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TPS40210

Viktorija Cecil
Mastermind 18471 points
Other Parts Discussed in Thread: TPS40210

One of my customers is using TPS40210 boost controller to convert 6.3V to 12V@1A. It appears this device was removed from SwitcherPro from some reason. Therefore I must use manual calculations. Equation 60/61 per datasheet did not seem to work out for me. I calculated the comoensation network as R4=6.34K, C2=8nF, C4=33pF. 600kHz is used. 130uF Cout, 37mOhm. Can you confirm these values?

Thanks

Viktorija

  • 0
    TI__Guru 56795 points

    Viktorija,

     

    Are you asking someone to check your math?

  • 0 in reply to Peter James Miller
    TI__Mastermind 18471 points

    Peter,

    First I would like to understand why it is not in SwitcherPro any more, and can it be put back there.

    The customer had to do hand calculations, and that's what i have posted. Other than double checkign the math, do you see any other way to accomplish what he is trying to do?

    Thanks for your help.

    Viktorija

  • 0 in reply to Viktorija Cecil
    TI__Guru 56795 points

    1) Why is the TPS40210 controller not in Switcher Pro any more?

    Because the mathmatical engine behind the TPS40210's impementation in SwitcherPro contained errors and it was generating incorrect results.  Rather than provide users with bad designs and incorrect results, the part was disabled in SwitcherPro until it could be corrected.

    2) Can it be put back there?

    Once we have corrected and verified the math engine and can confirm that it will generate good designs with good results, it will be put back.

    3) The customer had to do hand calculations, and that's what i have posted. Other than double checkign the math, do you see any other way to accomplish what he is trying to do?

    I'd actually recommend putting the equations into an excel spreadsheet.  I have a spreadsheet, but it's not user friendly, so its not intended for customer use.