SLUUCC3 february   2021 BQ79631-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4.   General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  5. 1General Description
    1. 1.1 Key Features
      1. 1.1.1 Key Electrical Parameters
  6. 2Theory of Operation
    1. 2.1 Single Board
    2. 2.2 Stacked Systems
  7. 3Connectors
    1. 3.1 Powering the BQ79631EVM
    2. 3.2 Primary Input and Output Connectors
      1. 3.2.1 Jumper Placements
      2. 3.2.2 Host Interface
      3. 3.2.3 High-Side and Low-Side Communications
    3. 3.3 High Voltage Networks
      1. 3.3.1 High Voltage Safety Considerations
      2. 3.3.2 High Voltage Connections
      3. 3.3.3 High Voltage Alternatives
      4. 3.3.4 Switches
      5. 3.3.5 Buffers
      6. 3.3.6 Insulation Detection Network
    4. 3.4 Current Sense
      1. 3.4.1 SRP/SRN
      2. 3.4.2 VCSamp_Out
    5. 3.5 GPIO Connections
  8. 4Quick Start Guide
    1. 4.1 Launch Pad Connection and Example Code
      1. 4.1.1 Required Devices for Using the Example Code
      2. 4.1.2 Power Connections
      3. 4.1.3 Connecting the EVM to the TMS570 LaunchPad
      4. 4.1.4 Software
    2. 4.2 USB2ANY Connection with GUI
      1. 4.2.1 GUI
      2. 4.2.2 GUI UART Connection
  9. 5Physical Dimensions
    1. 5.1 Board Dimensions
  10. 6BQ79631-Q1 EVM Schematic, Assembly, Layout, and BOM
    1. 6.1 Schematics
    2. 6.2 Layout
    3. 6.3 Bill of Materials

2.2 Stacked Systems

A possibility is to use the BQ79631EVM in a system of other BQ devices. If the user wishes to test the BQ79631EVM in a system of other BQ79631EVMs, then this is possible through the use of the daisy chain communications bus. If using both the BQ79631EVM and a stack of BQ79616EVMs simultaneously, then TI recommends to configure the BQ79631EVM as the bridge device by connecting to the host microcontroller through the UART host interface and then using the daisy chain communications bus to connect the BQ79631EVM to the stack of BQ79616EVM devices. This configuration is shown in the figure below.

GUID-20200717-CA0I-TGPR-HQQR-L4LVM68XQ6HL-low.png Figure 2-2 BQ79631EVM Bridge Device Configuration

If using the BQ79631EVM in a system with the BQ79600EVM, then TI recommends to configure the BQ79600EVM as the bridge device and the BQ79631EVM as a stack device.