• State TI Thinks Resolved
  • Locked Locked
  • Replies 3 replies
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 501 views
  • Users 0 members are here
Support feedback
Options
Options
Related

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.

BQ25703A: Aerospace suitable charger IC

user5293525
Prodigy 20 points
Part Number: BQ25703A

Hi,

I would like to know if the Charger IC bq25703A is suitable for battery charge applications in space? Or if there are any recomended alternatives for spacecraft applications?

There are some features of the bq25703A which aren't necessary like the USB OTG, but an host interface like the i2c would be great.

  • 0
    TI__Guru 56650 points

    Please list detail requirements. And then, we know it fits or not.

    bq25703A operation temperature range is listed in the datasheet.

  • 0 in reply to Wang5577
    Prodigy 20 points

    We need the chip to charge Li-Ion Batteries in a cube sattelite which is going to orbit in 400km altitude. We want to charge single cell Li-Ion, the charge current will depend on the sunlight that will hit the solar cells, but we're not expecting more than 2000mA. The cell monitoring of the bq25703A has some nice features, like the batteriecurrent, we're planning to realise a coulombcounter with that. The system should be host controlled, so the I2C would be nice.

    What we're not sure about is, if there will be any issues with the cosmic ray.  Does the chip fulfill any space standards? Or will we have to shield it or something?

  • 0 in reply to user5293525
    TI__Guru 56650 points
    It could be an issues with the cosmic ray because the chip doesn't fulfill any space standards or has a shield.