• State TI Thinks Resolved
  • Locked Locked
  • Replies 2 replies
  • Answers 1 answer
  • Subscribers 62 subscribers
  • Views 199 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.

BQ24725A: bq24725A constant voltage mode

Star Xu
Genius 9645 points
Part Number: BQ24725A

Hi

When bq24725A is in constant voltage  mode, I configured 1.5 A, actually only be around 200mA, but at this time, when I reconfigure the charging current to 1A, the charging current will increase to around 400mA, is it normal?

Waiting for your reply

Thanks 

Star

  • 0
    TI__Genius 11850 points

    Hi Star,

    I tested this on a BQ24725A EVM and did not see the behavior that you're describing.

    I set VBUS = 20 V, ICHG = 1.536 A, and VREG = 8.4 V. I increased VBAT in CV mode until IBAT tapered down to 200 mA. At this point, I changed the ICHG register setting to 1.024 A, but IBAT stayed constant at 200 mA.

    Can you try again using the test procedure I described above? Also, do you have an EVM available that you can test this on?

    Best regards,

    Angelo

  • 0 in reply to Angelo Zhang87
    TI__Genius 11850 points

    Hi Star,

    We haven't heard back from you. We are assuming you were able to resolve your issue. If not, just post a reply below or create a new thread if the thread has locked due to time-out.

    Best regards,

    Angelo