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TPS2373-4EVM-758: modify the components to 12V/6A (70W) power PoE PD

Henry Wang3
Genius 3365 points
Part Number: TPS2373-4EVM-758
Other Parts Discussed in Thread: TPS2373, PMP21318, PMP20878, PMP21103

Tool/software:

Hi Sir,

My customer would like to modify the TPS2373-4EVM-758 (5V/14A) to (12V/6A) 70W power PoE PD function.

Which components need to change? could you please advise? Thanks!

Could they use the below transformer component for the 12V/6A function?

SPEC-ER2010-616-D (1).pdf

  • +1
    TI__Mastermind 37121 points

    Hi Henry,

    Thanks for reaching out!

    Below are the reference designs with TPS2373. You need to change the transformer and secondary side components and possibly the compensation RC as cycled areas. You can refer PMP21318 (www.ti.com/.../PMP21318) for more details. 

    Reference PD Topo Class Vout Iout Power
    TPS2373-4EVM-758 TPS2373-4 ACF 8 5 14 70
    PMP20878 TPS2373-4 ACF 8 24 3 72
    PMP21103 TPS2373-4  ACF 5 12 2.5 30
    PMP21318 TPS2373-4 ACF 8 12 6 72
    TPS2373-3EVM-024  TPS2373-3 Flyback 6 12 4 48

    The transformer parameters from your attachment look good for 12V/6A application. Besides, you can consider 750341794 Wurth or AA1045-AL from coilcraft. 

     Best regards,

    Diang