SBOU302A June   2023  – December 2023 INA740A , INA740B , INA745A , INA745B , INA780A , INA780B

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  6. 2Hardware
    1. 2.1 Quick Start Setup
    2. 2.2 EVM Operation
      1. 2.2.1 Current Sensing Operation
        1. 2.2.1.1 Detailed Setup
    3. 2.3 Circuitry
      1. 2.3.1 Current Sensing IC
      2. 2.3.2 Input Signal Path
      3. 2.3.3 Digital Circuitry
        1. 2.3.3.1 I2C
    4.     General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  7. 3Software
    1. 3.1 Setup
      1. 3.1.1 Driver Installation
      2. 3.1.2 Firmware
        1. 3.1.2.1 Firmware Debug
      3. 3.1.3 GUI Setup and Connection
        1. 3.1.3.1 Initial Setup
        2. 3.1.3.2 GUI to EVM Connection
    2. 3.2 GUI Operation
      1. 3.2.1 Homepage Tab
      2. 3.2.2 Registers Tab
      3. 3.2.3 Results Data Tab
    3. 3.3 Direct EVM USB Communication
      1. 3.3.1 Standard USB Read and Write Operations
      2. 3.3.2 Collect Data Through the USB BULK Channel
  8. 4Hardware Design Files
    1. 4.1 Schematics
      1. 4.1.1 SENS108 (INA740AEVM, INA740BEVM, INA741EVM)
      2. 4.1.2 SENS109 (INA745AEVM, INA745BEVM, INA746EVM)
      3. 4.1.3 SENS119 (INA780AEVM, INA780BEVM, INA781EVM)
    2. 4.2 PCB Layout
      1. 4.2.1 SENS108 (INA740AEVM, INA740BEVM, INA741EVM)
      2. 4.2.2 SENS109 (INA745AEVM, INA745BEVM, INA746EVM)
      3. 4.2.3 SENS119 (INA780AEVM, INA780BEVM, INA781EVM)
    3. 4.3 Bill of Materials
      1. 4.3.1 SENS108 (INA740-INA741EVM), SENS109 (INA745-INA746EVM), SENS119 (INA780-INA781EVM)
  9. 5Additional Information
    1. 5.1 Trademarks
  10. 6Related Documentation
  11. 7Revision History

2 Hardware

This EVM is an easy-to-use platform for evaluating the main features and performance of the INA740, INA741, INA745, INA746, INA780, or INA781. The INA780-INA781EVM supports measurable, continuous current levels up to 50-A over temperature, while the INA740-INA741EVM and INA745-INA746EVM support 25-A over temperature. The measurable full-scale current range of these devices is a function of layout, ambient temperature, and current duration. Please refer to the data sheet for more information. EVM software includes a graphical user interface (GUI) used to read and write device registers as well as view and save results data.

The EVM is intended to provide basic functional evaluation of the devices. The layout is not intended to be a model for the target circuit, nor is the layout laid out for electromagnetic compatibility (EMC) testing. The EVM consists of two printed-circuit boards (PCBs). The larger PCB is referred to as the EVM. The smaller PCB is referred to as the SCB Controller, and is used to interface the EVM with the GUI.