Table of Contents
Advertisement
Features
1
Features
•
Complete evaluation system for the bq27742 fuel gauge with Impedance Track™ Technology
•
Populated circuit module for quick setup
•
Personal computer (PC) software and interface board for easy evaluation
•
Software that allows data logging for system analysis
•
Ability to upgrade to the latest firmware version by flash reprogramming
1.1
Kit Contents
•
bq27742 circuit module
This EVM is used for the evaluation of different bq27742-based products. Please ensure that you visit the
product Web folder at http://www.ti.com to download the latest firmware version, evaluation software, and
documentation for the associated product to be evaluated.
1.2
Ordering Information
EVM Part Number
bq27742EVM
2
bq27742-Based Circuit Module
The bq27742-based circuit module is a complete and compact example solution of a bq27742 circuit for
battery management. The circuit module incorporates a bq27742 battery fuel gauge IC, dual N-FETs for
high-side protection, and all other components necessary to protect and accurately predict the capacity of
a 1-series Li-ion cell.
2.1
Circuit Module Connections
Contacts on the circuit module provide the following connections:
•
Direct connection to the battery cell (TB1 or TP1/TP2): CELL+ and CELL–
•
Connect a charger power to TB2: PACK+ and PACK–, or short the PACK+ and CELL+ to wake up the
gauge, then remove the connection of PACK+ and CELL+ or the charger
•
To the serial communications port: SDA, SCL, and VSS (J10) or HDQ and VSS (J8)
•
The system load and charger connect across charger and load (TB2 or TP9/TP10): PACK–/LOAD–
and PACK+/LOAD+.
Impedance Track is a trademark of Texas Instruments.
Windows is a trademark of Microsoft Corporation.
Microsoft is a registered trademark of Microsoft Corporation.
2
bq27742EVM Single-Cell Impedance Track™ Technology Evaluation Module
Table 1. Ordering Information
Chemistry
Configuration
Li-Ion
Copyright © 2014, Texas Instruments Incorporated
Capacity
1 cell
Any
Submit Documentation Feedback
www.ti.com
SLUUAX8 – March 2014
Advertisement
Table of Contents
