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UCC29002: Equation different between DS of UCC29002 and app note

Ben Kuo
Expert 7570 points
Part Number: UCC29002

Dear expert,

I find there are some different between UCC29002 datasheet and app note-SLUU137B.

Could you help me to figure out which one I should use in my current design?

UCC29002 datasheet:

cid:image002.png@01D3A1D3.0A1F4830

 

SLUU137B:

cid:image015.png@01D3A1D3.0A1F4830

UCC29002 datasheet:

cid:image016.png@01D3A1D3.0A1F4830

 

SLUU137B:

cid:image017.png@01D3A1D3.0A1F4830

 

UCC29002 datasheet:

cid:image018.png@01D3A1D3.0A1F4830

SLUU137B:

cid:image014.png@01D3A1CD.E25D4F90

Thanks!

Ben

  • 0
    TI__Expert 7570 points

    update the "different part" picture

  • 0 in reply to Ben Kuo
    TI__Mastermind 34465 points

    Hello Ben,

    The datasheet recommends a particular method of calculating compensation component values that result in a crossover frequency of one tenth the individual module crossover and the application note uses a simpler method of calculating the compensation components that results in a crossover frequency of one hundredth the individual module crossover frequency.
    The designer of the reference design in the application note chose this method based on their particular design requirements for a lower frequency system response.
    If you wish to use a more generic optimized response then you should use the equations in the data sheet

    Regards

    John