• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 64 subscribers
  • Views 270 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.

BQ25790: BQ25790 without I2C Controlled?

Tom Chiang
Prodigy 10 points
Part Number: BQ25790
Other Parts Discussed in Thread: BQ25618, BQ25606, BQ25619

Battery charging spec referring to the customer:
Charging time: within 0.5hr to 99%

Battery capacity: 450mAh
How many cell you design? [Ans] On cell

The BQ25790 seems to meet this spec, or can you suggest a suitable one?
Regarding the BQ25790, without the I2C host controlled, can it support fast charging?

  • 0
    TI__Guru**** 157141 points

    Hi Tom,

    The BQ25790 can charge 1S battery using default settings (4.2V and 2A charge current) without I2C.  However, since it is capable of charging up to 5A it is overpowered for a 450mAh battery and the default 2A charge current is probably too high for the cell.  I recommend changing to BQ25618 or BQ25619, for I2C control or BQ25606 for standalone.

    Regards,

    Jeff