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LM5145不能正常工作



刚设计了一个PWM降压模块,24V电源输入,输出15V,10A,使用TI的WEBNCH生成电路,画板焊接后,直接给24V电源,MOS管Q1直接就烧了。

把Q1、Q2和L1去掉后,HO一直是6V高电平,LO有脉冲信号。

不知道是哪儿的原因?请多指教!!