SLUUC37C july   2019  – august 2023 BQ75614-Q1 , BQ79616 , BQ79616-Q1 , BQ79656-Q1

 

  1.   1
  2.   BQ79616-Q1 and BQ75614-Q1 Evaluation Modules
  3.   Trademarks
  4.   General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  5. 1 General Description
    1. 1.1 Key Features
    2. 1.2 Key Electrical Parameters
  6. 2 Theory of Operation - Stackable BQ79616EVM
    1. 2.1 Single Board
    2. 2.2 Stacked Systems
    3. 2.3 Configuring the BQ79616-Q1 EVM to be used for Lower Cell Count Applications
  7. 3 Theory of Operation - Standalone BQ75614EVM
  8. 4 Connectors
    1. 4.1 Primary Input and Output Connectors
      1. 4.1.1 Jumper Placements
      2. 4.1.2 Battery Connector
      3. 4.1.3 Host Interface
      4. 4.1.4 GPIO or Thermistor Inputs
      5. 4.1.5 High-Side and Low-Side Communications
  9. 5 Quick Start Guide
    1. 5.1 Required Devices for using the Example Code
    2. 5.2 Power Connections
      1. 5.2.1 On-Board Resistor Ladder - Power Supply
      2. 5.2.2 Using Actual Battery Cells
    3. 5.3 Connecting the EVM to TMS570 LaunchPad
    4. 5.4 Stacking BQ79616EVMs
    5. 5.5 Software
    6. 5.6 GUI
      1. 5.6.1 GUI UART Connection
  10. 6 Physical Dimensions
    1. 6.1 Board Dimensions
    2. 6.2 Board Mounting
  11. 7 BQ79616EVM Schematic, Assembly, Layout, and BOM
    1. 7.1 Schematic
    2. 7.2 Assembly
    3. 7.3 Layout
    4. 7.4 BQ79616EVM-021 Bill of Materials (BOM)
  12. 8 BQ75614EVM Schematic, Assembly, Layout, and BOM
    1. 8.1 Schematic
    2. 8.2 Assembly
    3. 8.3 Layout
    4. 8.4 BQ75614EVM Bill of Materials (BOM)
  13. 9 BQ79656EVM Schematic, Assembly, Layout, and BOM
    1. 9.1 Schematic
    2. 9.2 Assembly
    3. 9.3 Layout
    4. 9.4 BQ79656EVM Bill of Materials (BOM)
  14. 10Revision History

4.1.4 GPIO or Thermistor Inputs

There are 8 GPIO pins, which can either be floated, connected to a thermistor and 10k pullup, or forced to certain voltage for a measurement. This can be determined by using the J4 header as shown below. Insert a shunt from pins 1 and 2 to connect GPIO1 to the thermistor, pins 3 and 4 to connect GPIO2 and so on for the other GPIOs. Jumper J5 must also be connected to pull the GPIOs up to the TSREF reference voltage for ratiometric NTC measurements.

GUID-1321FFEF-A10C-4933-9621-1039E46450BA-low.jpgFigure 4-3 Sullins Connector Solutions PEC08DAAN (Reference Image Only)
Table 4-5 Connector Information
DesignatorManufacturerPart NumberMating Connector
J4Sullins Connector SolutionsManufacturer: PEC08DAANN/A
Table 4-6 Pin Description - J4
Pin Name Comments
1 GPIO1 GPIO1 Pin of BQ79616-Q1 or BQ75614-Q1
2 GPIO1_R Connection for GPIO1 to 10k pullup and thermistor
3 GPIO2 GPIO2 Pin of BQ79616-Q1 or BQ75614-Q1
4 GPIO2_R Connection for GPIO2 to 10k pullup and thermistor
5 GPIO3 GPIO3 Pin of BQ79616-Q1 or BQ75614-Q1
6 GPIO3_R Connection for GPIO3 to 10k pullup and thermistor
7 GPIO4 GPIO4 Pin of BQ79616-Q1 or BQ75614-Q1
8 GPIO4_R Connection for GPIO4 to 10k pullup and thermistor
9 GPIO5 GPIO5 Pin of BQ79616-Q1 or BQ75614-Q1
10 GPIO5_R Connection for GPIO5 to 10k pullup and thermistor
11 GPIO6 GPIO6 Pin of BQ79616-Q1 or BQ75614-Q1
12 GPIO6_R Connection for GPIO6 to 10k pullup and thermistor
13 GPIO7 GPIO7 Pin of BQ79616-Q1 or BQ75614-Q1
14 GPIO7_R Connection for GPIO7 to 10k pullup and thermistor
15 GPIO8 GPIO8 Pin of BQ79616-Q1 or BQ75614-Q1
16 GPIO8_R Connection for GPIO8 to 10k pullup and thermistor