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BQ25606: 电池电压小于2.5V后,VBUS在5V的情况下,sys脚没有电,而且不能给电池充电

Part Number: BQ25606

当电池电压在3V以上时,整个系统运行正常;当电池电压小于2.5V,充电时,sys脚电压才2.6V,不足以带动负载,而且电池也未充电。stat脚有时候是低电平,有时候是1Hz的高低电平。