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TPS2490: TPS2490 excel value check

Chen Bogey8
Mastermind 9990 points
Part Number: TPS2490
Other Parts Discussed in Thread: TPS24770, TPS24720

Hi Sir 

TPS2490 will be use in 12V/14A ~160W.

Maximum continuous load current is 16A 

VCC = 13 -10V

N-MOSFET : SM4373NAKP

 

Pls help why we key the value in excel file, why some item color change to red?

 

Some other we need to consider? pls advice.

SM4373NAKP_datasheet.pdf

TPS2490Tool_revG_locked_1070103.xls

  • 0
    TI__Expert 5940 points
    Hi Chen,

    Try the new version of the tool that can be downloaded at www.ti.com/hotswap. It is a little easier to use and more intuitive. Red boxes usually mean a thermal issue or FET SOA issue has been detected. The FET you selected hasn't very good SOA performance and you may need to use a different FET. TI FETs have excellent SOA performance and would be a better choice. CSD16415 for instance but there are other higher Rdson TI FETs that could be used. Since your input voltage is only 13v max, you should look at the number of TI <30v hotswap devices that may be better choices 100v TPS2490 at that voltage level. TPS24720/TPS24770 for instance. There is a product selector tool at the same link to help chose if desired. There are excellent app notes and tool training videos there also.

    Brian
  • 0 in reply to Brian Daugherty
    Prodigy 10 points
    Hi Brian,

    Do you have an unlocked version of the excel spreadsheet so I can look at your formulas?
  • 0 in reply to Suman Minnaganti
    TI__Expert 5940 points

    Suman

    Unlock by entering the part number of the spreadsheet.  We recommend you do not save onto your pc unlocked as you may have changed formulas by trial and error and then the spreadsheet may proliferate at your company with incorrect formulas

    Brian