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WEBENCH® Tools/LM5023: LM5023MMX-2/NOPB

benson chang
Prodigy 30 points
Part Number: LM5023
Other Parts Discussed in Thread: UCC28C42

Tool/software: WEBENCH® Design Tools

Input voltage range: 350~750Vdc
output voltage: 150Vdc 
output current: 3A 
 Can LM5023 QR-flyback controller be used?
Are there design tools available for this design?
  • 0
    TI__Guru 66135 points

    Hello,

    The LM5023 does have design tools, reference designs and software models.

    You can find them at the following link.  

    Regards,

  • 0 in reply to Mike O'
    Prodigy 30 points

    It's show "The device&topology is not supported for output power greater than 100W in WEBENCH" after run  WEBENCH 

    and What can I do 
    My dc-dc converter specification is:

    Input :DC 385V~DC830V

    Output : DC 150V 3A =450W

    What is your suggestion?

  • 0 in reply to benson chang
    TI__Guru 66135 points

    Hello,

    Generally for greater than 250W you would go with a forwarded converter instead of fly back converter due to the high RMS currents.

    Your input range is roughly 2 to 1 so that is not a problem.

    How about a 2 switch forwarded using the UCC28C42.  If you need help designing please start a new thread with UCC28C42 in the title so we can assign the correct TI applications engineer to help you with the design.

    Regards,