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BQ24133: BQ24133充电电压异常,设置cell为上拉至vref时,输出只有8.5V左右

Part Number: BQ24133

TI的工程师你们好,最近调试BQ24133的电源板时,出现以下问题;

1、电源的CELL脚上拉至VREF,充电电压应为12.6V,实测SW脚连接电感处电压8.5V左右;

2、STAT指示灯闪烁

电路如下图所示:15V电压实际为13.8V