This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

BQ25703A充电异常

Other Parts Discussed in Thread: BQ25703A

用的BQ25703A,配的3S电池,设置充电电流为2A;

实际使用中发现,当电池电压低于10.7V的时候,充电电流变小只有200mA;

当电池电压充到10.7V的时候,充电电流会自动变成设置的2A;

出现问题的时候(充电电流异常) inputVoltage (0xA)寄存器值一直是0;

测试发现:当电池电压低于10.7V的时候,拔下电池和适配器,再重新插入,不给设备做开机等任何操作,充电电流正常

一旦按下开机键,充电电流电流迅速异常,变成200mA

附件为电路图,麻烦各位大神协助解决一下

1778.BQ25703.pdf