Hello Wayne,
I was unable to find any reference designs or application reports that use the UC2861 or the UC3861.
I suggest that your customer consider using another controller.
Webench should be able to help with this selection.
webench.ti.com/…
Hi Bing
I need a controller who with a vco, not a fase shift because these I have models for, like the UC 3875 and 79, I want to try a resonant pwm with adjustable frequentie like the UC3861 these however are not made anymore, I need a trustable controller…