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What's with IRF spice models?

Discussion in 'CAD' started by Chris Carlen, Sep 10, 2003.

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  1. Chris Carlen

    Chris Carlen Guest

    Hi:

    I tried to get the .spi file for IRF540, but it points to irf830.spi

    If you go to IRF830, the spice file link is for irf9520.spi

    IRF9520 points to irf9530.spi, and finally IRF9530 points to irf9530.spi.

    I could understand it if different part numbers linked to spice files
    with different names, if the models were effectively the same, but
    IRF9520 is PMOS, while IRF830 is NMOS.

    What are these folks smoking?


    Good day!


    --
    _______________________________________________________________________
    Christopher R. Carlen
    Principal Laser/Optical Technologist
    Sandia National Laboratories CA USA
    -- NOTE: Remove "BOGUS" from email address to reply.
     
  2. Active8

    Active8 Guest

    more like good smoke.

    post the link. if the url has the part number in it you should be able
    to substitute the right part number in the url.

    mike
     
  3. Chris Carlen

    Chris Carlen Guest


    That's a smokin' idea! And it works.

    Thanks.

    Here's an example of what I'm talking about:

    http://ec.irf.com/v6/en/US/adirect/ir?cmd=catProductDetailFrame&productID=IRF830


    Good day!



    --
    _______________________________________________________________________
    Christopher R. Carlen
    Principal Laser/Optical Technologist
    Sandia National Laboratories CA USA
    -- NOTE: Remove "BOGUS" from email address to reply.
     
  4. Hello Chris,
    I searched yesterday also for IRF models and I had a hard time to find it.
    http://www.irf.com/product-info/models/ -> SPICE Library
    Here are all the IRF models in one zip-file.

    Most(all?) of the models are SPICE subcircuits using an extreme diode model.
    I suggest it's used for leakage current simulation, but I believe they
    simply tried to disable these effects later by using extreme values in this
    diode model.

    ..MODEL MD1 D IS=1e-32 N=50 CJO=1.45048e-09 VJ=0.930013 M=0.9 FC=1e-08

    Take a look to Is and N and compare it to "normal" diode models.

    You need the latest LTSPICE 2.05z to use these IRF models, because of this
    diode model.

    Best Regards
    Helmut
     
  5. Active8

    Active8 Guest

  6. Chris Carlen

    Chris Carlen Guest


    What on earth is "copy shortcut???"


    Perhaps you are using some outdated web browser?



    Good day!



    --
    _______________________________________________________________________
    Christopher R. Carlen
    Principal Laser/Optical Technologist
    Sandia National Laboratories CA USA
    -- NOTE: Remove "BOGUS" from email address to reply.
     
  7. Active8

    Active8 Guest

    rclk a link and read the context menu.
     
  8. Chris Carlen

    Chris Carlen Guest


    :-D


    You're just missing the point.

    Which is, it is wise not to assume that others are running the same web
    browser, or word Processor, or other program as you are.

    Yes, I get a context menu when I rclk a link, but it has different
    entries. Of course, there is an entry with the same purpose as "copy
    shortcut". But I was just making a point.

    Microsoft software is NOT the standard.


    Good day!


    --
    _______________________________________________________________________
    Christopher R. Carlen
    Principal Laser/Optical Technologist
    Sandia National Laboratories CA USA
    -- NOTE: Remove "BOGUS" from email address to reply.
     
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