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UCC29002: UCC29002 what equation used to compute load share error vs total system load current

Anicet DJADA
Prodigy 105 points
Part Number: UCC29002

Dears TI's experts,

While comparing results on my board and TI's one, I see something happening between 13 and 21 Amp of system load current.

Here is the original TI's graphe : 

and here is my measurent

  1.  Can you guess what is happening between 13 and 21 Amp of system load current ?  Unless possibly reading errors on my instruments ?
  2. Which equation have been used to compute TI's figure ? 

Thank y'all

  • 0
    TI__Mastermind 21765 points

    Hi Anicet,

    The difference could be a combination of measurement or plotting. Either way, I think the load share data you are showing looks great. The data sheet claims better than 1% current share error at full load, which you are showing down to about 30% load. I believe the equation 1 is what should be considered.

    Regards,

    Steve M