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TPS23734: TPS23734-EVM

Michael Stamler
Prodigy 25 points
Part Number: TPS23734
Other Parts Discussed in Thread: PMP23278

Tool/software:

Hello to everyone,

I am designing a POE based on the TPS23734 controller. The EVM implements 5 volt output but I need 12 volts. Can anyone tell me how to do this? 

I assume that the resistor divider R50/R53 must be modified with new values, but in addition to this are there other implications affecting, say, the transformer?

10x

Michael Stamler

  • 0
    TI__Mastermind 37121 points

    Hi Michael,

    Thanks for reaching out!

    PMP23278 (www.ti.com/.../PMP23278) is a 12V/2.1A  PoE with ACF converter using TPS23734. You can refer this to design your PoE.

    If you want to modify TPS23734-EVM, not only need change the feedback of resistor divider, you also need to change transformer with correct turns ratio and rating, FETs, snubber, gate driver circuit, output caps...

    Best regards,

    Diang