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Original question:

LM5155-Q1: unencrypted Pspice model

LM5155-Q1: LM5155 for flyback

Jeff Xie
Intellectual 1780 points
Part Number: LM5155-Q1
Other Parts Discussed in Thread: UCC28C43, LM5155

Hi all,

Customer want to use LM5155 like UCC28C43, can they short FB to GND and connect comp to opto-isolator output? Thanks.

  • 0
    TI__Mastermind 21720 points

    Hi Jeff,

    Thanks for reaching out with your questions and for using the LM5155.

    The LM5155 can be configured with the FB pin pulled to ground. Please take a look at this application note that describes how to design the LM5155 as a flyback.

    Please contact me directly if you have any questions.

    Thanks,

    Garrett