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Compensation circuit of UCC28C43

takahiko yokota
Mastermind 7135 points
Other Parts Discussed in Thread: UCC28C43

Hi

There are not stated about calculation method about Ccomp of UCC28C43 in datasheet.
Could you tell me it?

Best regards
Yokota

  • 0
    TI__Mastermind 31580 points
    Hi Takahiko-san,

    Can you tell me more about your application and give me more details on your question ? I think you are asking about the control loop compensation but I just want to be sure.

    Thanks

    Peter
  • 0 in reply to Peter Meaney
    Mastermind 7135 points

    Hi Peter-san

    I'm sorry I couldn't hear the application from my customer because this project isn't official.
    They evaluates UCC28C43 by their circuit.
    But when Ccomp is 1000pF, comp termial is oscillation, when Ccomp is 1500pF ~ 6800pF, comp termial is state
    and when Ccomp is 10000pF, comp termial is pulsation and duty is changing(attached document).
    So my customer wants to know calculation method of adequate Ccomp and phase margin.

     

    UCC28C43.pdf

    Best regards,

    Yokota