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LM5576 Request for average model

Ella KIM
Expert 4102 points
Other Parts Discussed in Thread: TINA-TI, LM5576, LM76003, LM5013, LMR38020

Hi TINA-TI Team,

I wonder if I can receiver average model of LM5576. I cannot find it in the product folder. Does this mean the LM5576 average model never exists? Then I also wonder if it can be newly generated if it's requested.

https://www.ti.com/product/LM5576?keyMatch=LM5576&tisearch=search-everything&usecase=GPN#design-tools-simulation

+ Per my understanding, I cannot get a bode plot (AC analysis) with the transient model which is commonly provided. Is it correct?

Thanks,

  • +1
    TI__Mastermind 35190 points

    Hello Ella,

    This device does not have an average model and is not planned to be released.

    I would recommend using webench for AC analysis for this device.

    The recommended device with similar power rating is now LM5013, LM76003, or LMR38020

  • 0 in reply to Marshall_Beck
    TI__Expert 4102 points

    Hi Marshall,

    Thank you for suggestion. Still need to go with LM5576 because my customer do not want to move to a new device..

    Just want you to know that LM5576 webench does not provide simulation functionality. It looks there's no way to check the stability of this device.

    Thanks,

  • +1 in reply to Ella KIM
    TI__Mastermind 35190 points

    Sorry, Ella. That caught me by surprise.

    In that case, I would recommend utilizing the design calculator tool which computes the ideal compensation component values for stable loop.

    Link:www.ti.com/.../snvu053