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LM51581-Q1: Simulation model

Muzeeb Ur Rahiman Shaik
Prodigy 20 points
Part Number: LM51581-Q1
Other Parts Discussed in Thread: LM5158

Hi I'm working for one project which includes this flyback converter the model which is available is not working and it is encrypted. So can you please provide me with any alternative spice model or any sparameter file for EMI EMC simulation 

Part No: LM5158QRTERQ1
  • 0
    TI__Mastermind 30030 points

    Hi Muzeeb,

    Thanks for using the e2e forum.

    I checked the LM5158 Trans PSpice model from our product page and it does run just fine on my side.
    Can you describe in detail what error occurs in your simulation?

    A common error in PSpice for TI is the limitation of third party models. Some of our default testbenches still have external diodes or FET model included, which limits the probe count to three probes. If the simulation profile has more probes selected, an error will be shown.
    The LM5158 has an external diode model in the Boost schematic. If you see this error, please replace diode D1 (PMEG045V100..) with a default diode part ( dbreak ).
    The Flyback schematic has no external components. Here no modification is necessary.

    Please also make sure you are using the newest PSpice for TI version.

    Thanks and best regards,
    Niklas