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bq40z50-r1恒流充电转至恒压充电后IC温度很快升高

Other Parts Discussed in Thread: BQ40Z50-R1

bq40z50-r1在整个充电过程中,恒流充电温度正常,但转至恒压充电后IC温度会快速升高达到保护值,目前为3串电池,恒压充电时电流从恒流2A降至1A左右IC温度就会显示升到45度,从而达到IC内部过温保护停止充电状态(空调房约25度环境,并且电池未封壳),设置的LED灯为4个LED灯,电流3.75mA(LEDC1,LEDC0为1,1),请问这是什么现像,在恒流充电时很正常。另外电池的平衡功能是关闭的没有开启。