Battery Management Studio
8
SLUUBP4 – June 2017
Copyright © 2017, Texas Instruments Incorporated
bq27750EVM 1-Series Li-Ion Battery Pack Manager Evaluation Module
Figure 5. Calibration Screen
3.4.1
Voltage Calibration
•
Measure the voltage from 1N to 1P and enter this value in the
Applied Cell 1 Voltage
field and
Applied
Battery Voltage
, then select the
Calibrate Voltage
and calibrate battery voltage checkboxes.
•
Measure the voltage from /Load+ to Charger-/Load- and enter this value in the
Applied Pack
Voltage
field and select the
Calibrate Pack Voltage
box. If the voltage is not present, then turn the
charge and discharge FETs on by entering a 0x22 command in the
Manufacturer Access
register on
the
Register
screen.
•
Press the
Calibrate Gas Gauge
button to calibrate the voltage measurement system.
•
Deselect the
Calibrate Voltage
boxes after voltage calibration has completed.
3.4.2
Temperature Calibration
•
Enter the room temperature in each of the
Applied Temperature
fields and select the
Calibrate
box for
each thermistor to be calibrated. The temperature values must be entered in degrees Celsius.
•
Press the
Calibrate Gas Gauge
button to calibrate the temperature measurement system.
•
Deselect the
Calibrate
boxes after temperature calibration has completed.
