SLUUCY9 November   2023 BQ76905

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Before You Begin
    2. 2.2 Required Equipment
    3. 2.3 BQ76905 Circuit Module Use
      1. 2.3.1 Cell Simulator
      2. 2.3.2 Evaluating with Load Current
      3. 2.3.3 Evaluating Charge and Discharge Currents
      4. 2.3.4 Evaluating with Simulated Current
      5. 2.3.5 Reducing the Cell Count
      6. 2.3.6 Connecting Cells
      7. 2.3.7 Connecting to a Host
      8. 2.3.8 Hardware Configuration
        1. 2.3.8.1 Configuration Jumpers
      9. 2.3.9 Configuration Register Programming
  9. 3Quick Start Guide
  10. 4Software
    1. 4.1 Battery Management Studio Software
      1. 4.1.1 System Requirements
      2. 4.1.2 Installing BQStudio
      3. 4.1.3 BQ76905 bqz File Installation
      4. 4.1.4 BQStudio Operation and Registers View
      5. 4.1.5 Commands
      6. 4.1.6 Data Memory
        1. 4.1.6.1 Entering, Saving, and Loading Configuration
      7. 4.1.7 Command Sequences
  11. 5Hardware Design Files
    1. 5.1 Schematic
    2. 5.2 Board Layout
    3. 5.3 Bill of Materials
  12. 6Additional Information
    1.     Trademarks

1.1 Introduction

The BQ76905 features a high accuracy monitoring system with dedicated coulomb counter and accumulated charge integration, a highly configurable protection subsystem, and support for host controlled cell balancing. Integration includes low-side protection NFET drivers, a programmable LDO for external system use, and an I2C host communication interface supporting up to 400-kHz operation with optional CRC. The evaluation module includes one BQ76905 integrated circuit (IC), sense resistor, one thermistor, power FETs, and all other onboard components necessary to protect the cells from overcharge, over discharge, short circuit, overcurrent discharge, over temperature, and under temperature.