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BQ25703A: BQ25703A使用问题?

Part Number: BQ25703A

BQ25703A这颗芯片无法给电池充电的故障,具体现象如下:

插入充电器后,充电器端显示5V、0.7A左右的电流,经换算应该是系统的正常工作电流,实际到电池的电流应该几乎没有;正常的充电电流充电器端应该是5V、2A

我关机重启后也无法恢复,目前发现拔插一次电池后,充电电流恢复正常。麻烦帮忙看下设计是否合理?另能否否帮忙提供下寄存器说明?