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BQ24061电池充电问题咨询

Other Parts Discussed in Thread: BQ24061

最近在设计BQ24061电池充电电路的设计,按照数据手册上推荐的电路进行设计,只把6引脚ISET连接的电阻由1.13K改为15K,快速充电时,电池充电电流慢慢由50mA慢慢增大到68mA,电池电压到4.19V时,电流慢慢下降直到电池充满,电池在充电过程中,stat1为低电平,stat2呈现高组态,电池充满时,stat1呈现高组态,stat2呈现低电平。此现象符合数据手册描述。但是在预充电过程中,stat1、stat2都为高组态,按照数据手册说明,电池预充电时,stat1、stat2应该为低电平啊,但事实上连接的LED指示灯并没有亮,且无电池连接时,stat1、stat2呈现为高组态,事实上是stat1呈现高组态,stat2呈现低电平。请大家给予帮助,谢谢!