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LM5069在不断电时，插拔电源接口，容易烧毁LM5069，看我附件的原理图，输入是48V，是否跟输入端没接TVS有关？应该用多大封装和电压的TVS管？
Hi
是芯片的Vin烧掉了吗?
你好，输入电压正常时LM5069没法输出高电平驱动NMOS了，输出是低电平，更换一个LM5069就正常了。没法判断烧掉LM5069的那个管脚的
输入端的电压过冲测过吗？不过能打坏芯片这过冲还是太夸张了
