Related Manuals for Texas Instruments bq26231EVM-001
Summary of Contents for Texas Instruments bq26231EVM-001
- Page 1 bq26231EVM 001 Single Cell Battery Monitor Evaluation Module User’s Guide July 2002 SLUU126...
- Page 2 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 3 EVM IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not considered by TI to be fit for commercial use. As such, the goods being provided may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety measures typically found in the end product incorporating the goods.
- Page 4 EVM schematic located in the EVM User’s Guide. When placing measurement probes near these devices during operation, please be aware that these devices may be very warm to the touch. Mailing Address: Texas Instruments Post Office Box 655303 Dallas, Texas 75265 Copyright 2002, Texas Instruments Incorporated...
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Page 5: Table Of Contents
............3.2.1 Connecting the bq26231EVM-001 Circuit Module to a Battery Pack .. - Page 6 ......... 3–1 bq26231EVM-001 Circuit Module Connection to Cells and System Load/Charger ..
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Page 7: Introduction
Chapter 1 Introduction The bq26231EVM–001 is a complete evaluation system for the battery monitoring IC bq26231. The EVM includes one bq26231 circuit module, an EV2200 PC interface board for gas-gauge evaluation, a PC serial cable, and Windows-based PC software. The circuit module includes one bq26231 and all other components onboard necessary to monitor capacity and other critical parameters in a one-cell Li-Ion battery pack. -
Page 8: Features
Features 1.1 Features Complete evaluation system for the bq26231 battery monitor IC Populated circuit module for quick setup PC software and interface board for easy evaluation Software that allows data logging for system analysis 1.2 Kit Contents bq26231 circuit module with sense resistor EV2200 PC interface board Set of evaluation software disks entitled EV220–231 PC serial cable... - Page 9 Chapter 2 Circuit Module The bq26231EVM-001 based circuit module is a complete and compact example of a circuit for battery monitoring of a single-cell Li-Ion pack. The circuit module incorporates a bq26231 battery monitor IC and all other components necessary to accurately protect and monitor the charge and discharge of single Li-Ion cell.
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Page 10: Pin Descriptions
Cell positive/pack positive (PACK+) BAT_ Cell negative PACK– Pack negative Serial communications port Register backup input 2.2 Schematic Figure 2–1 is the bq26231EVM-001 (SLUP148) circuit module schematic diagram. Figure 2–1. bq26231EVM-001 Schematic BAT+ 100 Ω BAT– 100 kΩ 100 kΩ... -
Page 11: Board Layout
Board Layout 2.3 Board Layout Figure 2–2 shows the PCB layers and assembly drawing for the bq26231EVM-001 circuit module (SLUP148). Figure 2–2. bq26231EVM-001 Circuit Module Layout 44.45 TEXAS INSTRUMENTS SLUP148 A TOP ASSEMBLY 44.45 TEXAS INSTRUMENTS SLUP148 A BOTTOM ASSEMBLY 25.40... - Page 12 Board Layout Figure 2–2. bq26231EVM-001 Circuit Module Layout (Continued) TEXAS INSTRUMENTS SLUP148 REV. A LAYER 1 TEXAS INSTRUMENTS SLUP148 REV. A LAYER 2 TEXAS INSTRUMENTS SLUP148 REV. A MASK 1 TEXAS INSTRUMENTS SLUP148 REV. A MASK 2...
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Page 13: Bill Of Materials
Bill of Materials 2.4 Bill of Materials Table 2–1 lists materials required for the bq26231EVM-001 circuit module. Table 2–1. Bill of Materials Ref Des Qty–002 Description MFG Part No. Size Printed circuit board, 0.031, See FAB DWG FR4, SMOBC, HASl 3,5 mm ×... -
Page 15: Evm Hardware And Software Setup
Chapter 3 EVM Hardware and Software Setup This section describes how to install the EV2200-231 PC software and how to connect the components of the EVM. Topic Page Software Installation ......... . Hardware Connection . -
Page 16: Software Installation
3) PC 3.2.1 Connecting the bq26231EVM-001 Circuit Module to a Battery Pack Figure 3–1 shows how to connect the bq26231EVM-001 circuit module to a Li-Ion cell and the system load/charger. Figure 3–1. bq26231EVM-001 Circuit Module Connection to Cells and System... -
Page 17: Pc Interface Connection
Hardware Connection 3.2.2 PC Interface Connection The following steps configure the hardware for interface to the PC: 1) Connect bq26231EVM-001 to the EV2200 using wire leads as shown in Table 3–1. Table 3–1. Circuit Module-to-EV2200 Connection bq26231 Based Battery EV2200 SMBD/HDQ1 PACK–... -
Page 19: Operation
Chapter 4 Operation This chapter details the installation operation of the EVM2200-231 software. Topic Page Software Installation ......... . Starting the Program . -
Page 20: Software Installation
Software Installation 4.1 Software Installation The following steps install the EV2200–231 software: 1) Insert disk 1 into a 3 1/2 inch floppy drive. 2) Select the 3 1/2 inch drive using My Computer or Windows Explorer. 3) Double-click the Setup.exe icon. 4) The setup program prompts for the remaining disks and installs a Windows application group. -
Page 21: Initial Register Screen
Starting the Program Figure 4–1. Initial Register Screen Operation... -
Page 22: Software Instructions
Software Instructions Figure 4–2. Loading Screen That Shows the Board Detection Is Failing 4.3 Software Instructions When the software is running, you can select 4 tabs: 26231 Registers, Graphs, Read/Write Regs., and Setup. 4.3.1 bq26231 Registers Screen The register section at the top of this screen is common to the Graphs and the Read/Write Regs. -
Page 23: Read/Write Regs Screen
Software Instructions 4.3.3 Read/Write Regs Screen The function of this tab is to allow the user to program any of the data registers, counters, and control registers within the bq26231. Use the memory map in the bq26231 data sheet for a guide to their individual uses. Simply enter the address and any data (for writes), and click the appropriate button. -
Page 24: Read/Write Regs. Screen
Software Instructions Figure 4–4. Read/Write Regs. Screen... - Page 25 Software Instructions Figure 4–5. Setup Screen Operation...
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Page 26: Data Logging Screen
Data Logging 4.4 Data Logging The bq26231 registers data are logged by clicking the Turn Log On button of 26231 Registers screen. This creates a log file and shows the data on the 26231 Registers screen. See Figure 4–6 and Figure 4–7. Figure 4–6. -
Page 27: Example Of Data Logged Screen
Data Logging Figure 4–7. Example of Data Logged Screen Operation... - Page 28 4-10...
- Page 29 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments BQ26231EVM-001...
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