1. Test Procedure For INA226EVM
4/3/10
Introduction
Verify Hardware
Install Software
Run Test Procedure
Label Passing Units
Ship Passing Units
Conclusion 1

2. Required Order Verify the Required Hardware and Software
Install INA226EVM Software
Verify Hardware
Run INA226EVM Test Procedure
Label Passing Units
Ship Passing Units
Introduction
Verify Hardware
Install Software
Run Test Procedure
Label Passing Units
Ship Passing Units
Conclusion 2

3. Required Hardware and Software
Introduction
Verify Hardware
Install Software
Run Test Procedure
Label Passing Units
Ship Passing Units
Conclusion 3

4. Items provided by Texas Instruments
No.
Item
Qty
Description / Use 1
INA226EVM
Completely built INA226EVM PCB with INA226 part inserted. 2
USB Extender Cable
Connects to USB SM-DIG . 3
USB DIG Platform
Sample of working USB SM-DIG platform used as a digital data acquisition system 4
Software and Documentation Disk
Contains all software and documentation required for the INA226EVM test procedure.
Items provided by Manufacture / Test Vendor 1
PC with windows operating system
For test software. 2
Digital Multimeter
Volt Meter to measure the voltage being supplied to the INA226 Test Board 3
Analog power supply
Supplies power to Rshunt and Rload to test the INA226 4
Resistors
1 47ohm and 1 10kohm standard tolerance resistor.
Introduction
Verify Hardware
Install Software
Run Test Procedure
Label Passing Units
Ship Passing Units
Conclusion 4

5. EVM Installation Procedure
Introduction
Verify Hardware
Install Software
Run Test Procedure
Label Passing Units
Ship Passing Units
Conclusion 5

6. INA226EVM software is on the CD provided by Texas Instruments
Double Click on the setup.exe file to begin installation of the test software
Introduction
Verify Hardware
Install Software
Run Test Procedure
Label Passing Units
Ship Passing Units
Conclusion 6

7. Allow the setup to initialize and click next
Introduction
Verify Hardware
Install Software
Run Test Procedure
Label Passing Units
Ship Passing Units
Conclusion 7

8. Accept both license agreements
Introduction
Verify Hardware
Install Software
Run Test Procedure
Label Passing Units
Ship Passing Units
Conclusion 8

9. Installing …
Press Next on the Start Installation dialog, the program will install, then select Finish
Introduction
Verify Hardware
Install Software
Run Test Procedure
Label Passing Units
Ship Passing Units
Conclusion 9

10. Hardware Setup for Test
Introduction
Verify Hardware
Install Software
Run Test Procedure
Label Passing Units
Ship Passing Units
Conclusion 10

11. Connections for INA226EVM Test
Introduction
Verify Hardware
Install Software
Run Test Procedure
Label Passing Units
Ship Passing Units
Conclusion 11

12. Set Jumpers on Boards 12 Introduction Verify Hardware Install Software
Run Test Procedure
Label Passing Units
Ship Passing Units
Conclusion 12

13. Connect Power and USB Cables
Connect the 10-pin connector to the SM-DIG and PCB
Connect USB extender cable to the board and PC
The first time a USB DIG Board is plugged into your computer you may get a message
Introduction
Verify Hardware
Install Software
Run Test Procedure
Label Passing Units
Ship Passing Units
Conclusion 13

14. Apply INA226EVM Interface Board Power
10k Ω Resistor (RLOAD)
47Ω resistor (RSHUNT)
Shunt Wire from Vin- to GND
Apply 10v power supply voltage to terminal block 3. The high side of the supply should be connected to Vbus and the low side should be connected to GND.
Introduction
Verify Hardware
Install Software
Run Test Procedure
Label Passing Units
Ship Passing Units
Conclusion 14

15. Run Test Procedure 15 Introduction Verify Hardware Install Software
Label Passing Units
Ship Passing Units
Conclusion 15

16. Launch the INA226 software that was recently installed
Launch the INA226 software that was recently installed. The program should look like this:
If it comes up with an error, ensure that the USB SM-DIG is securely plugged in. Also try restarting the program.
Introduction
Verify Hardware
Install Software
Run Test Procedure
Label Passing Units
Ship Passing Units
Conclusion 16

17. Program Setup
Enter in the exact resistance of the Rshunt into the “Resistance” box and hit enter. Also, enter the Max current as “10m” and hit enter.
Enter the value 109 into the calibration register box and hit enter.
Introduction
Verify Hardware
Install Software
Run Test Procedure
Label Passing Units
Ship Passing Units
Conclusion 17

18. Program Evaluation
Select the “Read all Reg” buttons shown to the right. This should update the value at the bottom of the program.
Ensure the values are close to the table below
Channel
Output
Vbus
~10 V
Shunt Voltage
~50mV
Current
~1mA
Power
~10mW
Introduction
Verify Hardware
Install Software
Run Test Procedure
Label Passing Units
Ship Passing Units
Conclusion 18

19. Label Passing Units
If the designated part has passed the tests, label the passing unit with a QC sticker on the bottom of the board as shown below
Introduction
Verify Hardware
Install Software
Run Test Procedure
Label Passing Units
Ship Passing Units
Conclusion 19

20. Tested Device This test is designed to test the Read/Write
capability of the INA226EVM. Once the test
has been passed, the EVM is ready to be shipped.
Introduction
Verify Hardware
Install Software
Run Test Procedure
Label Passing Units
Ship Passing Units
Conclusion 20

21. Thank you for choosing Texas Instruments®
Any questions, comments, or concerns should be directed to your TI representative.
Introduction
Verify Hardware
Install Software
Run Test Procedure
Label Passing Units
Ship Passing Units
Conclusion 21