Hi:
I use UCC256403 in a constant current LED driver.
When dim to light load,it looks like entered brust mode ,but output current has large ripple( Electronic load CV mode).
I tested IFB,source from 140uA to 215uA,so i think it not reallay entered brust mode,it just turned off because ifb>165uA
I don't know how can make it work in brust mode.
Thanks!