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BQ25895开发板PMP4451原理图疑问

Other Parts Discussed in Thread: BQ25895, PMP4451

我用BQ25895做一个快充板子,看BQ25895开发板PMP4451原理图,第三页,右下角en_out,wake_a,io_a这三个网络都是接到单片机上去的,这三个脚用两个mos管搭的电路有什么作用?是不是可以去掉