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Original question:

TPS2491: DC surge test output shutdown

TPS23523: Questions for TPS2352x Design Calculator

Eric Lai
Expert 4940 points
Part Number: TPS23523

Hi Expert,

May we know whether there are the detail descriptions for the each items of TPS2352x Design Calculator.

If yes,pls share us.

Or pls help to explain the detail of below row into TPS2352x Design Calculator:

Row 24,25 and 26?

Row 50,51 and 52?

Row 94?

Best regards,

Eric Lai

 

Field Application Engineer

Texas Instruments Taiwan Limited

O: +886-2-2175-2582

M: +886-909-262-582

E-Mail:Eric.Lai @ti.com 

  • +1
    TI__Mastermind 38840 points

    Hi Eric,

    Thanks for reaching out to us. Please see the following sections in the datasheet corresponding to Row 24, 25, 26, 50, 51, 52, and 94.

    1) Row 24 and 25: Section 8.3.1 Current Limit,

    2) Row 26: Section 9.2.2.2 Selecting Soft Start Setting: CSS and CSS,VEE,

    3) Row 50: Sections 8.3.1.1 Programming the CL Switch-Over Threshold and 9.2.2.3 Selecting VDS Switch Over Threshold,

    4) Row 51: Section 9.2.2.2 Selecting Soft Start Setting: CSS and CSS,VEE,

    5) Row 52: Section 9.2.2.4 Timer Selection,

    6) Row 94: This computes the tolerance/variations on each device settings based on the component and internal device threshold tolerances. There are two common ways to analyze the errors. One is worst case, which adds all of the error sources and the other one is root mean square (RMS), which is less conservative. When error sources are independent, using the RMS method provides a more statistically accurate view of the tolerances.

    Please note that the descriptions of Row 24 and 25 are swapped unintentionally. The descriptions for Row 24 and 25 should be "Ilim (low Vds)" and "Ilim (high Vds)" respectively. Kindly feel free to get back to us if there are any more queries on the design calculator.