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BQ25892/0

Other Parts Discussed in Thread: BQ25890, BQ25892

hi:

    我想咨询一下,在软件不介入的情况下,我使用单颗BQ25890给电池充电时,充电头无法输出12V,但是加上BQ25892后,适配器就可以正常输出12V,请问是为什么呢?不是说BQ25890/2可以兼容高通的QC2.0协议吗,还是说只有BQ25892可以兼容,麻烦解答一下我的疑惑,谢谢