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BQ24630应用问题

Other Parts Discussed in Thread: BQ24630

应用BQ24630做了一个电池管理,发现空载时候有异常,PG信号是一个方波信号,STAT1电平有翻转。好不容易解决了这个问题,现在接入电池也是一模一样的问题,无法开启充电。查询了相关论坛,发现很多同仁也遇到无法开启充电模式,这是芯片有BUG还是什么问题导致,有什么办法解决,PCB已经做了一大批,郁闷