MAX4081TASA+T: FAQ

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  • 双向电流检测芯片MAX4081在检测反向电流的时候不能正常工作

    问题描述: 使用MAX4081T(Gain = 20V / V)做双向电流检测,系统设置为Vcc=5V , Ref1A=3.3V, Ref1B=Gnd , Rsense = 5mOhm,这时根据公式,输出应为=.±××() 但实际的测试结果是 1)当负载电流为0时,输出1.65V(正常) 2)当负载电流为 +3A 时,输出1.95V(正常) 3)当负载电流为 -3A 时,输出1.65V(不正常…

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