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BQ40Z80 的AFE protection control Bits 7–4 默认1 过流 短路保护电流反而不准



AOLD 我配置0x04 ,1mR采样电阻,19.4A 保护,我最开始是RSTRIM (Bits 7–4)  关掉的,实测就是19A保护,18A不会保护,在范围内。

后来我看到有描述RSTRIM (Bits 7–4): Unsupport function. Should leave the default setting 0x7. Changing this setting may
cause an error to the AFE current protection accuracy.

如果关闭了,会引起错误。我就打开了。但是 在15A 都会保护了,我反复测试,就是这回事。

 索性,我还是关掉了。