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TPS7A20: TPS7A20 PSpice model not allowing to run simulation

Part Number: TPS7A20

Tool/software:

Hi,

I'm working on simulating this part in LTSpice, but after I create my circuit and go to run it, I get a series of errors. Can someone help clear these for me.

thank you

  • Hi Michael,

    This is difficult to troubleshoot on my end because we do not use LTSpice, and our models are made to run in PSPICE. I will take a look at the model to see if the errors you are seeing make sense for PSPICE, but for LTSpice I won't be able to help much.

    Regards,

    Nick

  • Hi Michael,

    I think the issue is that the model expects an external parameter V_out, and all 3 of these issues stem from V_out not being defined. The screenshot is the test bench that the model comes with. 

    I was able to make the model work by adding the parameter to the internal parameter list. On line 123 in the library file, add the V_out parameter with the output voltage setting you are looking for. Note that it's a single space between the vref parameter and no comma. 

    This should at least resolve the issues that you posted, but this won't guarantee that the model will work with LTSpice. 

    Regards,

    Nick

  • Thank you nick. This worked!