SLVU957A September   2019  – November 2021 BQ76922

 

  1.   Trademarks
  2. 1Features
    1. 1.1 Kit Contents
    2. 1.2 Ordering Information
    3. 1.3 BQ76922EVM Circuit Module Performance Specification Summary
    4. 1.4 Required Equipment
  3. 2BQ76922EVM Quick Start Guide
    1. 2.1 Before You Begin
    2. 2.2 Quick Start
  4. 3Interface Adapter
  5. 4Battery Management Studio Software
    1. 4.1 System Requirements
    2. 4.2 Installing BQStudio
    3. 4.3 BQ76922 bqz File Installation
    4. 4.4 BQStudio Operation and Registers View
    5. 4.5 Commands
    6. 4.6 Data Memory
      1. 4.6.1 Entering, Saving, and Loading Configuration
      2. 4.6.2 OTP Programming
    7. 4.7 Calibration
    8. 4.8 Command Sequences
  6. 5BQ76922EVM Circuit Module Use
    1. 5.1 Cell Simulator
    2. 5.2 Evaluating with Load Current
    3. 5.3 Evaluating Charge and Discharge Currents
    4. 5.4 Evaluating with Simulated Current
    5. 5.5 Reducing the Cell Count
    6. 5.6 Connecting Cells
    7. 5.7 Connecting to a Host
    8. 5.8 Hardware Configuration
      1. 5.8.1 Configuration Jumpers
      2. 5.8.2 Unused Components
    9. 5.9 Configuration Register Programming
  7. 6BQ76922EVM Circuit Module Physical Construction
    1. 6.1 Board Layout
    2. 6.2 Bill of Materials
    3. 6.3 REACH Compliance
    4. 6.4 Schematic
  8. 7Related Documents from Texas Instruments
  9. 8Revision History

3 Interface Adapter

The BQStudio software uses either the on-board USB interface adapter or separate EV2400 interface board to provide communication with the EVM board from the computer. The on-board interface identifies as an EV2400. The EV2400 uses operating system drivers and no separate installation is required.

When connecting an external EV2400 change the J7 jumpers on the board from the INT to the EXT position. Since the external EV2400 provides pull ups, do not install shunts at the PU positions. Figure 3-1 shows an example of the EVM connected with an external EV2400.

Figure 3-1 EVM Connection with External EV2400

EV2400 versions 0.28 and newer are compatible with the on-board interface. The latest version is recommended. If updates are available for the on-board interface adapter, they are available from the EV2400 tool folder on the web, www.ti.com/tool/EV2400. Do not install the EV2400 firmware version 0.18 in the on-board adapter.

The BQ76922 devices are not supported with the older EV2300 interface.

CAUTION:

Do not program the on-board adapter with version 0.18 or earlier firmware.