Texas Instruments bq34z100EVM, User Manual, Page: 1 / 28

User’s Guide
bq34z100EVM Wide Range Impedance Track™ Enabled
Battery Fuel Gauge Solution
Tom Cosby HVAL - Battery Management Solutions
ABSTRACT
This evaluation module (EVM) is a complete evaluation system for the bq34z100 wide-range fuel gauge for
lithium ion, Nickel metal hydride (NiMH) and Nickel Cadmium (NiCd) chemistries when combined with an
EV2300 USB adapter and Microsoft
® Windows ® based PC software downloadable from the TI.com website.
The circuit module includes one bq34z100 integrated circuit (IC) and all other components necessary to monitor
and predict capacity in one or more series cell Li-ion, Li-polymer, or LiFePO4 battery packs. The minimum
series cell count for PbA, NiMH, and NiCd chemistries must exceed 3.3-V stack voltage. The circuit module
connects directly across the battery stack. With the EV2300 interface adapter and software, it is possible to
read the bq34z100 data registers, program the chip for different pack configurations, log cycling data for further
evaluation, and evaluate the overall functionality of the bq34z100 solution under different charge and discharge
conditions.
Table of Contents
1 Features ................................................................................................................................................................................... 3
1.1 Kit Contents........................................................................................................................................................................ 3
1.2 Ordering Information.......................................................................................................................................................... 3
1.3 Documentation................................................................................................................................................................... 3
1.4 bq34z100 Circuit Module Performance Specification Summary........................................................................................ 3
2 bq34z100 Quick Start Guide .................................................................................................................................................. 4
2.1 Items Needed for EVM Setup and Evaluation.................................................................................................................... 4
2.2 Software Installation........................................................................................................................................................... 4
2.3 EVM Connections.............................................................................................................................................................. 5
3 Battery Management Studio .................................................................................................................................................. 7
3.1 Registers Screen................................................................................................................................................................ 7
3.2 Setting Programmable bq34z100 Options......................................................................................................................... 8
3.3 Calibration Screen.............................................................................................................................................................. 9
3.4 Chemistry Screen............................................................................................................................................................. 10
3.5 Programming Screen........................................................................................................................................................ 11
3.6 Golden Image Screen...................................................................................................................................................... 12
3.7 Advanced Comm I2C Screen........................................................................................................................................... 13
3.8 Send HDQ Screen........................................................................................................................................................... 15
3.9 Dashboard Panel............................................................................................................................................................. 15
3.10 Commands Panel........................................................................................................................................................... 16
4 Circuit Module Physical Layouts ......................................................................................................................................... 17
4.1 Board Layout.................................................................................................................................................................... 17
4.2 Schematic........................................................................................................................................................................ 20
4.3 Bill of Materials................................................................................................................................................................. 21
5 Related Documentation from Texas Instruments .............................................................................................................. 22
6 Revision History ................................................................................................................................................................... 22
List of Figures
Figure 2-1. bq34z100 Circuit Module Connection to Cells and System Load and Charger........................................................ 5
Figure 3-1. Registers Screen....................................................................................................................................................... 7
Figure 3-2. Data Memory Screen................................................................................................................................................ 8
Figure 3-3. Calibration Screen..................................................................................................................................................... 9
www.ti.com Table of Contents
SLUU904B – APRIL 2012 – REVISED APRIL 2021
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bq34z100EVM Wide Range Impedance Track™ Enabled Battery Fuel Gauge
Solution
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