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UCC28065: Power management forum

Part Number: UCC28065
Other Parts Discussed in Thread: UCC28064A,

Hi Team,

Customer would like to know the difference of UCC28064A & UCC28065.

Could you please provide a comparison table between these two solution?


Patty Chuang

  • Hello Patty,

    There are only two significant changes to the UCC28065 compared to the UCC28064A:

    1) In UCC28065, the maximum programmable switching frequency has been doubled, from approximately 400kHz to 800kHz. (Low end both still at 20kHz).

    2) In UCC28065, the Tzcc Zero-Crossing Compensation function has been removed.  Additional on-time is no longer added near the line zero-crossings.  This avoids the overcompensation effect with modern MOSFETs and improves iTHD.

    All other features are the same in both devices.