SBOU074E january   2009  – july 2023 INA219

 

  1.   1
  2.   INA219 Evaluation Module
  3.   Trademarks
  4. 1Overview
    1. 1.1 INA219EVM 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 INA219_Test_Board Hardware
    2. 2.2 Signal Definitions of J1 (25-Pin Male DSUB)
    3. 2.3 Theory of Operation For SM-USB-DIG Platform
  6. 3INA219EVM (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 the USB Cable to the INA219EVM
    5. 3.5 INA219 Jumper Settings
    6. 3.6 Connecting External Power to the INA219EVM
    7. 3.7 Connecting External Signals to the INA219EVM
  7. 4INA219 Software Overview
    1. 4.1 Operating Systems for INA219 Software
    2. 4.2 INA219EVM Software Install
    3. 4.3 Starting the INA219EVM Software
    4. 4.4 Using the INA219 Software
      1. 4.4.1 Overview Tab
      2. 4.4.2 Config Tab
      3. 4.4.3 Calibration Tab
      4. 4.4.4 Scaling Tab
      5. 4.4.5 Graph Tab
      6. 4.4.6 Registers Tab
      7. 4.4.7 EVM Controls Pull-Down Menu
      8. 4.4.8 Software Revision
  8. 5Bill of Materials
  9. 6Revision History

2.1 Theory of Operation for INA219_Test_Board Hardware

Figure 2-2 shows a block diagram of the INA219_Test_Board. The printed circuit board (PCB) provides connections to the I2C and general-purpose input and outputs (GPIO) on the SM-USB-DIG Platform board. The PCB also provides connection points for external connections of the shunt voltage, bus voltage, and GND.

GUID-ED9012F4-4C83-4254-B10E-E3181B28F8E5-low.gifFigure 2-2 INA219_Test_Board Block Diagram

Figure 2-3 shows the system setup for the INA219_Test_Board schematic. D1 is an LED that indicates whether the INA219 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-68880CEB-8666-401A-AACA-1476E27F5C57-low.pngFigure 2-3 INA219_Test_Board Schematic