【经验】思瑞浦双通道比较器LM2903A用于光伏微逆系统过欠压检测误动作问题分析

时间： 2023-06-22 来源：世强

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客户的一款单相600W小功率光伏逆变器项目，需要用到一颗双通道比较器，用于在宽电压范围内从单电源运行，构成过欠压窗口比较器，推荐思瑞浦的比较器LM2903A。客户在项目测试时发现在过欠压检测点附近比较器会有多个脉冲输出，原理图如下。

经分析，光伏板输出电压随日照强度等因素变化，在过欠压电压件检测点电压存在波动，致使比较器反复动作，该现象也会导致后一级电路反复动作，影响设备安全运行，参考波形如下。

建议客户在在过欠压检测点设置滞环，设置合理的环宽可有效避免这种问题，迟滞比较器原理如下。

迟滞比较器工作波形如下：

客户在修改过欠压检测方案后，经调试设置合理环宽，在过欠压检测点比较器输出稳定。

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型号- TPC112S8,TPM815202,TPM815201,TPP363070Q,TPM815203,TPW3125,TPP206080,TPP206081,TPA5582Q,LMV321TP,TPA1285,TPT1051HV,TPV8368Q,TPC112S1,TPT7730F,TPT7742F,TPA1286,TPA5522,TPC112S8U,TPA5521,TPC112S4,TPL910A,TPP363071Q,TPC6240,LM324A,TPW3111,TPW3115,TPH2865Q,TPL6305-S,TPA5571Q,TPL51201-S,TPV6823,TPA6551N,TPA5512,TPT7731F,TPA5511,TPW3221,TPW3223,TP8485E,TPA183,TPM1525,TPC51701,TPT7740F,TPCMP251,TPCMP252,TPT1057VQ,TPL9308-S,TPS42Q20Q,TPW4425,TPQ80302,TPA5581N,TPA1295,TPA191,TPC5120,TPC5121,TPT7741F,LM2903D,TPT7710F,TPT1462VQ,TPT7722F,TPW3188Q,TPC2192,TPC2190,LM339A,LM2903A,TPM81520,TPL8651Q,TPM23513,TPC114S1,TPA5601,TP1562AL1-S,TPL9305-S,TPH2861Q,LM2904A,TPS42S40Q,TPM2025Q,TPS14P50,TPA2681,TPA2682,TPT3232E,TPL51200,TPM8837C,TPL51206,TPL910Q,TPM0596,TPM27524Q,TPP364092Q,TPC2160,TPC2161,TPA5621,TPM8837E,LMV324TP,TPT7720F,TPP2020,TPT7721F,TPL9053-S,TPM6501Q,TPM2015Q,TPL8033,TPL9208-S,TPL8652Q,LMV358TP,TPL8151,TPL8031,TPL51200-S,TPL8032,TPW4051,TPW4053,TPW4052,TPW4054,TPT1042VQ,TPT1255,TPL9052,TPL9053,TPT1256,LMV324B,TPA2644,TPP362072Q,TPA2641,TPA2642,TPQ50551Q,TPW4157,TPT485E,TP1561AL1,TPM6505Q,TPT485N,TPB4056A,TPB4056B,TPA2671,TPA2674,TPA2672,TPL9032,TP6001,TPP302080,TPA1882Q,TPP302085,TPP302084,TP6004,TPP302083,TPP302082,TP6002,TPP302081,TPM44273,TPB76200,TPT72616,TPT72617,TP17,TPT1044VQ,LMV331X,TPT1330,TPA8001-S,TPT1337,LM2901A-S,TPA1882,TPT1334,TPA1881,TPR6040,TPCMP271,TPCMP272,TPM6505,TPM2025,TPM8803,TPM6501,TP1564AL1-S,TPP363072Q,TP2191,TPTMP75,TPQ50571Q,TPP362071Q,LMV321B,TP5594,TP5592,TP5591,LMV358X,TP27,TPT1029Q,TP1562AL1,TPM2003,LMV358B,TPM2001,TPP362070Q,TPS05P50,LM2903DQ,LM2902A-S,TPA8000,TPT1028Q,TPA8002,TPA8001,TPP366091Q,TPQ5055Q,TPM23513B,TPM27517,TPA8003-S,TPP366090Q,TPM27533,TPP362083,TPP362084,TP1564AL1,TPP362085,