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Original question:

TPS23755: Alternative Flyback Transformers

TPS23755: TPS23755EVM-894 alternative transformer

Tony Clifford
Prodigy 10 points
Part Number: TPS23755

Tool/software:

I am also looking for an alternative transformer. I am starting a design based on the TPS23755EVM-894. I can find no information about the original LDT0950-50 so I have no parameters to aim for. I see that the PoE13P-12L is not recommended in one thread, but in another, it looks like it is an acceptable alternative. There is also mention of a Wurth option too. Can you please send me details of the Wurth alternative and/or confirm if the PoE13P-12L is suitable or not.

Thanks

Tony

  • 0
    TI__Mastermind 37121 points

    Hi Tony,

    Thanks for reaching out!

    POE13P-12L, EP13-563, 7491199112 should all work here if reading the electrical properties. But TPS23755 normally applies primary side regulation (PSR) which need the PSR's transformer AUX has a better coupling with SEC than SSR transformers. This need transformer vendor to answer if these transformers are suitable for PSR or not. I would recommend you to reach out to the transformer vendor about this question. 

    Best regards,

    Diang