SLUUCV6 June   2024 BQ2969

 

  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
      1. 1.2.1 Required Equipment
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Setup
    2. 2.2 BQ2969 Circuit Module Use
      1. 2.2.1 Cell Simulator
      2. 2.2.2 Reducing the Cell Count
      3. 2.2.3 Connecting Cells
    3. 2.3 Best Practices
  9. 3Hardware Design Files
    1. 3.1 BQ2969EVM Circuit Module Physical Construction
      1. 3.1.1 Schematics
      2. 3.1.2 Board Layout
      3. 3.1.3 Bill of Materials
  10. 4Additional Information
    1. 4.1 Trademarks
  11. 5Related Documents from Texas Instruments

2.2.1 Cell Simulator

The EVM includes a resistive cell simulator made up of 200Ω series resistors. The taps of the resistor network are connected to the cell inputs using shunts on the J6 header. BAT- is always connected to the resistor divider network. Install a shunt on the top cell location to connect BAT+ to the resistor divider to provide simulated voltages for the other cell inputs. With the top shunt installed the resistor divider is connected and shunts on the lower cell positions connect the inputs to the simulated voltages. With the top shunt removed all lower inputs with installed shunts are pulled to VSS. There is no indication of the cell simulator connection, the user must be aware of the shunt installation. The 200Ω resistors provide a load of 5mA per volt on each cell.