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TPS2521: Constant calculation of TPS2521

Kaji@PAN
Mastermind 7340 points
Part Number: TPS2521

Hello,

I am doing constant calculation of TPS2521 using the attached document.
(Question 1)
RILM on line 54 is automatically calculated, but is it calculated from IMAX on line 18?
The result is different from the calculation using formula 4 in the datasheet.
(Question 2)
What does FALSE on line 70 indicate?
Am I doing something wrong with the settings?

Best regards,

TPS25210x_Design_Calculator.xlsm

  • +1
    TI__Guru 64325 points

    Hi Kaji,

    1. D52(RILIM_CAL) is calculated based on datasheet formula from D19(ILIM). D54 is nearest standard resistor value for D52.

    2. False means device will not enter current limit during startup. It is fine. Nothing to worry.

    Regards

    Kunal Goel