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bq76930 放电过流保护问题

Other Parts Discussed in Thread: BQ76930

   在开发的过程中,遇到这样的问题还望解答,当我设置过流保护值为20A时,15A就保护,当设置为40A时30A左右就保护了,基本上是正确的保护值乘以个0.75它就保护,采样电阻为2.5毫欧,用万用表测的采样值是正确的,还有没有其他的因素导致这个偏移。应该怎么解决。