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BQ40Z50-R1短路保护关不断

Other Parts Discussed in Thread: BQ40Z50-R1, BQ40Z50, BQ4050

我们使用BQ40Z50-R1进行3串电池管理,在进行短路保护时发现存在短路保护后有短暂的再开通又关闭的情况,另外有时短路保护没有保护:

1. 我们使用的Rsensor=2mΩ;

2. 配置参数为:ASCD1=83(28A/488us);ASCD2=35(39A/183us)

3. 短路电流有短暂的再开通又关闭的波形图:

4. 短路不保护波形图: