SBOU079D july   2009  – july 2023 INA220 , INA220-Q1

 

  1.   1
  2.   INA220 Evaluation Module
  3.   Trademarks
  4. 1Overview
    1. 1.1 INA220EVM Hardware
    2. 1.2 Related Documentation from Texas Instruments
    3. 1.3 Information About Cautions and Warnings
  5. 2System Setup
    1. 2.1 Theory of Operation for INA220_Test_Board Hardware
    2. 2.2 Signal Definitions of J1 (25-Pin Male DSUB)
    3. 2.3 Theory of Operation For USB_DIG_Platform
  6. 3INA220EVM (Rev A) Hardware Setup
    1. 3.1 Electrostatic Discharge Warning
    2. 3.2 Typical Hardware Connections
    3. 3.3 Connecting the Hardware
    4. 3.4 Connecting Power
    5. 3.5 Connecting the USB Cable to the INA220EVM
    6. 3.6 INA220 Jumper Settings
    7. 3.7 Connecting External Power to the INA220EVM
    8. 3.8 Connecting External Signals to the INA220EVM
  7. 4INA220 Software Overview
    1. 4.1 INA220EVM Software Install
    2. 4.2 Starting the INA220EVM Software
    3. 4.3 Using the INA220 Software
      1. 4.3.1 Overview Tab
      2. 4.3.2 Config Tab
      3. 4.3.3 Calibration Tab
      4. 4.3.4 Scaling Tab
      5. 4.3.5 Graph Tab
      6. 4.3.6 Registers Tab
      7. 4.3.7 EVM Controls Pull-Down Menu
      8. 4.3.8 Software Revision
  8. 5Bill of Materials
  9. 6Revision History

2.1 Theory of Operation for INA220_Test_Board Hardware

Figure 2-2 shows a block diagram of the INA220_Test_Board. The printed circuit board (PCB) provides connections to the I2C interface and general-purpose input and outputs (GPIO) on the USB DIG Platform board. The PCB also provides connection points for external connections of the shunt voltage, bus voltage, and GND.

GUID-4A076620-4793-4E3F-818E-8B863659AA01-low.gifFigure 2-2 INA220_Test_Board Block Diagram

Figure 2-3 shows the system setup for the INA220_Test_Board schematic. D1 is an LED that indicates whether the INA220 Test Board is receiving power. Jumpers allow the selection of the power source as well as configuration of A0 and A1. Connector T4 allows the connection of the shunt and bus voltages.

GUID-2AF89D77-7BBB-4053-B9F3-E5B0AD500BB1-low.gifFigure 2-3 INA220_Test_Board Schematic