• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 63 subscribers
  • Views 194 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.

BQ25882: Battery Check

Jake Jung
Expert 1915 points
Part Number: BQ25882

Hi e2e team.

I have a question.

How can I know battery attach or not?

Is there any register? or Only TS pin?

  • 0
    TI__Guru**** 167196 points
    Hi Jake,

    There is no standalone battery detect circuit. However, with the following algorithm implemented in firmware, you can determine if a battery is present:
    1. disable charge with charge enable bit REG0x06b3 or rely on TS fault disable charge
    2. enable IBAT(DISCHARGE)=14mA using REG0x02b6 for at least 5ms
    3. read the BAT ADC voltage in REG1D-1E assuming ADC has been enabled in REG0x15b7
    if BAT ADC voltage is close to 0 then no battery is attached.

    Regards,
    Jeff