we are using LM5050-1 at below application.
our expectation：
- when normal operation，Q1 turns on at start up , and always on。
- when Q2 damaged in short, we use LM5050 to turn off Q1, to prevent the Vin applies to Vout.
but in our application：
- when Vin applies, Q1 will be turned on by LM5050，and Q1 Vgs=12V；
- but when there is no fault condition to OFF pin of LM5050, once Q2 and Q3 starts to work, especially applied load on Vout, LM5050 will turns off Q1.
CH1: Vin =40V, CH2: Vgs of Q1, CH4： Vout
can you please explain why LM5050 turns off Q1 ?
