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

4.1.2 Battery Connector

The live battery cell connections are made from connector J15. Cell voltage measurements and balancing currents use these connections. Alternatively, the user can simulate cell voltages using the on board resistor ladder across each of the cells, which can be utilized by closing switches S1 and S2 and applying a DC voltage across the VSTACK test point and GND. Short unused channels to the top cell connection in the wiring harness to support fewer than 16 cells. At the minimum, the user must support 6 cells. Additional instructions for the connections for wiring J15 to live battery cells can be found in Figure 7-3.

GUID-7C063826-0D46-4DD9-BB57-8B99FE3957BA-low.pngFigure 4-1 Molex 50-57-9422 (Reference Image Only)
Table 4-1 Connector Information
DesignatorManufacturerPart NumberMating Connector
J15MolexManufacturer:0705550056
Digi-Key: 0705550056-ND		Manufacturer:50-57-9422
Digi-Key:WM2920-ND
Table 4-2 Pin Description
Pin Name Comments
1 CELL0/GND Negative terminal of CELL1, Connected directly to AVSS GND of device
2 CELL16 Positive terminal of CELL16, Direct connection to BAT, LDOIN
3 CELL0 Negative terminal of CELL1, Connected directly to AVSS GND of device
4 CELL0S Negative terminal of CELL1, Actual sense connnection for VC0 path
5 CELL1 Positive terminal of CELL1, negative terminal of CELL2
6 CELL2 Positive terminal of CELL2, negative terminal of CELL3
7 CELL3 Positive terminal of CELL3, negative terminal of CELL4
8 CELL4 Positive terminal of CELL4, negative terminal of CELL5
9 CELL5 Positive terminal of CELL5, negative terminal of CELL6
10 CELL6 Positive terminal of CELL6, negative terminal of CELL7
11 CELL7 Positive terminal of CELL7, negative terminal of CELL8
12 CELL8 Positive terminal of CELL8, negative terminal of CELL9
13 CELL9 Positive terminal of CELL9, negative terminal of CELL10
14 CELL10 Positive terminal of CELL10, negative terminal of CELL11
15 CELL11 Positive terminal of CELL11, negative terminal of CELL12
16 CELL12 Positive terminal of CELL12, negative terminal of CELL13
17 CELL13 Positive terminal of CELL13, negative terminal of CELL14
18 CELL14 Positive terminal of CELL14, negative terminal of CELL15
19 CELL15 Positive terminal of CELL15, negative terminal of CELL16
20 CELL16S Positive terminal of CELL16, actual sense connection to VC16 path
21 CELL16 Positive terminal of CELL16, Direct connection to BAT, LDOIN
22 CELL0/GND Negative terminal of CELL1, Connected directly to AVSS GND of device