• Resolved

UCC28700-Q1: Dot convention on transformer

Part Number: UCC28700-Q1


I am using UCC28700-Q1 for DC-DC converter. In the typical application circuit of the datasheet (Page No. 17)  Primary & Auxiliary side of transformer are out of phase (as per dot conventions) but in attached design ( even in WEBBENCH design also) they are in phase.

So what should be the status of auxiliary?

And what precautions should be taken while constructing transformer with out of phase output ?in terms of start & end of winding, direction etc.