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UCC2897 PSPICE and/or TINA Transient models

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Alberto Franchi
Posted by
on Mar 08 2012 05:20 AM
Prodigy30 points

Hello

We are trying to run transient simulations on a project using UCC2897

We saw no specific model is available for UCC2897, but we found models for UCC2891
And unfortunately for UCC2891 the only transient model is for pspice and it's encrypted

here the questions:
1) Is there a specific TINA transient model for UCC2897 (or at least UCC2891)? Also encrypted can be fine if Tina can manage encrypted models
2) Is it possible to get a de-crypted version of transient model for UCC2897 (or at least UCC2891)?

Thanks in advance

Alberto

TINA encrypted PSPICE model UCC2897 decrypted UCC2891
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  • Nikhil Gupta - WEBENCH Design Center
    Posted by
    on Mar 08 2012 09:33 AM
    Verified Answer
    Verified by
    Genius10190 points

    Hi Alberto,

    Currently, we do not have a model for UCC2897. However, we are working on converting the UCC2891 PSPICE Transient model to TINA-TI. As soon as this is done, it will appear in the product folder. In the mean time, if you are interested in getting an unencrypted copy of the PSPICE model, please work with your local Field Applications Engineer and they can help you with this.

    Best regards,

    Nikhil

    Nikhil Gupta

    Power Modeling Engineer

    WEBENCH Design Center

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  • Alberto Franchi
    Posted by
    on Mar 08 2012 10:12 AM
    Prodigy30 points

    Hi Nikhil

    Thanks for the reply, we have just contacted our local FAE asking for the decrypted model

    Best regards and thanks again

    Alberto

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  • Nikita Singhal
    Posted by
    on Mar 26 2012 23:43 PM
    Prodigy30 points

    Hi Alberto,

    Even I was looking for a transient model of UCC2987/ UCC2891 on TINA TI. I am facing similar issues. Everything I find is encrypted. Did you manage to find anything? If yes could you please mail me the same. My email ID is - nsinghal@asu.edu.

    Thanks,

    Nikita.

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  • Alberto Franchi
    Posted by
    on Mar 27 2012 02:19 AM
    Prodigy30 points

    Hello Nikita

    Unfortunately no at the moment.

    We are actually running average simulations to verify loop stability with TINA-TI model.

    Only way to use encrypted models is to have PSpice SW with release later than 15.5 (if I'm not wrong...)
    Note that "Lite" version of the new 16.5 has a limit on nodes that you can simulate and the UCC2987 is exceeding this limit, so you can't use this evaluation version.

    I'm sorry I couldn't help more

    Best regards

    Alberto

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  • Nikita Singhal
    Posted by
    on Mar 27 2012 11:36 AM
    Prodigy30 points

    Hey Alberto

    I wanted to simulate the active clamp forward converter (PTEA404120) using TINA TI. And UCC2897 is the controller used in it for PWM. Hence I cannot use the average model and I needed the transient model. Thanks a lot anyway.

    Regards,

    Nikita.

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  • Nikhil Gupta - WEBENCH Design Center
    Posted by
    on Apr 04 2012 10:25 AM
    Genius10190 points

    Hi Alberto and Nikita,

    Attached is the UCC2891 TINA-TI transient model. It will also be released to the product folder in a few days.

    0083.UCC2891_STEADY.TSC

    3034.UCC2891_START.TSC

    Best regards,

    Nikhil 

    Nikhil Gupta

    Power Modeling Engineer

    WEBENCH Design Center

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  • Nikita Singhal
    Posted by
    on Apr 04 2012 10:56 AM
    Prodigy30 points

    Hey Nikhil,

    Thanks a lot. This would be of great help.

    Regards,

    Nikita.

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