Part Number: BQ24780S
你好
这款在设计调试阶段,发现不充电。
测试如下
电池15.3V,充电电源20V
PIN4 25.5V
PIN5 3.3V
PIN6 在2.8V
V_SYS 20V,说明前端2个MOS管都导通了
PIN23为0V(示波器),这样下管G开关没有脉冲打开
PIN24 6V
PIN26 15.3V,PIN27为15.3V(示波器测试的),这里似乎应该是电荷泵开关,电感储能给电池充电,实际是直流(等于电池电压)
PIN18 15.3V
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