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UCC28780EVM-021: Transformer winding number

Part Number: UCC28780EVM-021

Hi experts,

The transformer in the UCC28780EVM-021 user's guide, part number is 019-8916-00R.

I searched about this transformer datasheet and not find winding number only turn ratio. Could you please provide the winding number which customer wants? And magnetic core specs if you happen to have.

Thanks,

Victoria

  • Hello Victoria, 

    The EVM transformer turns for PRI : SEC : AUX-pri : AUX-sec corresponding to ratios 1 : 0.19 : 0.14 : 0.1 are 21T : 4T : 3T : 2T (the ratios are rounded).
    The core shape is RM8/ILP and the core material is TDK N49.   

    Regards,
    Ulrich