Hi team,
Could you teach maximum duty cycle over all temperature and input voltage?
I think that the condition of 85% spec. at data sheet is all temperature range, but Vin = 12V.
I checked how LM3405A work when FB=0V at room temp. and the result is blow.
Vin 14V -> 86.9%
Vin 12V -> 84.8%
Vin 10V -> 82.0%
Your answer will be helpful because I am considering the detection voltage range in order to detect failure when output is open.
Best regards,