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TPS54340-Q1: start up and stop volatge calculation issue as per datasheet

Prodigy 100 points

Replies: 1

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Part Number: TPS54340-Q1

Hi,

Im trying to use the below equation for Vstart and Vstop voltage calculation.

But its not matched with the actual value arrived.As per the above equation,If Vstart=5.75V and Vstop =4.5V.

Ihys=3.4uA. then RUVLO1 value should be as 442K .

Am I missing anything in my calculation.

Pls let me know.

Thanks-Arumugam

  • How close are the actual values of Vstart and Vstop to the calculated values ??

    Be sure you are measuring the voltages at the top of the divider string and not at you input supply.

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