• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 75 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.

BQ24079: min power input

Victor Levy
Intellectual 2326 points
Part Number: BQ24079

Hi, 

I have a customer who is asking

What is the min power input of BQ24079 4.1V to charge at 300mA , at -20c to +70c

  • 0
    TI__Genius 12475 points

    Hi Victor,

    For the minimum voltage to be able to charge the 4.1V battery, you will need to maintain VIN to be higher of VINDPM and VOUT be higher than VDPPM voltage. 

    For the VOUT voltage, you can calculate using VOUT = VIN- ((RDSON of Q1) * IOUT) where IOUT is charge current + system load. Do you know what the system load is?

    Regards,

    Gautham