TPS2493: Design Calculator, Section 5, not including OVLO calculations, only UVOL

Eric Mac

Part Number: TPS2493

Tool/software:

For TPS2493 I would like to calculate the OV threshold and related resistor values using the TPS249x_8XDesign_Calulator_RevB Design tool.

This design tool spreadsheet has within section 5 the title UVLO, OVLO but within this section spreadsheet cells only contain results for UVLO and not for OV? Not sure why - when I watch the tutorial it shows the existence of more cells for this OV calculation. Am I using the wrong tool for TPS2493 OV function?

25 days ago

+1 Avishek Pal 24 days ago

TI__Mastermind 39610 points

Thanks for pointing out the mistake in the design calculator.

Please flow the design guideline mentioned in the datasheet for calculating R1 to R3 resistances.

0 Eric Mac 19 days ago in reply to Avishek Pal

Intellectual 435 points

Please clarify -1) Instructions for Calculation states initially to assume R3 is 1K then later states R3 is 10K?; 2) Vov_h - can you define and how was 1.35V selected? Is this voltage difference above Vov? thus Vov_h is 15.85V in the example?

0 Avishek Pal 18 days ago in reply to Eric Mac

TI__Mastermind 39610 points

Eric Mac said:
1) Instructions for Calculation states initially to assume R3 is 1K then later states R3 is 10K?

Eric Mac said:
Vov_h - can you define and how was 1.35V selected? Is this voltage difference above Vov? thus Vov_h is 15.85V in the example?

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TPS2493: Design Calculator, Section 5, not including OVLO calculations, only UVOL