SBOU113A June   2011  – January 2023

 

  1.   INA226EVM Rev A Model User's Guide and Software Tutorial
  2. 1Trademarks
  3. 2Overview
    1. 2.1 INA226EVM Kit Contents
    2. 2.2 Related Documentation from Texas Instruments
  4. 3INA226EVM Hardware Setup
    1. 3.1 Theory of Operation for INA226 Hardware
    2. 3.2 Signal Definitions of H1 (10-Pin Connector Socket)
      1. 3.2.1 Theory of Operation for SM-USB-DIG Platform
  5. 4INA226EVM Hardware
    1. 4.1 Electrostatic Discharge Warning
    2. 4.2 Connecting the Hardware
    3. 4.3 Connecting Power
    4. 4.4 Connecting the USB Cable to the SM-USB-DIG Platform
    5. 4.5 INA226EVM Default Jumper Settings
    6. 4.6 INA226EVM Features
      1. 4.6.1 J2: I2C VS Control Setting
      2. 4.6.2 J3/J4: I2C Address Hardware Setting (A0)
      3. 4.6.3 J5/J6: I2C Address Hardware Setting (A1)
      4. 4.6.4 External I2C Lines and Terminal Block T1
      5. 4.6.5 VIN+/VIN– Input Filter (R1, R2, and C1)
      6. 4.6.6 Shunt Monitor Configuration and Terminal Blocks T3 and T4
  6. 5INA226EVM Software Setup
    1. 5.1 Hardware Requirements
    2. 5.2 Software Installation
  7. 6INA226EVM Software Overview
    1. 6.1 Starting the INA226EVM Software
    2. 6.2 Configuring the INA226EVM Software
      1. 6.2.1 I2C Address Selection
      2. 6.2.2 Configure Operating Mode
      3. 6.2.3 Set Conversion Times
      4. 6.2.4 Set Configuration Register
      5. 6.2.5 Configuring the Alert Pin
    3. 6.3 Using the INA226EVM Software
      1. 6.3.1 INA226 Bus Voltage, Shunt Voltage, Current, and Power Reading Bar
      2. 6.3.2 Calculation and Theory of Operation
      3. 6.3.3 Register Tab
      4. 6.3.4 Graph Tab
      5. 6.3.5 Auto-Write and the Supply Voltage
  8. 7INA226EVM Documentation
    1. 7.1 Schematic
    2. 7.2 PCB Layout
    3. 7.3 Bill of Materials
  9. 8Revision History

2 Overview

The INA226 is a high- or low-side current sensor and power monitor with an I2C interface. The INA226 monitors both current and supply voltage, with programmable conversion times and averaging modes. The INA226EVM is a platform for evaluating the performance of the INA226 under various signal, shunt, and supply conditions.

This document gives a general overview of the INA226EVM, and provides a general description of the features and functions to consider while using this evaluation module.