TPA1831,TPT481,TPQ5057Q,TPA1832,TPT480,TPV710Q,TPP362080,TPM23514D,TPR434-S,TPP362081,TPT482,TPP362082,TPM27523,TPM27524,TPM27525,TPA1834,TPM27526,TPT488,TPL8032Q,TPT487,TPT486,TP2272,TPL740,TP2271,TPA8023,TPP60506,TPP60508,TPA626,TPAFE0808,TP2274,TPP361082,TPT1462Q,TPP361083,LM393A,TPA1864,TPA1862,TPP361080,TPA620,TPP361081,TPL8035Q,TPV8318,TPT9H111,TPA1861,TPT7730,TPT7731,LM2903A-S,TPL730,TPR70,TP5554,TPC2161M,TP5552,TP5551,TPR433-S,TPA7836B,TPV8308,TPL8034Q,TPT9H221,TPT7740,TPA8003,TPT7741,TPT7742,TPM215202,TPM215201,TP1282,TP1281,TPL720,TPL6305,TPP361064,TPM27201,TPP361065,TP1284,TPP361060,TPT1145Q,TPT1024Q,TPP361061,TPP361062,TPP361063,TPM215203,TPT7710,TPR6040-S,TP2261,TPL710,TPP00032,TPP00031,TP5534,TP1561AL1-S,TP5532,TP2262,TP5531,TPL8151-S,TPR433Q-S,TP2264,TPT7722,TPR50,TPT7720,LM2904A-S,TPT7721,TPM23514S,TPA8101,TPM5350MQ,TPP60308,TPL910A-S,TPL820,TP2112,TPK1032,TPM27224,TPM23514M,TPK1031,TPH2502,TPR434Q-S,TPH2501,TP2111,TPH2504,TPH2503,TPT1022Q,TPM27221,TPH2861,TPP05608,TPR33-S,TPM27217,TPL8031Q,TPM23514V,TPM21520Q,TPW4066,TPA6270,TPL810,TPA6271,TPL930,TP2124,TPT1057Q,TPM8860,TP2122,TPT1021Q,TP2121,TPT1042,TPR31,TPT1043,TPR33,TPA1811,TPT1051VQ,TPA1812,TPM8866,TPL8151Q,TPR35,TPA6581,TPA6582,TPC116S4,TPV708,TPV706,TPL920,TPA2031Q,TPC116S8,TPAFE51736S8,TPW1221,TP1242,TP1241,TPT1044Q,TPT4089,TPT71050,TPQ051007,TPP364090Q,TPC116S1,TPC502200,TPT7481,TPT7482,TPL9052-S,TPL910,TP2582,TP2581,TP2584,TPT1043Q,TPM5350BS,TPT1042V,TPM5350S,TPP364091Q,TPV821,TPT7487,TPT7488,TPM5350M,TP2262-S,TPM5350BM,LM2901A,TPV809,TPCMP761,TPCMP762,TPCMP764,TPV803,TPT1042Q,TPT4181,TPL9218-S,TPB7461,TPB7462,TPB7460,TPV811,TPV812,TPV810,TPQ05100,LM2902A,LMV393X,TPT71044,TPW3157A,TPA6584,TPM27282,TPAFE5162,TPC5180,TPAFE5161,TPAFE5160,TPT10283Q,TPAFE51760,TPP363080,TPP363081,TPT75176B,TPP363082,TPP363083,LM331A,TPT75176H,TPA2296,TPR431,TPA6534,TPR432,TPA5561,TPA5562,TPT75176A,TPA6531,TPA6532,TPT1051H,TPT1051Q,TPT9L484,TPT1145NQ,TPA6531N,TPAFEA008,TPC5121Q,TPC5160,TPC5161,TPT10285Q,TPM16050,LM321A,TPA5572Q,TP07A,TPA2295C,TPL8032-S,TPA6551,TPA6552,TPA6554,TPL5031,TPA5581,TPA5582,TPQ051004,LM358A,TPQ051003,TPQ051006,TPP366092Q,TPQ051005,TPQ051002,TPM21520,TPT4032,TPA5561Q,TPT4031,TPR431-S,TPM2803,TPC5120Q,TPV8348

