• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 49 subscribers
  • Views 2358 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.

INA219: Low-side sense capable?

Doug DeVries
Prodigy 185 points
Part Number: INA219
Other Parts Discussed in Thread: INA230, INA220

Hi,

Can someone please explain why is the INA219 listed for high-side monitoring applications only?

I don't see any differences in the key parameters (input range, common mode voltage range, etc) between the INA219 and INA230, yet the INA230 data sheet claims it is capable of low-side sensing whereas the INA219 does not.

I don't need the bus monitoring or power calculation functions.

Thanks,

-Doug

  • 0
    TI__Expert 4915 points
    Hi Doug,

    Thank you for your query on the E2E Forum,

    The issue on low-side with the INA219 is that it cannot be used to calculate power when on low-side as the VBUS pin and VIN+ are the same. The INA220 has a separate VBUS pin from VIN+ to allow it to be used on low-side while also able to calculate power consumption.