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Original question:

LM211-Q1: Saturation Voltage value

BQ24172: Battery learn mode

FRANK1
Expert 8045 points
Part Number: BQ24172
Other Parts Discussed in Thread: BQ24715

Hi sir,

I have a question on learn pin connection for 'Figure 24. Typical Application Schematic With Battery Learn Function' in datasheet.

How to handle the learn pin?

which pin or circuit should be connected to learn?

Thanks.

Regards,

M

  • 0
    TI__Genius 10385 points

    M,

    The LEARN function allows the battery to discharge in order to calibrate a battery gas gauge over a complete discharge/charge cycle.

    When LEARN is true and the battery is greater than the depletion threshold is true, then the device will enter OVP causing ACFET and RBFET to turn off. When ACFET and RBFET are off, discharge is forced allowing a gas gauge learn.

    This is an external implementation of the LEARN feature in the bq24715/725 devices.

    I hope this resolves your issue,

    Ricardo