SLUUCD7A May   2021  – May 2026

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Features
    1. 1.1 Kit Contents
    2. 1.2 Ordering Information
  5. 2 BQ27427-Based Circuit Module
    1. 2.1 Circuit Module Connections
    2. 2.2 Pin Descriptions
  6. 3 Evaluation Module Physical Layout, Bill of Materials and Schematic
    1. 3.1 Board Layout
    2. 3.2 Bill of Materials
    3. 3.3 Schematic
    4. 3.4 BQ27427 Circuits Module Performance Specification Summary
  7. 4 EVM Hardware and Software Setup
    1. 4.1 Software Installation
  8. 5 Troubleshooting Unexpected Dialog Boxes
  9. 6 Hardware Connection
    1. 6.1 Connecting the BQ27427 Circuit Module to a Battery Pack
    2. 6.2 PC Interface Connection
  10. 7 Operation
    1. 7.1 Starting the Program
    2. 7.2 Setting Programmable BQ27427 Options
  11. 8 Calibration
    1. 8.1 Calibrating the BQ27427
    2. 8.2 Voltage Calibration
    3. 8.3 Board Offset Calibration
  12. 9 Advanced Communication I2C
    1. 9.1 I2C Communication
  13. 10Related Documentation
  14. 11Revision History

Abstract

This evaluation module (EVM) is a complete evaluation system for the BQ27427. The EVM includes one BQ27427 circuit module with an integrated current-sense resistor. A separated orderable EV2400 PC interface board for gas gauge interface along with a PC USB cable, and Microsoft® Windows® based PC software is needed when using this EVM. The circuit module includes one BQ27427 integrated circuit and all other onboard components necessary to monitor and predict capacity for a system-side fuel gauge solution. The circuit module connected with the EV2400 interface board and software, the user can:

  • Read the BQ27427 data registers
  • Update the RAM for different configurations
  • Log cycling data for further evaluation
  • Evaluate the overall functionality of the BQ27427 solution under different charge and discharge conditions

The latest Windows-based PC software can be downloaded from the product folder on the Texas Instruments Web site.