MOSFET SOA

Discussion in 'Electronic Design' started by Tim Williams, Jan 8, 2014.

  1. Tim Williams

    Tim Williams Guest

    Have manufacturers eliminated DC SOA? Even from old devices? Can the old
    curves still be trusted, or are all new production actually broken?

    Example: compare IRF830, ST's '99 datasheet versus current Vishay docs.

    Tim

    --
    Seven Transistor Labs
    Electrical Engineering Consultation
    Website: http://seventransistorlabs.com
     
    Tim Williams, Jan 8, 2014
    #1
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  2. Tim Williams

    Artem Guest

    On Wednesday, January 8, 2014 11:21:05 AM UTC+2, Tim Williams wrote:
    > Have manufacturers eliminated DC SOA? Even from old devices? Can the old
    >
    > curves still be trusted, or are all new production actually broken?
    >
    >
    >
    > Example: compare IRF830, ST's '99 datasheet versus current Vishay docs.


    What you mean about SOA? Safe Operating Area?
    In pdf it's same.
    http://www.vishay.com/docs/91063/91063.pdf
    http://www.irf.com/product-info/datasheets/data/irf830.pdf

    I'm expect that any IRF830 can be replaced to any IRF830.
     
    Artem, Jan 8, 2014
    #2
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  3. Tim Williams

    Tim Williams Guest

    "Artem" <> wrote in message
    news:...
    > What you mean about SOA? Safe Operating Area?
    > In pdf it's same.
    > http://www.vishay.com/docs/91063/91063.pdf
    > http://www.irf.com/product-info/datasheets/data/irf830.pdf


    Those are essentially the same datasheet (Vishay bought IR), and don't
    include DC SOA. I suggested ST, give this a try:
    http://www.st.com/web/en/resource/technical/document/datasheet/CD00001546.pdf

    >
    > I'm expect that any IRF830 can be replaced to any IRF830.


    The datasheets wouldn't seem to agree, which is disturbing.

    Tim

    --
    Seven Transistor Labs
    Electrical Engineering Consultation
    Website: http://seventransistorlabs.com
     
    Tim Williams, Jan 8, 2014
    #3
  4. Tim Williams

    Artem Guest

    On Wednesday, January 8, 2014 3:25:21 PM UTC+2, Tim Williams wrote:
    >
    > >

    > Those are essentially the same datasheet (Vishay bought IR), and don't
    >
    > include DC SOA. I suggested ST, give this a try:
    >
    > http://www.st.com/web/en/resource/technical/document/datasheet/CD00001546.pdf
    >
    >

    Reverse Transfer
    Capacitance
    Reverse Transfer Capacitance 10pF
    Reverse Transfer Capacitance 68pF

    Say hello to Miller effect.
     
    Artem, Jan 8, 2014
    #4
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