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UCC29002: Questions about 3-parallel circuit.

David Kim2
Expert 2720 points
Part Number: UCC29002
Other Parts Discussed in Thread: UCC39002EVM

Tool/software:

Hi

Trying to load share by applying ucc29002 to 3 parallel power modules.
Do you have any designs to refer to?

power module: BMR685(flex)_50V 26A 

BMR685.pdf

Thanks

  • 0
    TI__Expert 5830 points

    Hello David,

    Please refer to the UCC39002EVM. The UCC39002EVM shows how to link 3x power supplies with 3 UCC29002 to a single load. I am not an expert on the Flex Power Modules but page 17 of the BMR685 datasheet shows a Vout+, Vout-, Sense+, Sense- and Vadj output as shown below. Use these pins to connect to the corresponding terminals on the UCC39002EVM.

    See section 7 on page 14 of the UCC29002 datasheet and the UCC29002 design calculator for help with design. Since your output voltage is 50V you will need an external bias supply. 

    Regards,

    Jonathan Wong