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bq24133两节电池不能充电,输入12V/2.5A, 急

Other Parts Discussed in Thread: BQ24133EVM-715-15V

各脚的电压如下:
BATDRV = 12V

ACDRV = 18V

OVPSET = 1.12V

ISET = 0.32V

ACSET = 0.72V

TS = 1.92V 

TTC = 1.44V

AVCC = 11.84V

VREF = 3.23V

REGN = 5.92V

CMSRC = 12V

STAT 一直交替闪烁。

现在的问题是,接上电池时,SW没有波形,电压一直为7.28V

请帮忙分析下什么原因,急!

0451.波形和电路.pdf