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TINA/Spice/LM5069: Cannot Import Encrypted ON Semiconductor MOSFET PSPICE Model

Jessica Riley90
Prodigy 180 points
Part Number: LM5069
Other Parts Discussed in Thread: TINA-TI, , CSD19535KTT, CSD19536KTT, CSD19532KTT

Tool/software: TINA-TI or Spice Models

Hello,

I am having trouble importing a model for ON Semiconductor's FDMT80080DC into TINA.  I've followed the application guides and tried importing it as a New Marco but when it tries to read from the file it gives me an error "Error Loading Library: File is Empty!".  I've also tried to import it as a PSPICE netlist and while the file loads, but it does not compile (a screenshot of the error message is below).

The PSPICE model file is encrypted and I contacted ON Semiconductor about the possibility of them sharing an unencrypted version with me so I can do this simulation, but unfortunately they were not willing to do so.

I want to simulate TI's LM5069 hotswap controller with this specific FET.  Any help or suggestions would be very much appreciated!

Thank you,

Jessica

  • 0
    TI__Mastermind 39210 points
    Jessica,

    I am sorry, but unless you get the unencrypted model from ON Semi, you will not be able to import this into TINA-TI. This is not a TINA-TI specific issue. Encrypted models work only in the simulator in which they are encrypted.

    I would recommend trying out a TI FET that already has a TINA-TI model available as a workaround. Let us know if you need help picking one of these from TI's portfolio.
  • 0 in reply to Nikhil Gupta (Product Folder Models)
    Prodigy 180 points
    Thank you very much for the quick reply. I will follow your suggestion and use another FET model as an interim solution.

    ON Semiconductor provides PSPICE models for Orcad, LTspice, and SIMetrix, but not for TINA. And the model for the LM5069 only works in TINA, but none of TI's FETs meet my requirements. So many simulation tools, but none support the two parts I need to simulate together.
  • 0 in reply to Jessica Riley90
    TI__Expert 7555 points
    Jessica,

    Although TI does not have the same package as this On Semi part we do have a devices in a D2Pak package that are equivalent in SOA to the On Semi part, if this package is acceptable I would recommend the CSD19535KTT, or for even higher SOA capability you could use the CSD19532KTT. If slightly lower capability is ok then the CSD19532KTT may also be an option. Both the CSD19535KTT and CSD19536KTT have TINA models on the web. We can make a CSD19532KTT TINA model for you if needed.
  • 0 in reply to Chris Bull
    TI__Expert 7555 points
    correction to above, I meant to say CSD19536KTT has higher SOA capability vs CSD19535KTT not the CSD19532KTT which has the lowest capability of the three parts
  • 0 in reply to Chris Bull
    Prodigy 180 points
    Thank you for the suggestions. CSD19536KTT might work well as a simulation stand-in, but for my actual design the reason I decided on the ON Semi part was it can handle pulse currents over 1000A which I wasn't able to find in any of TI's FETs.
  • 0 in reply to Jessica Riley90
    TI__Expert 7555 points
    Jessica,

    The pulsed current rating can be calculate (see explanations here ( e2e.ti.com/.../understanding-mosfet-data-sheets-part-4-mosfet-switching-times) , the limit of our test equipment is 400A. I suspect the On Semi part is simply a calculated value with 1000A as I am not aware of equipment capable of this current. If you notice both the CSD19535KTT and CSD19536KTT have the same pulse rating of 400A, these are different FETs with different die sizes and the larger the die size the higher the current and pulse rating.
    If I were to use the calculated single pulse current ratings with pulse duration of 1us they would be:
    CSD19536KTT >2400A
    CSD19535KTT >1500A
    Both well above the 1000A of the On Semi part.

    I hope this helps clarify a little how pulse current ratings are done in FET datasheets, different manufacturers have differences in the way they spec devices and why we did the blog series on understanding FET datasheets.
  • 0
    TI__Mastermind 39210 points
    Hi Jessica,

    The CSD19532KTT TINA-TI model was released to the product folder today. It should show up in 1-2 days under the "Tools and Software" tab.