We need a small, universal-input inexpensive auxiliary supply which can be shutdown when the main supply (PFC+LLC) is running. It will power the keep the microcontroller running to check for button press and the micro can turn on and off PFC+LLC as needed.
I found this: https://ac-dc.power.com/sites/default/files/PDFFiles/der258.pdf which looks pretty good for the application, but then I also ran across this https://www.digikey.com/product-detail/en/mean-well-usa-inc/IRM-01-5/1866-2998-ND/7704616 from Meanwell and wondered how the two solutions compared. Is there some benefit to using the discrete PI solution above the integrated module?
Thanks in advance for your input,