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bq20z65EVM-001 SBS 1.1 Impedance Track™ Technology
Enabled Battery Management Solution Evaluation Module
This evaluation module (EVM) is a complete evaluation system for the bq20z65/bq29412 battery
management system. The EVM includes one bq20z65/bq29412 circuit module and a link to
Windows™-based PC software. The circuit module includes one bq20z65 integrated circuit (IC), one
bq29412 IC, and all other onboard components necessary to monitor and predict capacity, perform cell
balancing, monitor critical parameters, protect the cells from overcharge, over-discharge, short-circuit, and
overcurrent in 2-, 3- or 4-series cell Li-ion or Li-polymer battery packs. The circuit module connects directly
across the cells in a battery. With the EV2300 interface board and software, the user can read the
bq20z65 data registers, program the chipset for different pack configurations, log cycling data for further
evaluation, and evaluate the overall functionality of the bq20z65/bq29412 solution under different charge
and discharge conditions.
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SLUU353 - June 2009
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List of Tables
bq20z65EVM-001 SBS 1.1 Impedance Track™ Technology
Enabled Battery Management Solution Evaluation Module
User's Guide
SLUU353 - June 2009
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Table of Contents
Related Manuals for Texas Instruments bq20z65EVM-001
Summary of Contents for Texas Instruments bq20z65EVM-001
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Page 1: Table Of Contents
User's Guide SLUU353 – June 2009 bq20z65EVM-001 SBS 1.1 Impedance Track™ Technology Enabled Battery Management Solution Evaluation Module This evaluation module (EVM) is a complete evaluation system for the bq20z65/bq29412 battery management system. The EVM includes one bq20z65/bq29412 circuit module and a link to Windows™-based PC software. -
Page 2: Features
Pack negative terminal Pack negative terminal PACK+ Pack positive terminal Impedance Track, bqEasy are trademarks of Texas Instruments. Windows is a trademark of Microsoft Corporation. bq20z65EVM-001 SBS 1.1 Impedance Track™ Technology SLUU353 – June 2009 Enabled Battery Management Solution Evaluation Module... -
Page 3: Bq20Z65 Circuit Module Schematic
Circuit Module Physical Layouts and Bill of Materials This section contains the printed-circuit board (PCB) layout, bill of materials, and assembly drawings for the bq20z65/bq29412 circuit module. SLUU353 – June 2009 bq20z65EVM-001 SBS 1.1 Impedance Track™ Technology Enabled Battery Management Solution Evaluation Module Submit Documentation Feedback... -
Page 4: List Of Figures 1 Bq20Z65Evm-001 Layout - Silk Screen
(Figure 1 through Figure 5), and assembly drawing for the bq20z65 module. Figure 1. bq20z65EVM-001 Layout – Silk Screen Figure 2. Top Assembly Figure 3. Top Layer bq20z65EVM-001 SBS 1.1 Impedance Track™ Technology SLUU353 – June 2009 Enabled Battery Management Solution Evaluation Module... -
Page 5: Bottom Layer
MOSFET, N-ch, 20-V, 1.3A, 0.16-Ω SOT23 Fairchild NDS331N Q2, Q4 MOSFET, N-ch Logic Level, Power Trench, 30V, 11A, SO8 Fairchild FDS6690A 12.5 mΩ SLUU353 – June 2009 bq20z65EVM-001 SBS 1.1 Impedance Track™ Technology Enabled Battery Management Solution Evaluation Module Submit Documentation Feedback... - Page 6 IC, Voltage Protection for 2, 3, 4 Cell Lion , 2nd SSOP-08 BQ29412DCT Protection, 4.45 V OVP IC, Cool-GG Programmable Battery Management TSSOP30 bq20z65DBT bq20z65EVM-001 SBS 1.1 Impedance Track™ Technology SLUU353 – June 2009 Enabled Battery Management Solution Evaluation Module Submit Documentation Feedback...
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Page 7: Schematic
Figure 6. Schematic bq20z65/bq29412 Circuit Module Performance Specification Summary This section summarizes the performance specifications of the bq20z65/bq29412 circuit module. SLUU353 – June 2009 bq20z65EVM-001 SBS 1.1 Impedance Track™ Technology Enabled Battery Management Solution Evaluation Module Submit Documentation Feedback... -
Page 8: Evm Hardware And Software Setup
• The driver is not signed, so the administrator must allow installation of unsigned drivers in the operating system policy. Hardware Connection The bq20z65EVM-001 comprises three hardware components: the bq20z65/bq29412 circuit module, the EV2300 PC interface board, and the PC. Connecting bq20z65/bq29412 Circuit Module to Battery Pack Figure 7 shows how to connect the bq20z65/bq29412 circuit module to the cells and system load/charger. -
Page 9: Operation
Operation This section details the operation of the bq20z65 EVSW software. Starting the Program Run bq Evaluation Software from the Start | Programs | Texas Instruments | bq20z65 EVSW menu sequence. The SBS Data screen (Figure 8) appears. Data begins to appear once the <Refresh> (single time scan) button is clicked, or when the <Keep Scanning>... -
Page 10: Sbs Data Screen
Dragging the splitter bar (line that separates the Flags/Static data from SBS values) changes the height of the Flags/Static Data display. Selecting | View |, then | Auto Arrange | returns the splitter bar to its original location. bq20z65EVM-001 SBS 1.1 Impedance Track™ Technology SLUU353 – June 2009 Enabled Battery Management Solution Evaluation Module... -
Page 11: Data Flash Screen, 1St Level Safety Class
| Write All | button. The configuration information of the bq29z95 and module calibration data also is held in the bq20z65 data flash. SLUU353 – June 2009 bq20z65EVM-001 SBS 1.1 Impedance Track™ Technology Enabled Battery Management Solution Evaluation Module Submit Documentation Feedback... -
Page 12: Calibration Screen
1. Ensure that Voltage Calibration has been performed for the pack. Ensure that a stable charger voltage higher than 8-V is present at Pack+. 2. Press the Pack Voltage button to calibrate. bq20z65EVM-001 SBS 1.1 Impedance Track™ Technology SLUU353 – June 2009 Enabled Battery Management Solution Evaluation Module... -
Page 13: Pro (Advanced) Screen
• When signed is selected, the left pad contains zeroes for a positive number, or the left pad contains F for negative numbers. SLUU353 – June 2009 bq20z65EVM-001 SBS 1.1 Impedance Track™ Technology Enabled Battery Management Solution Evaluation Module Submit Documentation Feedback... -
Page 14: Related Documentation From Texas Instruments
3. bq20z70 and bq20z90 Application Book (SLUA404) 4. Quick-Start Guide for bq20zxx Family Gas Gauge application report (SLUA421) 5. bqEasy™ User's Guide (SLUU278) bq20z65EVM-001 SBS 1.1 Impedance Track™ Technology SLUU353 – June 2009 Enabled Battery Management Solution Evaluation Module Submit Documentation Feedback... - Page 15 EVALUATION BOARD/KIT IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards.
- Page 16 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products. TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2021, Texas Instruments Incorporated...
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