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The bq27x10EVM is a complete evaluation system for the bq27x10 single-cell Li-ion
and Li-polymer battery gas gauge device.
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SLUU259 - October 2006
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bq27x10EVM Single-Cell Battery Fuel Gauge
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Evaluation Module
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bq27x10EVM Single-Cell Battery Fuel Gauge
User's Guide
SLUU259 - October 2006
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Table of Contents
Related Manuals for Texas Instruments bq27x10EVM
Summary of Contents for Texas Instruments bq27x10EVM
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Page 1: Table Of Contents
User's Guide SLUU259 – October 2006 bq27x10EVM Single-Cell Battery Fuel Gauge Evaluation Module The bq27x10EVM is a complete evaluation system for the bq27x10 single-cell Li-ion and Li-polymer battery gas gauge device. Contents ..................Introduction ..............bq27x10-Based Circuit Module ............bq27x10EVM Circuit Module Schematic .......... -
Page 2: Introduction
Introduction Introduction The bq27x10EVM includes one bq27x10EVM circuit module, an EV2300 PC interface board for gas gauge evaluation, a USB cable, CD ROM including Windows™-based PC software and support documentation. The circuit module includes one bq27x10, a current sense resistor, and all other components onboard necessary to calculate remaining battery capacity and predict system run-time to empty. -
Page 3: Bq27X10-Based Circuit Module
Circuit Module bq27x10-Based Circuit Module The bq27x10EVM-based circuit module is an example circuit for battery fuel gauging of a single-cell Li-ion/Li-polymer battery pack. The EVM module has two separate circuits. One is the active bq27x10 fuel gauging circuitry; the other is the logic and power control to program the on-chip configuration EEPROM of the bq27x10. -
Page 4: Bq27X10Evm Circuit Module Schematic
Figure 1. bq27x10EVM Schematic bq27x10EVM Circuit Module Physical Layouts Figure 2 through Figure 7 show the PCB layers and assembly drawing for the bq27x10EVM circuit module. bq27x10EVM Single-Cell Battery Fuel Gauge SLUU259 – October 2006 Evaluation Module Submit Documentation Feedback... -
Page 5: Bq27X10Evm Topside Assembly
Circuit Module Physical Layouts Figure 2. bq27x10EVM Topside Assembly Figure 3. bq27x10EVM Silkscreen SLUU259 – October 2006 bq27x10EVM Single-Cell Battery Fuel Gauge Evaluation Module Submit Documentation Feedback... -
Page 6: Bq27X10Evm Layer 1 Layout
Circuit Module Physical Layouts Figure 4. bq27x10EVM Layer 1 Layout bq27x10EVM Single-Cell Battery Fuel Gauge SLUU259 – October 2006 Evaluation Module Submit Documentation Feedback... -
Page 7: Bq27X10Evm Layer 2 Layout
Circuit Module Physical Layouts Figure 5. bq27x10EVM Layer 2 Layout SLUU259 – October 2006 bq27x10EVM Single-Cell Battery Fuel Gauge Evaluation Module Submit Documentation Feedback... -
Page 8: Bq27X10Evm Circuit Module List Of Materials
Figure 6. bq27x10EVM Layer 3 Layout Figure 7. bq27x10EVM Layer 4 Layout bq27x10EVM Circuit Module List of Materials Table 3 contains the list of materials required for the bq27x10EVM circuit module. bq27x10EVM Single-Cell Battery Fuel Gauge SLUU259 – October 2006 Evaluation Module... -
Page 9: Bq27X10Evm Circuit Module Performance Specification Summary
Header, 2-pin, 100mil spacing, (36-pin strip) Sullins PTC36SAAN HPA212 bq27x10EVM Circuit Module Performance Specification Summary Table 4 gives the performance specifications of the bq27x10EVM circuit module. Table 4. Performance Specification Summary SPECIFICATION UNIT Input Voltage PACK+/BAT– Charge and Discharge Current Charge and discharge maximum is limited by the PCB design and power dissipation of the 20-mΩ... -
Page 10: Evm Hardware And Software Setup
EVM Hardware and Software Setup EVM Hardware and Software Setup This section describes how to install the bq27x10EVM PC software and how to connect the different components of the EVM. Software Installation The following steps install the bq27x10EVM evaluation software: 1. -
Page 11: Operation
Operation Starting the Program Run the program from the Start|Programs|Texas Instruments|bq27X10 Battery Gas Gauge menu sequence. The software defaults to the PC USB port for communication. If the EV2300 is connected to USB port, the program should load and display the initial data screen. If it is the first time that the program is used, then the user is prompted to select between the bq27010 or bq27210. -
Page 12: Eeprom Screen
Loading the Sense Resistor Value The bq27x10EVM comes with a 20-mΩ sense resistor on the circuit board. Make sure the sense resistor value is entered in the Rs box at the top of the initial register screen. This value is used by the PC program to convert the bq27x10 data set to engineering units. - Page 13 • FRST - This command re-initializes all RAM registers. This command is intended for manufacturing use. • SHIP - Once this command is given, the bq27x10EVM enters ship mode if the HDQ has been pulled low for at least 18 seconds. A full reset is forced when the part leaves ship mode.
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Page 14: Pro Screen
This screen can be helpful when evaluating commands that are used in host-side gauge applications. Figure 11. Pro Screen bq27x10EVM Single-Cell Battery Fuel Gauge SLUU259 – October 2006 Evaluation Module... -
Page 15: Calibration Screen
5. To stop the data logging, select File|Close Data Log from the pulldown menu The file can be imported into a text editor, spreadsheet, or word processor program. SLUU259 – October 2006 bq27x10EVM Single-Cell Battery Fuel Gauge Evaluation Module Submit Documentation Feedback... -
Page 16: Example Data Log
1032.73 3:34:40 PM 3695 1065.52 1032.73 3:34:50 PM 3810 1065.52 1032.73 3:35:00 PM 3810 1065.52 1032.73 3:35:10 PM 3813 1065.52 1032.73 3:35:20 PM 3767 1065.52 1032.73 bq27x10EVM Single-Cell Battery Fuel Gauge SLUU259 – October 2006 Evaluation Module Submit Documentation Feedback... - Page 17 This evaluation module (EVM) being provided by Texas Instruments (TI) is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not considered by Texas Instruments to be fit for commercial use. As such, this EVM may not be complete in terms of design and/or manufacturing related protective considerations including product safety measures typically found in the end-product incorporating the module.
- Page 18 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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