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TCP4056E是一款1A线性锂电池充电电路,采用涓流/恒流/恒压充电方式。充电电压设定为4.2V,充电电流可通过外部电阻设定。当电池电压达到设置值后,充电电流降至设定值的1/10时,TCP4056E 停止充电,芯片进入待机模式。当去除电源后,TCP4056E自动进入低功耗待机状态。