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UCC28704: Trans

Part Number: UCC28704

Dear team,

The result of the transformer calculation of the datasheet (Lp=5mH, NPS=13) and results of WEBENCH are different.
Which should I design?
WBDesign3_7V0.7A_120-250Vin.pdf

Regards,
PAN-M

  • Hello,

    Both designs should work.  The Excel design tool and the Author of the Webench tool may have different design strategies.

    They could be using different frequencies and Dmax times or even allowing different input ripple bulk voltage.

    Regards,

    Mike