• State
  • Locked Locked
  • Replies 2 replies
  • Subscribers 63 subscribers
  • Views 419 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.

BQ21040: Do you have suggest for Switch charger?

Jason Chien42
Expert 1180 points
Part Number: BQ21040

Dear Sir:

              Due to there are humidity sensor on our PCB and it was affected when we used linear charger to charge battery. Do you have suggest for switch charger? Below is our condition for battery.

1.Switching

2.Charger current under 1A

3.Li- POLYMER 3.7V/240mAh, 

4.standalone

Best Regard

Jason

  • 0
    TI__Guru* 75656 points
    Hello
    Can you describe the problem caused by humidity sensor that is preventing use of a linear charger and requiring a switch mode charger?
  • 0 in reply to Bill Johns
    Expert 1180 points

    Dear Sir:

                  Thanks for your reply. Main issue is temperature rises from  linear charger (BQ21040), it affect accuracy of humidity sensor. So we want to looking for switching charger to improve efficiency and reduce temperature rises of charger. Does TI have switching  charger for small battery?

    Best Regard

    Jason