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UCC27212: Warnings in PSpice simulation

Ludwig Jostes
Prodigy 30 points
Part Number: UCC27212

Hi,

I am trying to simulate a circuit with the UCC27212. However, when I start the simulation I get the warnings:
WARNING(ORPSIM-15256): <X_U2.X_DRIVER_3.X_U1.DELAY> not a subcircuit param
WARNING(ORPSIM-15256): <X_U2.X_DRIVER_3.X_U1.RINP> not a subcircuit param
WARNING(ORPSIM-15256): <X_U2.X_DRIVER_3.X_U2.DELAY> not a subcircuit param
WARNING(ORPSIM-15256): <X_U2.X_DRIVER_3.X_U2.RINP> not a subcircuit param
WARNING(ORPSIM-15256): <X_U2.X_U7.X_U2.DELAY> not a subcircuit param
WARNING(ORPSIM-15256): <X_U2.X_U7.X_U2.RINP> not a subcircuit param
WARNING(ORPSIM-15256): <X_U2.X_U7.X_U1.DELAY> not a subcircuit param
WARNING(ORPSIM-15256): <X_U2.X_U7.X_U1.RINP> not a subcircuit param

Is there something missing in the Model/Library?
I am worried, that this will interfere with my simulation.

  • 0
    TI__Mastermind 20950 points

    Hello Ludwig,

    Thank you for the interest in the UCC27212. I assume U1 and U2 are the UCC27212 driver devices.

    Can you confirm if the simulation runs and executes, but you see these warnings?

    The driver models do replicate the actual device behavior regarding delays, drive strength, UVLO etc so I am not sure what these warnings are referring.

    If the simulation is running you can do a quick check to see if the propagation delays are similar to the datasheet spec of 16-20ns from the LI to LO signals and HI to HO signals. This would confirm the device is behaving as intended.

    Confirm if this addresses your questions, or you can post additional questions on this thread.

    Regards,