TI UCC28780 Active Clamp Flyback Controller
Idk @Jonathan Xie found this chip while researching background info on active clamp flybacks
UCC28780
Datasheet: SLUSD12 Data sheet | TI.com
Example Implementation: https://www.ti.com/lit/an/sluaa60/sluaa60.pdf?ts=1598622178266
Accompanying background videos:
Comparison of GaN and silicon FET-based active clamp flyback converters | TI.com
Apparently these chips also work well together with it:
UCC5304
UCC24612
example schematic found in the example implementation