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BQ24640充电电压没有达到设定值

Other Parts Discussed in Thread: BQ24640

用BQ24640给超级电容充电,4个2.7V电容串联,设置电压为10.3V,但是输出电压只有0.75V,初始认为是焊接问题,但是检查没问题,两个MOS的G级电压为0V,但是上桥臂MOS  DS有压降。

PCB图如图,是布局布线问题吗,因为是单层板所以有些地方不是很好。