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30串BMS调试发现电压采样输入电阻(1K)有随机被烧坏的可能



30串电路,使用76940两片级联,基本功能已经实现,但是在调试中发现,板卡在待机一段时间后电压输入电阻有时会坏一个或几个,且芯片该路的采样不到准确的电压,或偏高,或偏低。我的电阻是0603封装,1K阻值的。请TI的大师帮忙分析一下原因