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Summary of Contents for Texas Instruments bq2014HEVM-001
- Page 1 bq2014HEVM 001 Gas Gauge IC Evaluation Module User’s Guide May 2001 Advanced Analog Products SLUU105...
- Page 2 IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, patent infringement, and limitation of liability.
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Page 3: Table Of Contents
Running Title—Attribute Reference Contents Introduction ..............Features . - Page 4 Running Title—Attribute Reference Figures 3–1 DM2014H Schematic ............4–1 DM2014H Layout .
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Page 5: Introduction
Chapter 1 Introduction The bq2014H EVM is a complete evaluation system for the bq2014H gas-gauge IC for NiCd and NiMH. The EVM includes a DM2014H circuit module, an EV2200 PC interface board for gas-gauge vvaluation, a PC serial cable, and Windows-based PC software. The DM2014H circuit module includes one bq2014H IC, five LEDs to display remaining capacity, and all other components onboard necessary to monitor capacity and other critical parameters in NiCd or NiMH battery packs. -
Page 6: Features
Features 1.1 Features Complete evaluation system for the bq2014H gas-gauge IC Preprogrammed DM2014H module for quick setup PC software and interface board for easy evaluation Software that allows data logging for system analysis 1.2 Kit Contents DM2014H preconfigured circuit module with sense resistor EV2200 PC interface board Set of evaluation software disks entitled EV2200-HDQ PC serial cable... -
Page 7: Dm2014H-Bq2014H-Based Circuit Module
Chapter 2 DM2014H—bq2014H-Based Circuit Module The DM2014H circuit module is a complete and compact example solution of a bq2014H circuit for capacity monitoring of NiCd or NiMH packs. The DM2014H incorporates a bq2014H gas-gauge IC and all other components necessary to accurately monitor and display the capacity of up to 14 nickel cells. -
Page 8: Pin Descriptions
(L) state requires the pulldown resistor, and the float (Z) requires no resistors on the programming pin. The shaded area of the tables indicates the bq2014HEVM-001 configuration. See the bq2014H data sheet for a complete description of how the bq2014H is programmed. -
Page 9: Pack Voltage
R7 configure this as shown in the schematic and are set as shown in Table 2–3. Table 2–3. Pack Voltage Programming End-of-Discharge End-of-Discharge EVM Part Number Level 1 Level 2 bq2014HEVM-001 1.2 MΩ 1.2 MΩ 100 K 10 V 9.5 V 2.2.4... -
Page 11: Dm2014H Schematic
Chapter 3 DM2014H Schematic The DM2014H schematic shows all possible components on the board for var- ious configurations, including all configuration resistors. Only those resistors that set the desired configuration should be installed. The schematic notes in- dicate where variations exist. Topic Page Schematic... - Page 12 Schematic 3.1 Schematic Figure 3–1 is the DM2014H schematic diagram. Figure 3–1. DM2014H Schematic...
- Page 13 Chapter 4 DM2014H Physical Layouts This chapter contains the board layout and assembly drawings for the DM2014H. Topic Page Board Layout ..........DM2014H Physical Layouts...
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Page 14: Dm2014H Layout
Board Layout 4.1 Board Layout Figure 4–1 shows the PCB layers and assembly drawing for the DM2014H. Figure 4–1. DM2014H Layout 04/06/99 Rev. A Layer 1 Side Silkscreen 04/06/99 Rev. A Layer 2 Side Silkscreen... - Page 15 Chapter 5 DM2014H Bill of Materials This chapter contains the bill of materials required for the DM2014H. Topic Page Bill of Materials ..........DM2014H Bill of Materials...
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Page 16: Bill Of Materials
Bill of Materials 5.1 Bill of Materials Table 5–1 lists materials required for the DM2014H. Table 5–1. Bill of Materials Ref Des Qty –001 Description MFG PART# Size Printed-circuit board, 0.031, REV. A See FAB DWG FR4, SMOBC, HASL Capacitor, ceramic, 1 µF, 25 C1, C5 Panasonic ECJ–3YB1E105K... -
Page 17: Performance Specification Summary
Chapter 6 DM2014H Performance Specification Summary This chapter summarizes the performance specifications of the DM2014H. Table 6–1 gives the performance specifications of the circuit. Table 6–1. Performance Specification Summary Specification Units Charge and Discharge Current 0.05 Note: Charge and discharge maximums are limited by the PCB design. DM2014H Performance Specification Summary... - Page 19 Chapter 7 EVM Hardware and Software Setup This section describes how to install the bq2014H EVM PC software and how to connect the different components of the EVM. Topic Page EVM Hardware and Software Setup ......Hardware Connection .
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Page 20: Dm2014H Connection To Cells, Sense Resistor, And System Load/Charger
Software Installation 7.1 Software Installation The following steps install the EV2200–HDQ 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 File Manager. 3) Double-click the Setup.exe icon. The setup program prompts for the remaining disks and installs a Windows application group. -
Page 21: Dm2014H-To-Ev2200 Connection
Hardware Connection 7.2.2 PC Interface Connection The following steps configure the hardware for interface to the PC: 1) Connect the DM2014H based smart battery to the EV2200 using wire leads as in Table 7–1. 2) Connect the PC serial cable to the EV2200 and the PC COM port. Table 7–1. - Page 23 Chapter 8 Operation This chapter details the operation of the bq2014H EVM software. Topic Page Starting the Program ......... . Initialization .
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Page 24: Initial Data Screen
Starting the Program 8.1 Starting the Program Run EV2200-xxH from the Start|Programs|EV2200-xxH menu sequence. The software requests the PC communications port the first time it is run after installation. Choose the Retry Auto-detection button for automatic port configuration. After the port is detected, the software displays the bq2014H data screen. -
Page 25: Setup Screen
Initialization Figure 8–2. Setup Screen Enter the corresponding resistor values in the Circuit Configuration box. These values can be saved to disk using the Save Setup to Disk button so that they are automatically called up when the program loads. Table 8–1. -
Page 26: Bq2014H Data Screen
Data Screen 8.3 Data Screen After the setup parameters are entered, return to the bq2014H data screen to see the bq2014H registers. The screen displays the names and values of all the accessible registers of the bq2014H. The values can be displayed in hexa- decimal or decimal. -
Page 27: Status Screen
Status Screen 8.4 Status Screen The Status screen graphically illustrates bq2014H operation. The program shows the average current activity as well as the temperature and remaining capacity of the battery under evaluation. Figure 8–4. Status Screen 8.5 Pro Screen The Pro screen allows read and write access to all the registers of the bq2014H. -
Page 28: Data Logging
Status Screen To read or write a location: Enter the address location of the register in the Address box. The register and address can be selected from the pulldown menu. Enter the data to be written if applicable. Depress the Read or Write button. The Send Break button sends a communication timing reset signal to the bq2014H and should be depressed each time a bq2014H-based batter is con- nected to the EV2200.
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