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BQ24610: BQ24610充电截止电流和预设不一致

Part Number: BQ24610

Hi

   我司采用BQ24610,输入12V,输出8.4V。最大充电电流5A,截止电流200mA。该方案已经使用批量10K左右,但近期新生产出现4PCS充电,在1A左右停止充电,电池未满。

交叉验证问题跟随PCBA走,想咨询下,应该怎么排查该问题,哪些电路可能会改变截止充电电流。

已排查:

1. Iset2电压0.187V和正常一致

2. 截止后电池更换到其他单板,可以继续充电到预设200mA截止