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Question about TPS54160A's IC_Pd.

Satoshi
Guru 19645 points
Other Parts Discussed in Thread: TPS54160A

About TPS54160A's IC_Pd has a difference by calculated method (datasheet) and Webench.

※Vin ： 34V , Vout  ： 4.78V , Iout ： 1.05A ,  fsw：329kHz , Ta：40℃

・Datasheet Page-38 ： calculate result

・Wenench result ： 324.729mW (Please see attach)

6138.Webench_TPS54160A.pdf

 

Which is right?

 

Best regards,

Satoshi

  • 0
    TI__Guru**** 191445 points

    The datasheet calculations are only a rough approximation.  i would go with webench in this case.  The best results will come from actual measurements.

  • 0 in reply to JohnTucker
    Guru 19645 points

    Dear John Tucker-san

    Thank you for reply.

    I undersood "The datasheet calculations are only a rough approximation".

    What kind of item does the calculation which is not written to the datasheet?

    (What is omitted calculation item?)

    Since the results of Webench and datasheet differ, I would like to know this reason.

    Best regards,

    Satoshi