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BQ24005

Other Parts Discussed in Thread: BQ2005

锂电池的电压为8v,第一个指示灯状态老变。

第二个指示灯状态,用万用表测量其电压,竟然有4.2v的电压。

状态管脚不是三态门吗?

  • 第一个led闪烁,说明充电出现了错误,参考datasheet中充电流程图,逐一排除;对于BQ2005 ,state1和2都是开漏输出,所以输出high的时候,high电平的大小等于其外部的上拉源。