输入电压30V,给5颗18650充电,电池电压18V左右,接上后没反应,ON/OFF脚电压很高12V左右(ON/OFF悬空的),理论上悬空不上能工作么,不知道为什么?是芯片内部直接保护了吗?后来ON/OFF脚接地,接上电池后,电压都没输入,芯片很烫,然后就废了好像
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