我用 UCC27714做一个逆变器,启机上电时,我MCU给IC的EN脚是低电平,正常IC的HO和LO都应该输出低电平才对,启机时,有时LI输入低电平时,LO却是高电平,这种情况不是经常有,偶尔发生,一发生就出现炸机现象,请问什么情况下会出现输入是低时,输出会是高电平状态?急急急!
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我用 UCC27714做一个逆变器,启机上电时,我MCU给IC的EN脚是低电平,正常IC的HO和LO都应该输出低电平才对,启机时,有时LI输入低电平时,LO却是高电平,这种情况不是经常有,偶尔发生,一发生就出现炸机现象,请问什么情况下会出现输入是低时,输出会是高电平状态?急急急!