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CSD13383F4: Use as a Polarity Protection Device

Antenna_Head
Genius 12690 points
Part Number: CSD13383F4

Tool/software:

Team-

Working on a design for a customer that is battery powered, 3xAA cells.

For reverse polarity protection (protection against batteries inserted backwards) I am proposing a FET as follows.

Please review and let me know if this looks like an OK application of the CSD13383F4, or  if another device would be better suited:

  • 0
    TI__Mastermind 38090 points

    Hello Steve,

    Thanks for promoting TI FETs at your customer. This looks like it should work and is a very simple implementation.You may want to consider adding a place holder for a gate resistor which can be populated with 0 ohms if not necessary. The typical internal gate resistance is 240Ω and an external gate resistor wouldn't really be required but it gives a good place for a scope probe for any debug. The CSD13383F4 has a 2.9A continuous current rating at Tamb = 25°C and can dissipate a max 0.5W. Let me know if there are any questions.

    Best Regards,

    John Wallace

    TI FET Applications

  • 0 in reply to John Wallace1
    TI__Genius 12690 points

    Thanks.

    FYI, I ported the SPICE model into TINA and it has a bunch of SPICE syntax errors in the headers (comments not preceded by * )

    Cheers!

    -Steve

  • 0 in reply to Antenna_Head
    TI__Mastermind 38090 points

    Hi Steve,

    You should use the new macro wizard to create a macro from the unencrypted PSpice model available in the product folder. I just tried and it seems to work OK. I attached the macro for your reference.

    Thanks,

    John

    csd13383f4.TSM

  • 0 in reply to John Wallace1
    TI__Genius 12690 points

    That's what I did.  Several of the comments in the title block were missing the leading "*" character.  I used 7-zip to uncompress the file, and the header had several lines like this, where the leading "*" was missing in the comment.  The TINA New Macro wizard barfed.  I added the comment characters and it worked after that.

  • +1 in reply to Antenna_Head
    TI__Mastermind 38090 points

    That's strange. The file on my hard drive has all of the * comment characters while the one in the product folder is missing some. I'll submit a request to get it corrected. Thanks for pointing out the issue.

    John