• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 47 subscribers
  • Views 172 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.

Original question:

INA 220 ADC power supply source

INA220: Vs max values

Chi Zhang2
Intellectual 2200 points
Part Number: INA220

Hi expert,

my customer is using INA220, in some application, the voltage will be 6.15V, any risk？

could we support duration 4us and 6V for Vs pin?

BR

Chi

  • 0
    TI__Intellectual 1235 points

    Hi Chi,

    Chi Zhang2 said:
    the voltage will be 6.15V, any risk？

    We cannot guarantee the performance of the device if the absolute maximum ratings are violated. Permanent damage may occur if Vsupply > 6V.

    Chi Zhang2 said:
    could we support duration 4us and 6V for Vs pin?

    As mentioned in comment (1) of the datasheet: "Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability." Unfortunately the amount of time is not defined, so Vsupply should be at the absolute maximum rating for as little time as possible. 

    Why does the customer need Vsupply => 6V?

    I would recommend adding a 5.5V protection Zener diode to keep the Vsupply within the recommended operating range.

    Cierra