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关于BQ25504

Other Parts Discussed in Thread: BQ25504

bq25504的Vbat-ok怎么利用它!当它达到Ok的状态时,输出能给负载供电》当没到OK状态时,输出与负载断开!实现输出与负载的周期性开断!

  • 这个pin脚就是用来指示vstor(当pfet on的时候vstor的电压与vbat是几乎一致的)的电压是否小于你通过Rbatok设定的负载最低工作电压门限,即此时vabt的电压是否能够支持你负载开机工作,如果低于门限后,vbatok的跳变就是说明能量不够了,负载端的处理器准备做保存资料等关机保护动作。