Part Number:BQ24780S
先把电池插入7.6V,此时BATDRV为13.6V。再插入AC 19V,BATDRV又变为25.6V,导致VSYS和BAT短接,充电大电流,还会损坏电池
Star Xu:
您好,正常情况下不会出想这种情况,adapter 接入需要满足下面的内容:
The conditions for BATDRV to rise up to VBATSRC+6 V and turn the BATFET on are listed in Section 7.3.2 of the datasheet on System Power Selection:
,
? ?:
电路图如上,帮忙看看有没有问题?我没有用ACFET/RBFET,这样有影响吗?我先插入电池,再插入Adapter后Adapter直接捅到了BAT,BATDRV此时被抬高了,导致Adapetr大电流灌入到电池。
,
Star Xu:
您好,正在查询,稍后回复。
,
Star Xu:
您好,That is possible if the input is plugged in very fast and the BATFET is on. Typically, we recommend having the ACFET/RBFET there.