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TINA/Spice/LM25116: Import models into Tina T.I

Alon Goldstein
Prodigy 115 points
Part Number: LM25116
Other Parts Discussed in Thread: TINA-TI,

Tool/software: TINA-TI or Spice Models

I've completed a WEBENCH design around LM25116.
I want to simulate it in the TINA T.I, so I can explore further options, such as using variable external voltage to control the output voltage.

I downloaded  the P-Spice files, but I can't find any documentation regarding what I should do to integrate it into the TINA, as a component in a schematic.

I'm sure there is such a guide somewhere...

Can someone please direct me to it?

Thank you.

  • 0
    TI__Mastermind 41310 points

    Alon,

    Please follow these steps to create a .TSM file for the LM25116:

    1.) Download the unencrypted PSpice model (transient for time based simulations, average for AC simulations)

    2.) Use the New Macro Wizard to import the PSpice model into TINA-TI (Tools-->New Macro Wizard). Give the .TSM file a name, navigate to the .lib file where you have saved it on your computer and select the LM25116_TRANS model and use the Auto generate shape option.

    3.) Save the .TSM file and insert it into your schematic

    4.) Create your schematic based on the WEBENCH design.

    There are some very good TINA-TI training videos found here:

    Video 9 shows an example of this process.

  • 0 in reply to Britt Brooks - Online Design Tools
    Prodigy 115 points

    I tried that, and the process seemed to go well in the beginning, but then I got the error message :

    "Not supported MOSFET device model: BSIM3N (M1)"

    and then another message - "The circuit cannot be opened or cannot be converted to a macro."

  • 0 in reply to Alon Goldstein
    TI__Mastermind 41310 points

    Alon,

    Change the LEVEL=8 to LEVEL=7 in the .lib file for the BSIM3N device. I believe that this has to do with PSpice calling BSIM3v3 level 7 and SPICE calling it level 8. HSpice called it Level 49. I believe that should allow the model to be imported and function properly.

    Apologies for the confusion. PSpice accepts both Level 7 and Level 8 as parameters. TINA does not appear to accept Level 8. I'll verify that with DesignSoft.