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PMP40988: asked the more detail of ti' new reference designs about PMP40988

Part Number: PMP40988

Dear expert,

I noticed that TI came out with a new reference design  PMP40988,a zvs totem pole pfc converter.

However, there is very little information available. Can I get more details on this reference, like technical guide, C2000 code ,or buy an evaluation kit.

I noticed this design uses the Ti GaN's OC pin to indicate the ZVS condition and would like to know the specifics,.

And what is the role of Lb1, Lb2, And Cb?

Hope to get a reply soon.

Best regards.