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数字隔离器 RS485隔离器 CAN隔离器 I2C隔离器隔离放大器隔离调制器线性产品运算放大器特殊放大器传感器接口芯片比较器模拟开关 I2C接口IC CAN收发器 LVDS接口IC RS232收发器高精度ADC 高精度DAC 高速ADC 高速DAC 数模转换器 LDO 电压基准监控电源电源时序控制芯片复位芯片集成看门狗复位芯片直流马达驱动步进马达驱动隔离栅极驱动非隔离栅极驱动 DCDC 降压转换器升压转换器线性充电芯片电池保护芯片

代理服务线上商城技术资料

【技术】迟滞比较器电路设计思路解析

绝大多数比较器中都设计有滞回电路，通常滞回电压为5mv~10mV；这个内部的滞回可以避免由于输入端的抖动所造成的比较器输出振荡。但如果信号抖动较大，内部滞回将无法起作用，需要外部增加迟滞电路来减缓抖动引起的输出跳变。

2021-08-25 - 技术探讨代理服务技术支持采购服务

模拟电源的春天要等到2026年？

模拟电源是电路中的基础器件，也是功能电路不可或缺的一部分，因此被称为行业的晴雨表，也更容易受到终端行业景气度的影响。目前，国产模拟电源器件厂商还在快速成长期，产品丰富度和TI、ADI等厂商还有着很大的差距，这也导致同一行业周期下，各家厂商的悲喜并不相通。但随着整合并购和末位淘汰，最终国产模拟电源厂商的感受会逐步向TI靠拢。

2024-10-14 - 行业资讯

思瑞浦（3PEAK）汽车应用线性/转换器/电源管理产品选型指南

描述- 3PEAK is committed to the research and development of high-performance, high-quality, and highly reliable integrated circuit products, including signal chains, power analog chips, mixed-signal frontends, and embedded processors to provide customers with all-around solutions.

