UCC25800-Q1: OCP triggering when 3 parallel transformers used to get three outputs.

Tool/software:

Hi steven, 

I tried simulating this ucc25800 with three transformers in parallel to get three isolated outputs, as you said in another thread, i have given a source supply of 24V with a slow start (0-24V with raise time of 15mS). but what i observed is, still ocp  is triggering, sometimes at startup it self, sometimes after 1-2 mS latter.am giving the SW pin current waveform for your ref. 

Red: DIS_FLT_N pin voltage 

Green: SW pin current

Blu: Input voltage (24V with slow start)

Load : ucc 21551 based Driver circuit nearly 1W each