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求助,BQ78350无法打开MOS

Other Parts Discussed in Thread: BQ76920, BQ78350, EV2400

各位大神,
        大家好!
       用bq78350+bq76920管理4串磷酸铁锂电池,通讯已经OK了,能正常采集4个电压值。
       但是MOS管一直打不开。刚开始的时候,AFE+OVRD旗标是举起的,我将该功能Disable后没有报警了,然后FET_EN也有使能,MOS管还是打不开,如附件图片
       请帮忙看下,谢谢!