型号- TPM27524Q-SO1R-S,TPQ50571Q-QFNR-S,TPL803133Q-DF6R-S,TPA1882Q-VR-S,TPA5562Q-VS1R-S,TPT1029Q-DFCR-S,TPC5120Q-TS7R-S,TPT1044Q-DFCR-S,TPT1029Q-SO1R-S,TPM2025Q-FC1R-S,TPL803150Q-DF6R-S,TPL910ADJQ-DF6R-S,TPT1042Q-SO1R-S,TPS42S40BQ-TSAR-S,TPA1882Q-SO1R-S,TPA1881Q-S5TR-S,TPA5561Q-S5TR-S,TPL853650Q-TSBR-S,TPA5562Q-SO1R-S,TPT1057Q-SO1R-S,TPV710NZQ-S5TR-S,TPQ5055Q-DFTR-S,TPT1044Q-SO1R-S,TPT1057Q-DFCR-S,TPT1462VQ-DFCR-S,TPT1044VQ-SO1R-S,TPT1024Q-QFXR-S,TPA2031Q-S5TR-S,TPC5121Q-TS8R-S,TPM27524Q-DF4R-S,TPT1051VQ-DF6R-S,TPT1043Q-SO2R-S,TPL803150Q-EV1R-S,TPT1021Q-DFCR-S,TPT1051Q-SO1R-S,TPL803133Q-EV1R-S,TPV8368SAQ-S6TR-S,TS2903Q-SO1R-S,TPA5572Q-VS1R-S,TPT1462Q-DFCR-S,TPA5571Q-S5TR-S,TPM5350MQ-SOAR-S,TPT10285Q-SO1R-S,TPT1022Q-DFKR-S,LM2903DQ-SO1R-S,TPT1051Q-DF6R-S,TPL8652FQ-ES1R-S,TPT1057VQ-SO1R-S,TPT1051VQ-SO1R-S,TPM2015Q-FC1R-S,TPA1862Q-SO1R-S,TPT10283Q-SO1R-S,TPT1042VQ-SO1R-S,TPL803133Q-ST4R-S,TPL803433Q-EV1R-S,TPL803450Q-EV1R-S,TPQ50551Q-DFTR-S,TPT29539Q-TS5R-S,TPM92611Q-EV1R-S,TPL855650Q-TSCR-S,TPL803150Q-ST4R-S,TPS42S40AQ-TSAR-S,TPM27524Q-EV1R-S,TPM6505BQ-S6TR-S,TPM6501AQ-S5TR-S,TPA5571NQ-S6TR-S,TPT1022Q-SO2R-S,TPT1043Q-DFKR-S,TPL855633Q-TSCR-S,TPT1044VQ-DFCR-S,TPL853633Q-TSBR-S,TPT1057VQ-DFCR-S,TPL8651Q-ES1R-S,TPT1145NQ-SO2R-S,TPT1462VQ-SO1R-S,TPT1145NQ-DFKR-S,TPM6505AQ-S6TR-S,TPT1462Q-SO1R-S,TPT10285Q-DFCR-S,TPL8151ADQ-ES1R-S,TPA1861Q-S5TR-S,TP28Q-VS1R-S,TPT1042VQ-DF6R-S,TPL8032ADQ-ES1R-S,TPW3188Q-TS3R-S,TPT1042Q-DF6R-S,TPT10283Q-DFCR-S,TPA5572Q-SO1R-S,TPT1021Q-SO1R-S

2024/3/12 - 思瑞浦 - 选型指南 - Rev.3 代理服务技术支持采购服务

3PEAK引脚对引脚产品（2020）

描述- 该资料详细列出了3PEAK公司2020年的元器件产品线，包括低压开关、高压通用开关、高压比较器、电流信号检测放大器、复位芯片、电流/功率监测芯片、高压低功耗LDO、低压通用LDO和低压低功耗LDO等类别。每种产品都列出了其型号、竞争对手的型号以及主要目标市场。

型号- TPW4051,MAX3232E,TPW4053,AZRS485,WL2852,TPW4052,TPV706,WL2853,WL2855,NJM4580,SN74LVC1G3157,NCS21X,WL2851,TRS3122,S-1206,SGM2040,LMV358,ME6208,NCP114,ECH485,ME6209,SGM2200,SGM2202,SGM2201,TPS709XX,SGM2204,RT9013,SGM2203,ME6203,ME6201,TPS706,LM324A,TP2582,LMV324B,HC4053,HC4052,MCP1700,HC4051,SGM2032,TPV6823,SGM2034,SGM2037,TPS797,SGM2036,ADM3485E,SGM2038,LM393,TPT487,NCP170,LM331AU,LM2901A,INA226,TPV809,TPL740,MAX3085,INA21X,TPV803,TPA626,TPT485E,TP8485E,ISL3152,TLV707,MAX487,INA220,LM393A,TL072,SIT3232,SGM2035C,TPA620,TL074,TPV811,TPV812,NCP177,HVD3082,SGM3157,TPV810,MAX3485E,WL2863,TPL730,TS391,WL2861,WL2862,LM2902A,SN75176A,SN75176B,TL082,TL084,TPW3157A,TLV702,TP181AX,ADM706,SIT485,HT73XX,THVD1500,GM3082,XR32220,BL3085,WL2815,TPL720,TPS3823,SGM809,WL2810,TLV704XX,LM2904,LMV321,LM339A,LM2901,LM2902,LM2903A,LM2903,SGM810,SGM811,LM331A,STM706,ISL83082,TPT75176,DIO6809,TL331,WL2805,WL2801,WL2803,ST3232E,LM358,TPL710,STM812,STM811,LM2904A,TP2262,STM810,TP2264,TPT3122,LMV324,NJM4558,TRS3232E,SP3485E,TPT3232E,XC6218,XC6216,WL2835,LM321,XC6209,ST3485E,LM324,TPL820,STM803,SGM706,MS3485,S-1313,TS5A3157,STM809,TP199,UM3085,RT9073,UM3483,LM321A,LMV321B,UM3486,SGM2021,ADM6823,XC6203,XC6202,XC6201,SGM2300,SGM2028,XC6207,XC6206,WL2825,WL2820,TPL810,DIO6810,LM358A,LM339,SGM812,BA4558,HVD11DR,LMV358B,UM3232,ADM3202,TLV742,HT75XX, HT71XX,SGM2019

