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bq40z50预充电功能设置

Other Parts Discussed in Thread: BQ40Z50, BQ40Z50-R1

请问bq40z50的预充功能,PCHG_COMM设置为1了,电池电压放到2.5V了,也PCHG也不置位,不进入预充电状态,是什么问题呢?

设置预充电电压

到了设置的点也PCHG也不置位,不进入预充电状态,这是为什么?

另外,bq40z50-R1里面怎么没有PCHG_EN这个使能位?

技术手册里面有这个使能位

如果电池端电压达到0V了,如何从放电端充电,就是0V可充电