• State Resolved
  • Locked Locked
  • Replies 3 replies
  • Subscribers 63 subscribers
  • Views 1904 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.

bq40z50: FD, FC, TD, TC voltage thresholds

TcPaden
Expert 1085 points

How do I go about determining the 8 voltage thresholds for FD, FC, TD, and TC?

Thanks.

Tom

  • 0
    TI__Guru 73830 points
    We normally set the [FD] threshold to the Termination Voltage and set the [TDA] slightly earlier as a warning. We normally set the [FC] set threshold to set at charge termination and the [TCA] slightly earlier as a warning. We normally set the recovery thresholds for about 100mV of hysteresis. These parameters may need to be adjusted depending on how cell voltages react after the load of charger have been removed. It is difficult to provide an absolute set of guidelines for setting these thresholds.
  • 0 in reply to ThomasCosby
    Expert 1085 points
    That helps. I see that either voltage or RSOC % thresholds can be used. Would I be better off using RSOC instead?

    Are there situations where both voltage and RSOC are used together?

    Thanks.
  • 0 in reply to TcPaden
    TI__Guru 73830 points
    I normally use SOC, because this is the parameter that most people are interested in seeing when gauging. I have seen users enable more than one option for the set and clear features, but this is not typical.