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bq24120充电故障请教

Other Parts Discussed in Thread: BQ24120, LM2596

我自己做了一块bq24120的电路板.使用下面的原理图制作..插上后工作正常,充电也可以..但是今天我发现一个情况,电池电压3.77V,显示充电故障(stat1 和stat2灯灭的,pg灯亮的).这个是什么情况?我把电池拔掉再插上又恢复了正常.我不想认为的去干预,有什么办法可以解决这个问题吗?