Texas Instruments bq2060AEVM-001 User manual

bq2060AEVM-001 and
bq2060AEVM-002
SBS 1.1 Battery Management Solution
Evaluation Module
December 2003 High Performance Analog
User’s Guide
SLUU179

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Mailing Address:
Texas Instruments
Post Office Box 655303
Dallas, Texas 75265
Copyright 2003, Texas Instruments Incorporated

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.
As a prototype, this product does not fall within the scope of the European Union directive on electromagnetic
compatibility and therefore may not meet the technical requirements of the directive.
Should this evaluation kit not meet the specifications indicated in the EVM User’s Guide, the kit may be returned
within 30 days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE
WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED,
IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY
PARTICULAR PURPOSE.
The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user
indemnifies TI from all claims arising from the handling or use of the goods. Please be aware that the products
received may not be regulatory compliant or agency certified (FCC, UL, CE, etc.). Due to the open construction
of the product, it is the user’s responsibility to take any and all appropriate precautions with regard to electrostatic
discharge.
EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE LIABLE
TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.
TI currently deals with a variety of customers for products, and therefore our arrangement with the user is not
exclusive.
TI assumes no liability for applications assistance, customer product design, software performance, or
infringement of patents or services described herein.
Please read the EVM User’s Guide and, specifically, the EVM Warnings and Restrictions notice in the EVM
User’s Guide prior to handling the product. This notice contains important safety information about temperatures
and voltages. For further safety concerns, please contact the TI application engineer.
Persons handling the product must have electronics training and observe good laboratory practice standards.
No license is granted under any patent right or other intellectual property right of TI covering or relating to any
machine, process, or combination in which such TI products or services might be or are used.
Mailing Address:
Texas Instruments
Post Office Box 655303
Dallas, Texas 75265
Copyright 2003, Texas Instruments Incorporated

EVM WARNINGS AND RESTRICTIONS
It is important to operate this EVM within the input voltage range of 3 V and 25 V, with a
maximum voltage drop across the sense resistor of 250 mV (1−W power dissipation).
Exceeding the specified input range may cause unexpected operation and/or irreversible
damage to the EVM. If there are questions concerning the input range, please contact a TI
field representative prior to connecting the input power.
Applying loads outside of the specified output range may result in unintended operation and/or
possible permanent damage to the EVM. Please consult the EVM User’s Guide prior to
connecting any load to the EVM output. If there is uncertainty as to the load specification,
please contact a TI field representative.
During normal operation, some circuit components may have case temperatures greater than
60°C. The EVM is designed to operate properly with certain components above 60°C as long
as the input and output ranges are maintained. These components include but are not limited
to linear regulators, switching transistors, pass transistors, and current sense resistors. These
types of devices can be identified using the 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 2003, Texas Instruments Incorporated

How to Use This Manual
v
Preface
Read This First
About This Manual
This user’s guide describes the characteristics and operation of the
bq2060AEVM-001 and bq2060AEVM-002 evaluation module. The EVM is
used to evaluate the bq2060A battery management system. A complete circuit
description, operating procedures, and bill of materials are included. The EVM
schematic is appended to the user’s guide PDF.
How to Use This Manual
This document contains the following chapters:
-Chapter 1—Introduction
-Chapter 2—bq2060A-Based Circuit Module
-Chapter 3—Circuit Module Physical Layout
-Chapter 4—EVM Hardware and Software Setup
-Chapter 5—Operation
FCC Warning
This equipment is intended for use in a laboratory test environment only. It gen-
erates, uses, and can radiate radio frequency energy and has not been tested
for compliance with the limits of computing devices pursuant to subpart J of
part 15 of FCC rules, which are designed to provide reasonable protection
against radio frequency interference. Operation of this equipment in other en-
vironments may cause interference with radio communications, in which case
the user at his own expense will be required to take whatever measures may
be required to correct this interference.

