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BQ76930: 均衡开启,电压采集不对

Part Number: BQ76930
Other Parts Discussed in Thread: TIDA-01093,

您好,TI的工程师们,我用2片76930级联组成20S方案,外部均衡,均衡电阻4R,电池组正常电压,单体4170mv,现在发现一个问题,B5均衡开启,B6电压采集到不对(4450mv),会触发过压保护阈值4300mv,同样,B6均衡开启,B5电压采集不对。经测试,在5串跟5串的临界处,均衡开启,相邻的串电压采集不对。对于20S方案,B5、B6、B10、B11、B15、B16中某串均衡开启,会影响其相邻串的电压采集,其他串开启均衡不会有任何影响,这会是什么原因导致的。