前的PFC设计通常需要检测环路的电压及电流,使效率达到最高化,对于PFC的电流检测方法通常会涉及到隔离问题,用带隔离的电流检测芯片会更好,Silicon Labs推出的SI8920具有高精度,小体积,低成本的优势非常适合PFC的电流检测芯片。
应用方案 发布时间 : 2019-11-01
变频器电机相电流检测方案采用电流检测电阻R(SENSE)+HCPL-7840电流检测光耦实现,想更换一款可pin to pin替代HCPL-7840的隔离器件,请问是否有合适型号推荐?
推荐Si8920BC-IP隔离容耦,有SOIC-16宽体封装和DIP8表面封装两种选择,其中DIP8封装可pin to pin替代HCPL-7840,产品特点如下:1、低压差分输入范围:±200mv;2、低信号延迟:仅0.75μs;3、输入失调电压0.2mv;4、增益误差<0.5%;5、卓越的漂移规格:1 μV/°C失调漂移、60 ppm/°C温度漂移;6、全数值范围内非线性误差:0.1%;7、高共模抑制75kv/μs;8、工作温度:-40℃~ +125℃;9、通过AEC-Q100认证。
技术问答 发布时间 : 2017-05-05
Silicon Labs(芯科科技)电源产品/定时器/IoT产品介绍
描述- 2020 April Sales Training Slides
型号- SI547,SI8422BB,SI545,SI546,SI549,XG12,XG21B,SI533XX,SI5383,XG21A,SI5342,SI5384,SI5341,SI536X,SI5347,SI5388,SI5389,SI532X,SI5348,EFR32FG22,CK440,EFR32BG22,SI5508,EFR32,SI5332-GM,SI534XH,SI5350,SI53471,SI53472,SI5392,SI5397,SI41XX,SI5351,SI828X,SI5357,SI537X,SI561,SI347X,SI562,SI560,SI565,SI566,SI5518,SI564,SI569,SI54X,XG1X,SI567,SI532XX,EFR32XG21B,SI823HX,SI538X,SI893X,BG22,SI534X,BGM220S,BGM220P,BGM220,SI51X,EFR32MG22,SI34071,SI522XX,SI834X,SI8920,SI5332,SI539X,SI88XX,SI8921,SI8922,SI5330,SI5335,SI8252X,SI3474,XG22,SI531X,XG21,SI540,SI5338,SI842X,SI830X,EFP01,SI894X,DB2000
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测试1.2/50us-8/20us组合波,10/700us-5/320us组合波,8/20us单波。能够模拟雷电瞬变引起的浪涌冲击抗干扰测试,最高电压达20KV,电流达20KA。点击预约,支持到场/视频直播测试,资深专家全程指导。
实验室地址: 深圳/上海 提交需求>
可根据用户的MOSFET管进行参数检测出具报告,静态参数最大电压:7500V、检测最大电流6000A;动态参数最大电压:3300V、检测最大电流:4500A。该测试标准满足GB、IEC及行业标准等,具备可靠性评估及老化实验能力。
实验室地址: 西安 提交需求>
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