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急!BQ24610无输出无法充电,空载STAT1和STAT2都为ON

Other Parts Discussed in Thread: BQ24610

这是用BQ24610做的6串锂电池的充电器电路板,充电电压25.2V  电流4A,输入电压28V。试验出现的问题是输出电压只有4.0V左右,而且空载时STAT1接的发光二极管亮,但是并没有连接电池。测量HIDRV的PWM波形不正常,占空比似乎很小很小。

原理图-Model.pdf