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BQ76940 B5,B10耗电问题

Other Parts Discussed in Thread: BQ76940

用BQ76940设计了一个电池采样电路,测试发现了一个疑问,B5和B10两个地方耗电不一样,按照BQ系列芯片设计,每5串为一组,B5和B10的耗电应该是接近一致才对,而实际测得是B5最大17.8uA,B10最大5.6uA,那么请问这个是否正常。