• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 63 subscribers
  • Views 740 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.

BQ24259: SYS output current

TS Yang
Genius 4800 points
Part Number: BQ24259
Other Parts Discussed in Thread: BQ24296MEVM-655

Hi,

I have a question about the datasheet spec below.

When the Vin source is not present, is the SYS output current output by the battery up to 2A? Is it 3.5A?
also, BQ24259 reference EVM data is not available on the web site, can I get it?
thanks,
TS
  • 0
    TI__Mastermind 25800 points

    Hey TS,

    3.5A output current refers to the current capability of the buck converter, in other words, when VIN is present and the buck converter is operating. 

    2A fast charging current capability, or ICHG max. 

    When there is no VIN source, the BATFET can handle up to 5.5A of discharge current through it, and either out of the SYS pin, or reflected through the boosted OTG output current. 

    As far the reference design, there is none available. However, you may refer to the bq24296MEVM-655 here, as they are pin-2-pin compatible.

    Regards,

    Joel H