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TPS23755: Recommended transformer

keisuke
Intellectual 475 points
Part Number: TPS23755

Hello,

I'm designing PoE PD circuit with the TPS23755.

If I design the output voltage to 24V, Could I use a transformer such as "POE13P-24"?

The specification of POE13P-24 are as follows.

 inductance : 127uH

 turn ratio pri : sec : Bias = 1 : 0.667 : 0.5

Regards,

  • 0
    TI__Mastermind 21320 points

    Hello,

    The TPS23755 uses primary side regulation, which means it does not use the traditional feedback network with an opto-coupler. 

    Primary side regulation requires a specific transformer construction in order to maintain accurate load regulation. 

    Please work with the transformer vendor in the EVM to create a 24V transformer. 

    If this post answers your question, please indicate so by marking this thread as resolved. Thank you.

     

    Regards, 

     

    Michael P.

    Applications Engineer

    Texas Instruments