2020/03/27 - 思瑞浦 - 对照表代理服务技术支持采购服务

思瑞浦全矩阵车规产品方案，赋能绿色智行

思瑞浦受邀出席由焉知汽车主办的第四届焉知汽车年会，业务拓展经理犹家元先生发表主题演讲《智驾时代，思瑞浦电源方案助力车载摄像头技术创新》，介绍思瑞浦极具竞争力的电源产品方案组合，并分享思瑞浦为推动整个汽车行业向绿色可持续方向发展所做出的努力与成果。同时，思瑞浦凭借卓越的汽车产品性能和稳定的质量品质，通过严格的筛选与评审，荣获焉知汽车知鼎奖“智能驾驶科技创新奖”。

2024-10-09 - 应用方案代理服务技术支持采购服务

3PEAK HERO产品（引脚对引脚）

描述- 该资料详细列出了3PEAK及其竞争对手的多种元器件产品，包括放大器、开关、复位芯片、比较器等，涵盖了高压、低压、通用市场、工业、通信、安防、音频、家电等多个应用领域。资料中对比了各产品的型号、所属段、主要目标市场以及竞争对手的产品信息。

型号- TPW4051,TPW4053,TPW4052,TPV706,NJM4580,SN74LVC1G3157,S-1206,LMV358,NCP114,ME6209,SGM2202,RT9013,TPS706,LM324A,TP2582,TPS709,LMV324B,HC4053,HC4052,MCP1700,HC4051,SGM2035,TPV6823,SGM2036,LM393,NCP170,LM331AU,LM2901A,TPV809,TPL740,MAX3085,TPV803,TP8485E,TLV707,ISL3152,MAX487,LM393A,TL072,TL074,TPV811,NCP177,TPV812,HVD3082,SGM3157,TPV810,TPL730,TS391,WL2862,LM2902A,NCP716,TL082,TLV704,TL084,TLV702,TPW3157A,HT73XX,ADM706,THVD1500,GM3082,BL3085,WL2815,TPL720,TPS3823,WL2810,SGM809,LM2904,LMV321,LM339A,LM2901,LM2902,LM2903A,LM2903,WL8078,SGM810,SGM811,LM331A,STM706,ISL83082,DIO6809,TL331,WL2803,LM358,TPL710,STM812,STM811,LM2904A,TP2262,STM810,TP2264,BA4580,LMV324,NJM4558,LM321,XC6209,LM324,TPL820,STM803,SGM706,TS5A3157,STM809,UM3085,UM3483,LM321A,LMV321B,ADM6823,XC6202,SGM2300,SGM2028,XC6207,XC6206,TPL810,DIO6810,LM358A,BL8064,LM339,SGM812,BA4558,HT71XX,LMV358B,HT75XX,SGM2019

2019/11/12 - 思瑞浦 - 技术文档代理服务技术支持采购服务