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BQ24040指示灯

Other Parts Discussed in Thread: BQ24040用BQ24040给单节锂电池充电,CHG用电阻上拉,用万用表测量电池电压在4.192V时停止充电,但CHG脚始终为低电平,之前直接把LED接在CHG脚上是可以变化的,这是什么情况呢?