在LM3409HV的Eval板上,使用EN脚,内部PWM调光,Vo电压输出波形中低电平不能降到0,仍为高电平,如图所示,请问这是什么原因?
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在LM3409HV的Eval板上,使用EN脚,内部PWM调光,Vo电压输出波形中低电平不能降到0,仍为高电平,如图所示,请问这是什么原因?