Tool/software: WEBENCH Design Tools
I am using UCC2813-3-Q1 for a simple forward converter. I find that the soft-start is not working. The first output pulse appears as COMP pin is around 1V. But the duty cycle is high. This IC comes with internal soft-start. I do not have anything external for soft-start. I also do not have any slope compensations since my application does not require above 45% duty.
Is there a correlation between the slope compensation and the soft-start circuitry?