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BQ24195的SYS引脚输出问题

Other Parts Discussed in Thread: BQ24195

各位专家好,BQ24195在外部DC掉电瞬间SYS引脚电压会有1个约100ms的下探时间,电压值下降2V多,导致外部MCU无法正常工作从而导致后端电源切换电路发生抖动,请问该如何消除这个时间?iic寄存器为默认设置,只是关闭了看门狗计时器。PMID未接负载。