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LM5023: Modifying EVM for 24Vout (UCC24630EVM-636 )

Part Number: LM5023
Other Parts Discussed in Thread: UCC24630EVM-636,


We would like to modify the UCC24630EVM-636 to output 24V instead of 19.5V.

From what I've gathered so far we would need to modify these sections. Can you confirm?

  1. Quasi-Resonant circuitry
    1. R13, R14, C16
  2. Secondary Side Rectifier circuitry
    1. R15, R16, R17, R18, R19
  3. Feedback circuitry
    1. R22, R23, R30

Also, attached is a design for LM5023 from Webench for 24Vout. Can we just copy the component values for the QR and Feedback circuitry?

Thank you. To clarify, you don't need to calculate the values for me. I just want to make sure those are the only components I need to change, so that I don't miss something important.

Ryan B.

24V Flyback.pdf