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WEBENCH® Tools/UCC28740: NA

MOHD SALMAN
Prodigy 30 points
Part Number: UCC28740
Other Parts Discussed in Thread: UCC28742

Tool/software: WEBENCH® Design Tools

we  are facing issue in ucc28740 24volt 3a  is not work properly pls help.

  • 0
    TI__Guru* 86266 points

    Hello Mohd,

    I have moved this thread to the Webench tools organization, so someone from the Webench team can help you with this issue.

    Please note there is an excel design tool that you might be able to use to help with your design.  You can find it at the following link.

    Regards,

    Mike

  • 0 in reply to Mike O'
    Prodigy 30 points

    i have all changes as per calculator but issue still remains same  

    we are design 72W 24V/3A

  • 0 in reply to MOHD SALMAN
    TI__Guru* 86266 points

    Hello Mohd,

    Can you describe the issue you are having in more detail?

    Please not the 40W transformer will not work for a 72W application?

    The UCC28742 detects for input under voltage and output over voltage the same way the primary side regulated flyback controllers due from the aux winding.  There is an application note that give trouble shooting tips for this kind of sensing and how to resolve them at the following link. 

    Regards,