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LM5022: isolated flyback question - PMP20497 TI design

Part Number: LM5022
Other Parts Discussed in Thread: PMP20497, TL431

Hi expert,

My customer uses LM5022 in their PSE application(isolated boost). I found a TI design which is PMP20497 and could support 12Vin->54Vout/2A application. We are wondering how to calculate optocoupler feedback loop. Do we have document or calculation tool could design optocoupler feedback loop? Thanks a lot!!

By the way customer design is 12Vin->30V.

Best regards,

Ann Lien