• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 64 subscribers
  • Views 81 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS62130A: Usage of Pin-Selectable Output Voltage function

Conor
Mastermind 8165 points
Part Number: TPS62130A

Hi,

The data sheet of TPS62130A and "SLVA489" of Application Report have the following description.

----
Voltage margining is a means of verifying the robustness of a product by intentionally adjusting its supply voltages to their limits and then evaluating the product’s performance to ensure that it still meets its specifications at the power supply’s extremes.
----

I would like to know what the Pin-Selectable Output Voltage (DEF) function is used for.
Is it a function to test whether the load in the subsequent stage is affected when the output voltage rises by 5% for some reason?
In that case, is it correct to understand that this function is for testing robustness on prototype boards, etc., and that it is generally turned off during mass production?

Thanks,

Astro

  • +1
    TI__Expert 7860 points

    Hi Astro,

    Yes the DEF pin is used to evaluate the how the load is affected by a 5% increase in the nominal output voltage. This is typically used for testing purposes to ensure that the final design will still pass all tests at a +5% margin. It is generally turned off during production level builds.

    Thanks,

    Joseph