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UCC29002: calculating compensation values

ajayt
Genius 9555 points
Part Number: UCC29002

Hi Team,

I am using the formula in the data sheet for calculating the compensation components

 

 

 

My reference design is following  as PMP5326

 

 

So far, I can’t get the result of compensation like values in reference design(C55, R67).

 

If it’s possible, could you please give me an example of  the calculation so I can make sure what I understand where my error is

 

 

Thanks a lot,

 

  • 0
    TI__Mastermind 34465 points
    Hello Ajayt,
    If you look in section 8.2.2.4 of the UCC29002 data sheet you can see how the compensation value components are chosen.
    It is important to not that the total loop unity gain crossover must be set at least one decade below the measured crossover of the individual modules.
    PMP5326 does not use the UCC29002. Can you please check this number ?
    Regards
    John