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BQ25703A输入电压设置问题

1.The DC offset is 3.2 V(0000000).这句话中的3.2V指的是什么,是说在3.2V的基础上加吗?例如我设置寄存器的值是1024mv,则输入电压为(3.2+1.024)V

2.设置输入电压是否是用于开启VIN-DPM,VIN-DPM是否只在插上适配器的瞬间起作用,如果解除了VINDPM,充电过程中输入电压再次降低时不起作用了