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bq20z40EVM-001 SBS 1.1 Impedance Track™Technology
This EVM is a complete evaluation system for the bq20z40/bq29330/bq29412 battery management
system. The EVM includes one bq20z40/bq29330/bq29412 circuit module, a current sense resistor, two
thermistors, and a link to Windows™-based PC software. The circuit module includes one bq20z40 IC,
one bq29330 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,
overdischarge, 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 bq20z40 data registers, program the chipset for different pack
configurations, log cycling data for further evaluation, and evaluate the overall functionality of the
bq20z40/bq29330/bq29412 solution under different charge and discharge conditions.
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Schematic
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Calibration Screen
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Impedance Track is a trademark of Texas Instruments.
Windows is a trademark of Microsoft Corporation.
SLUU320C - January 2009 - Revised June 2009
Submit Documentation Feedback
Enabled Battery Management Solution EVM
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SLUU320C - January 2009 - Revised June 2009
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List of Tables
bq20z40EVM-001 SBS 1.1 Impedance Track™Technology
Enabled Battery Management Solution EVM
User's Guide
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Related Manuals for Texas Instruments BQ20Z40EVM-001
Summary of Contents for Texas Instruments BQ20Z40EVM-001
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Page 1: Table Of Contents
..................Performance Specification Summary ................... Circuit Module to EV2300 Connections Impedance Track is a trademark of Texas Instruments. Windows is a trademark of Microsoft Corporation. SLUU320C – January 2009 – Revised June 2009 bq20z40EVM-001 SBS 1.1 Impedance Track™Technology Enabled Battery Management Solution EVM... -
Page 2: Features
• To the serial communications port (SMBC, SMBD, VSS) • The system load and charger connect across PACK+ and PACK– • To the system present pin (SYS PRES) bq20z40EVM-001 SBS 1.1 Impedance Track™Technology SLUU320C – January 2009 – Revised June 2009 Enabled Battery Management Solution EVM... -
Page 3: Bq20Z40/Bq29330 Circuit Module Schematic
For the battery pack designer: D3 may have side effects. See the application report bq29330 External Short-Circuit Protection (SLUA436) SLUU320C – January 2009 – Revised June 2009 bq20z40EVM-001 SBS 1.1 Impedance Track™Technology Enabled Battery Management Solution EVM Submit Documentation Feedback... -
Page 4: Bq20Z40Evm-001 Layout (Silk Screen)
Circuit Module Physical Layouts and Bill of Materials www.ti.com Board Layout This section shows the dimensions, PCB layers, and assembly drawing for the bq20z40/bq29330 module. Figure 1. bq20z40EVM-001 Layout (Silk Screen) Figure 2. Top Assembly Figure 3. Top Layer bq20z40EVM-001 SBS 1.1 Impedance Track™Technology SLUU320C –... -
Page 5: Bottom Layer
Circuit Module Physical Layouts and Bill of Materials www.ti.com Figure 4. Bottom Layer Figure 5. Bottom Assembly SLUU320C – January 2009 – Revised June 2009 bq20z40EVM-001 SBS 1.1 Impedance Track™Technology Enabled Battery Management Solution EVM Submit Documentation Feedback... -
Page 6: Bill Of Materials
IC, 2, 3, or 4 cell series protection control AFE TSSOP-30 bq29330DBT bq20z40PW IC, Impedance Track Gas Gauge TSSOP-20 bq20z40PW bq20z40EVM-001 SBS 1.1 Impedance Track™Technology SLUU320C – January 2009 – Revised June 2009 Enabled Battery Management Solution EVM Submit Documentation Feedback... - Page 7 Circuit Module Physical Layouts and Bill of Materials www.ti.com Figure 6. Schematic SLUU320C – January 2009 – Revised June 2009 bq20z40EVM-001 SBS 1.1 Impedance Track™Technology Enabled Battery Management Solution EVM Submit Documentation Feedback...
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Page 8: Evm Hardware And Software Setup
Input voltage Pack+ to Pack– Charge and discharge current EVM Hardware and Software Setup This section describes how to install the bq20z40EVM-001 PC software, and how to connect the different components of the EVM. System Requirements The bq20z40EVSW requires Windows 2000 or Windows XP. -
Page 9: Bq20Z40/Bq29330 Circuit Module Connection To Cells And System Load/Charger
SMBC SMBC 2. Connect the PC USB cable to the EV2300 and the PC USB port. The bq20z40EVM-001 is now set up for operation. SLUU320C – January 2009 – Revised June 2009 bq20z40EVM-001 SBS 1.1 Impedance Track™Technology Enabled Battery Management Solution EVM... -
Page 10: Operation
With the EV2300 and the bq20z40EVM connected to the computer, run bq20z40 EVSW from the Start | All Programs | Texas Instruments | bq Evaluation Software menu sequence. The SBS Data screen appears. Data begins to appear once the <Refresh> (single time scan) button is clicked, or when the <Keep Scanning>... -
Page 11: Sbs Data Screen
IMPORTANT: The correct setting of these options is essential to get the best performance. The settings can be configured using the Data Flash screen. SLUU320C – January 2009 – Revised June 2009 bq20z40EVM-001 SBS 1.1 Impedance Track™Technology Enabled Battery Management Solution EVM Submit Documentation Feedback... -
Page 12: Data Flash Screen, 1St Level Safety Class
If the data flash screen is blank, then the bq20z40 that is being used may not be supported by the bqEVSW version that is being used. An upgrade may be required. bq20z40EVM-001 SBS 1.1 Impedance Track™Technology SLUU320C – January 2009 – Revised June 2009... -
Page 13: Calibration Screen
Pack Voltage Calibration calibrates incorrectly. Remove load/external voltage applied between Pack+ and Pack-. Press the Pack Voltage button to calibrate. SLUU320C – January 2009 – Revised June 2009 bq20z40EVM-001 SBS 1.1 Impedance Track™Technology Enabled Battery Management Solution EVM Submit Documentation Feedback... - Page 14 Calibration Screen www.ti.com Figure 10. Calibration Screen bq20z40EVM-001 SBS 1.1 Impedance Track™Technology SLUU320C – January 2009 – Revised June 2009 Enabled Battery Management Solution EVM Submit Documentation Feedback...
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Page 15: Pro (Advanced) Screen
10.3 Programming Allows for device reprogramming from unencrypted and encrypted files. Figure 11. Pro (Advanced) Screen SLUU320C – January 2009 – Revised June 2009 bq20z40EVM-001 SBS 1.1 Impedance Track™Technology Enabled Battery Management Solution EVM Submit Documentation Feedback... -
Page 16: Related Documentation From Texas Instruments
Related Documentation from Texas Instruments To obtain a copy of any of the following TI documents, call the Texas Instruments Literature Response Center at (800) 477-8924 or the Product Information Center (PIC) at (972) 644-5580. When ordering, identify this document by its title and literature number. Updated documents can also be obtained through the TI Web site at www.ti.com... - Page 17 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 18 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.
- Page 19 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments BQ20Z40EVM-001...
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