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UCC28740: about Transformer for PMP30435

ACGUY
Guru 11170 points
Part Number: UCC28740
Other Parts Discussed in Thread: PMP30435

Hello E2E,

Please let me know about PMP30435.
I tried calculation about transformer using sluc487. Calculated result is Lp=10mH over. The calculation results and the specifications of the TID transformer do not match.

Can I have a design calculation document for transformer of PMP30435?

Regards,
ACGUY

  • 0
    TI__Guru* 85506 points
    Hello Acguy,

    The design calculator was used to design the EVM and the calculations should match that design. However, there is not only one way to design a flyback and the design constraints maybe a little different.

    I have forwarded this inquiry to the designer of the PMP30435 so they can share how the transformer turns ratio was calculated.

    Regards,

    Mike
  • 0 in reply to Mike O'
    Guru 11170 points

    Hi Mike,

    Thank you for your cooperation. If you had any update, please let me know.

    Thanks,
    ACGUY

  • 0 in reply to ACGUY
    TI__Guru* 85506 points
    Hello AC Guy,

    I thought, I had assigned this post too f-mueller@ti.com, so he could answer your question regarding the transformer. Mr Mueller is the designer of this EVM an assigned the post too him so he can answer it for you.

    Regards,

    Mike