3.2 Setting Programmable bq34z100 Options
The bq34z100 data flash comes configured per the default settings detailed in the bq34z100 datasheet. Ensure
that the settings are correctly changed to match the pack and application for the solution being evaluated.
Note
The correct setting of these options is essential to get the best performance. The settings can be
configured using the
Data Memory
screen (see
Figure 3-2. Data Memory Screen
3.2.1 Cell Configuration
The bq34z100 operates in one of two modes for measuring battery voltage. Place two jumpers on header J5 to
select the mode of operation. Refer to the
.
For packs where the stack voltage is less than 5 V:
• Set the
Number of Series Cells
parameter field to the appropriate value
• Reset the gauge using the
RESET
button on the
Commands
panel
• Calibrate the stack voltage. Reference the
Calibration Screen
section
For packs where the stack voltage is greater than 5 V:
• Set the
Number of Series Cells
parameter field to the appropriate value
• Set the
VOLTSEL
bit in the
Pack Cfg A
register
• Reset the gauge using the
RESET
button on the
Commands
panel
• Calibrate the stack voltage. Reference the
Calibration Screen
section
Battery Management Studio
8
bq34z100EVM Wide Range Impedance Track™ Enabled Battery Fuel Gauge
Solution
SLUU904B – APRIL 2012 – REVISED APRIL 2021
Copyright © 2021 Texas Instruments Incorporated