SLVUDW8 May   2026

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1 Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specifications
    4. 1.4 Device Information
  6. 2 Hardware Setup
    1. 2.1 Hardware Requirements
    2. 2.2 Connecting the BQ27Z846 Circuit Module to a Battery Pack
    3. 2.3 EVM Jumpers and Terminal Block Description
  7. 3 Software Setup
    1. 3.1 System Requirements
    2. 3.2 Software Installation
    3. 3.3 Updating Firmware
    4. 3.4 Troubleshooting Unexpected Dialog Boxes
    5. 3.5 Using bqStudio
      1. 3.5.1 Starting the Program
      2. 3.5.2 Setting Programmable BQ27Z846 Options
  8. 4 Calibrating Gauge Measurements
    1. 4.1 Voltage Calibration
    2. 4.2 Current Calibration
  9. 5 Chemical ID
    1. 5.1 Chemical ID Selection Process
    2. 5.2 Hardware Requirements and Setup
    3. 5.3 Logging Data in bqStudio
    4. 5.4 GPCCHEM Tool
    5. 5.5 Programming a Chemical ID
    6. 5.6 Further Resources for Chemical ID Process
  10. 6 Learning Cycle and Golden Image
    1. 6.1 Learning Cycle Process Description
    2. 6.2 Data Memory Configuration
    3. 6.3 Learning Cycle Steps
    4. 6.4 Low Temperature Optimization
    5. 6.5 Creating the Golden Image File
    6. 6.6 Programming the Golden Image File
  11. 7 Gauge Communication
    1. 7.1 Advanced Communication in bqStudio
    2. 7.2 Standard Data Commands
    3. 7.3 Manufacturer Access Commands
    4. 7.4 Further Resources on Gauge Communication
  12. 8 BQ27Z846-Based Circuit Module
    1. 8.1 Circuit Module Connections
    2. 8.2 Pin Descriptions
  13. 9 Hardware Design Files
    1. 9.1 Board Layout
    2. 9.2 Schematic
    3. 9.3 Bill of Materials
  14. 10Additional Information
    1.     Trademarks
  15. 11Revision History

2.3 EVM Jumpers and Terminal Block Description

The following section describes the configurable jumpers and terminal blocks and their purpose on this board:

  1. J1 – Battery Input: This terminal block is the input for the positive and negative leads of your 1SXP battery pack.
  2. J2 – Charger/Load Connection: This terminal block is the input/output for the charger/load. Two of the connections are for PACK- and two of the connections are for PACK+.
  3. J3 – Interrupt Pin Output (INT): This terminal block connects to the INT pin of the BQ27Z846. Both connections on this terminal block connect to the INT pin.
  4. J4 - Current Sense Resistor Positive Input (SRP): This jumper selects high-side or low-side current sensing for the SRP pin of the BQ27Z846. Install this shunt in the "LO" position for low-side current sensing or "HI" position for high-side current sensing. This shunt must be in the same position on both J4 and J5 jumpers.
  5. J5 - Current Sense Resistor Negative Input (SRN): This jumper selects high-side or low-side current sensing for the SRN pin of the BQ27Z846. Install this shunt in the "LO" position for low-side current sensing or "HI" position for high-side current sensing. This shunt must be in the same position on both J4 and J5 jumpers.
  6. J6 – External Temperature Sensor Connection: This terminal block connects one lead of an external temperature sensor to the TS pin of the BQ27Z846 and the other lead to BAT- (GND). An external temperature sensor must be present for the gauge to report an accurate temperature if the gauge is configured for an external temperature measurement. Refer to the BQ27Z846 Technical Reference Manual for directions on how to configure the BQ27Z846 for an external temperature sensor.
  7. J11 – I2C Header Connection: This connector is used for I2C communication with the BQ27Z846 and is used to interface with the EV2400.