vi

Contents
vii
Contents
1 Introduction 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Overview 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Features 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Kit Contents 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4 Ordering Information 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 bq2060A-Based Circuit Module 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1 Pin Descriptions 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 bq2060A Cirduit Module Bill of Materials 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 bq2060A Cirduit Module Performance Specification Summary 2-3. . . . . . . . . . . . . . . . . . . .
3 Circuit Module Physical Layouts 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Board Layout 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 EVM Hardware and Software Setup 4-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1 Software Installation 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 Hardware Connection 4-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2.1 Connecting the bq2060A Circuit Module to a Battery Pack 4-2. . . . . . . . . . . . . . . .
4.2.2 PC Interface Connection 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Operation 5-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1 Starting the Program 5-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2 Extended Data Screen 5-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.3 Data Logging 5-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.4 Setting Programmable bq2060A Options 5-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.5 Calibration of a bq2060A Based Module Using the EV2200-60 Software 5-10. . . . . . . . . .
5.6 Direct Access Communication 5-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.7 Schematic Appended to the PDF document. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents
viii
Figures
3−1 bq2060AEVM-00X Layout 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4−1 bq2060A Circuit Module Connection to LION Cells and System Load/Charger 4-3. . . . . . . .
4−2 bq2060A Circuit Module Connection to NiMH Cells and System Load/Charger 4-4. . . . . . . .
5−1 SBS Data Screen 5-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5−2 SBS Data Screen—Static Data Window 5-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5−3 SBS Extended Data Screen 5-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5−4 LION EEPROM Data Screen 5-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5−5 NiMH EEPROM Data Screen 5-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5−6 Read EEPROM Values Screen 5-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5−7 EEPROM Values to be Written Screen 5-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5−8 EEPROM Data Screen—bq2060A Module Calibration Locations 5-9. . . . . . . . . . . . . . . . . . . .
5−9 VFC Offset Screen 5-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5−10 3 Cell LION Calibration Screen 5-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5−11 Pro Screen 5-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tables
1−1 Ordering Information 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2−1 SLUP023-00X Bill of Materials 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2−2 Performance Specification Summary 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4−1 Circuit Module to EV2200 Connections 4-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4−2 Circuit Module EEPROM Connector to EV2200 Connections 4-4. . . . . . . . . . . . . . . . . . . . . . .
5−1 Example Log File 5-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1
Introduction
Introduction
This EVM is a complete evaluation system for the bq2060A battery
management system. The bq2060A is backwards compatible with the
bq2060. New features in the bq2060A can be accessed from the EEPROM
screen in the EV2200-60 software.
For this document bq2060AEVM-00X is used for both the bq2060AEVM-001
and the bq2060AEVM-002.
Topic Page
1.1 Overview 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Features 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Kit Contents 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4 Ordering Information 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 1

Overview
1-2
1.1 Overview
The EVM includes one bq2060A circuit module, a current sense resistor, a
thermistor, an EV2200 PC interface board for gas gauge interface, a PC serial
cable, and an EEPROM connector. The latest windows based EV2200-60 PC
software can be downloaded from the TI web site. The circuit module includes
one bq2060A IC and all other onboard components necessary to monitor and
predict capacity of Li-Ion or Li-Polymer (bq2060AEVM-001) or NiMH
(bq2060AEVM-002) cells. Protection for Li-Ion or Li-Polymer cells is not in-
cluded on this module. The circuit module connects directly across the cells
in a battery. With the EV2200 interface board and software, the user can read
the bq2060A data registers, program the chipset for different pack configura-
tions, log cycling data for further evaluation and evaluate the overall functional-
ity of the bq2060A solution under different charge and discharge conditions.
1.2 Features
-Complete evaluation system for the bq2060A SBS 1.1 compliant
advanced gas gauge
-Populated circuit module for quick setup
-PC software and interface board for easy evaluation
-Software that allows data-logging for system analysis
1.3 Kit Contents
-bq2060A circuit module
-EEPROM Interface connector with wires
-Sense resistor
-EV2200 PC interface board
-PC serial cable
-Set of support documentation
-Set of evaluation software disks entitled EV2200-60
To download the latest EVM software:
1) Go to www.ti.com
2) Search for bq2060A, and open the product folder.
3) Click on | Development Tools |
4) Click the appropriate EVM (LION−001 or NiMH–002) and download the
EV2200-60 software under the Contents section.
5) You will find software and hardware setup guidelines in Chapter 5 of this
document.
1.4 Ordering Information
Table 1−1.Ordering Information
EVM Part Number Chemistry Configuration Capacity
bq2060AEVM−001 Li-Ion 3 or 4 cell 800 mAH to
32000 mAH
bq2060AEVM−002 NIMH 10 cell 800 mAH to
32000 mAH