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UCC21530-Q1: Pspice simulation error

Oliver Kim7
Intellectual 2710 points
Part Number: UCC21530-Q1
Other Parts Discussed in Thread: UCC21530

Hello team,

I tested UCC21530-Q1 pspice model in MC12(http://www.spectrum-soft.com/index.shtm) simulation tool.

There was an error in "TC=0,0" comments in UCC21530_TRANS.lib as shown below.

I removed all the "TC=0,0" which triggers error and could find out normal operation waveform.

Could you tell me what the role of "TC=0,0" and why UCC21530 operates well when I removed that?

Thank you in advance.

Regards,

Oliver Kim

  • 0
    TI__Prodigy 650 points

    Hi Oliver,

    Thank you for your question. I work on the applications team in the high power drivers group.

    What are you trying to simulated with the UCC21530?

    I've used TINA ( ) to simulate the part before without the issue you're describing.

    In the meantime I'll look into the PSPICE model.

    If this answered your question, could you please press the green button? If not, feel free to ask more questions.

    Thank you and best regards,
    Zachary

  • 0 in reply to Zachary Wellen
    TI__Intellectual 2710 points

    Hello Zachary,

    Thanks for your reply.

    My customer want to simulate entire board devices in MC12 to check operation.

    They want to know the risk when they remove the TC=0, 0 comments in code to make UCC21530-Q1 be operated normally.

    Thank you.

    Regards,

    Oliver Kim

  • 0 in reply to Oliver Kim7
    TI__Prodigy 650 points

    Hi Oliver,

    The "TC=0,0" should be able to be removed without issue. In SPICE, TC is used to define the temperature coefficient parameters of a resistor. In this case its trying to define it for a capacitor, which does not have a TC parameter.

    If this answered your question, could you please press the green button? If not, feel free to ask more questions.

    Thank you and best regards,
    Zachary