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BQ24073充电时会把电源电压拉低,从而充电电流没有达到设定值

Other Parts Discussed in Thread: BQ24073

   各位好,目前在用BQ24073充电时会把输入电压拉低,5v会被拉到4.3v,从而导致充电电流达不到要求。这个是什么原因,望回复;ps:我把输入电压抬高,充电电流可以达到设定值。