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Texas Instruments INA209 User Manual Download Page 12

INA209EVM Hardware Setup

www.ti.com

3.4

Connecting Power

Connect the two INA209EVM PCBs prior to connecting a power source, as shown in

Figure 8

. Always

connect power before connecting the USB cable. If the USB cable is connected before the power is
supplied, the computer will attempt to communicate with an unpowered device, and the device will not be
able to respond.

Figure 8. Connecting Power to the EVM

12

INA209 Evaluation Module

SBOU055A – February 2008 – Revised February 2010

Submit Documentation Feedback

Copyright © 2008–2010, Texas Instruments Incorporated

Summary of Contents for INA209

Page 1: ...Schematic 6 5 Theory of Operation For the USB Dig Platform 9 6 Typical Hardware Connections 10 7 Connecting the Two EVM PCBs 11 8 Connecting Power to the EVM 12 9 Connecting the USB Cable 13 10 Defau...

Page 2: ...Board and the second board contains the INA209 as well as support and configuration circuitry NOTE Much of the information contained in this document is also contained in the QuickStart Video which is...

Page 3: ...Application Team at precisionamps list ti com Include INA209EVM as the subject heading 1 4 Information About Cautions and Warnings This document contains caution statements CAUTION This is an example...

Page 4: ...INA209 test board Connectors on the INA209 test board allow for connection to the system that will be monitored by the user Figure 2 Hardware Setup for the INA209EVM Minimim PC operating requirements...

Page 5: ...oard Hardware Figure 3 shows the block diagram of the INA209 test board The INA209 test board functionality is relatively simple It provides connections to the I2 C interface and general purpose input...

Page 6: ...l signals for example Warning Critical GPIO etc Jumpers JMP1 through JMP8 allow the configuration of A0 and A1 Connector T1 allows the connection of shunt and bus voltages Figure 4 INA209 Test Board S...

Page 7: ...st Board J1 Pin Signal Used On This EVM INA209 Pin 1 DAC A No 2 DAC B No 3 DAC C No 4 DAC D No 5 ADS1 No 6 ADS1 No 7 ADS2 No 8 ADS2 No 9 I2C_SCK No 10 I2C_SDA2 No 11 ONE_WIRE No 12 I2C_SCK_ISO Yes SCL...

Page 8: ...in Signal Used On This EVM INA209 Pin 1 NC No 2 CTRL1 Yes Convert 3 CTRL2 Yes GPIO 4 CTRL3 No 5 CTRL4 No 6 CTRL5 No 7 CTRL6 No 8 CTRL7 No 9 CTRL8 No 10 MEAS1 Yes Warning 11 MEAS2 Yes GPIO 12 MEAS3 Yes...

Page 9: ...peration For the USB Dig Platform Figure 5 shows the block diagram for the USB Dig platform This platform is a general purpose data acquisition system that is used on several different Texas Instrumen...

Page 10: ...and handling the EVM including the use of a grounded wrist strap at an approved ESD workstation CAUTION Failure to observe ESD handling procedures may result in damage to EVM components 3 2 Typical Ha...

Page 11: ...the D SUB connectors as shown in Figure 7 Make sure that the two connectors are completely socketed together loose connections may cause intermittent EVM operation Figure 7 Connecting the Two EVM PCBs...

Page 12: ...ting the USB cable If the USB cable is connected before the power is supplied the computer will attempt to communicate with an unpowered device and the device will not be able to respond Figure 8 Conn...

Page 13: ...SB Human Interface Device This pop up indicates that the device is ready to be used The USB Dig platform uses the Human Interface Device Drivers that are part of the Microsoft Windows operating system...

Page 14: ...ard Table 3 INA209 Test Board Jumper Function Jumper Default Purpose A0 address select input These jumpers determine where the JMP1 JMP4 JMP1 address select pin is connected This setting connects A0 t...

Page 15: ...3 EE ON VDUT position In the Vs_Ext position the power is connected externally This sets the address for the USB board The only reason to JUMP4 L change from the default is if multiple boards are bein...

Page 16: ...lutely critical that the mode supply voltage does not exceed 5 5V in this mode The supply is directly applied to devices with 5 5V absolute maximum ratings This mode of operation is useful when a devi...

Page 17: ...or more details 4 INA209 Software Overview This section explains how to install and use the INA209 software 4 1 Operating Systems for the INA209 Software The INA209 software has been tested on Windows...

Page 18: ...tart select All Programs then select the INA209EVM program Figure 11 shows the software display if the EVM is functioning properly Figure 11 INA209EVM Software Functioning Properly 18 INA209 Evaluatio...

Page 19: ...will hear the distinctive sound that you expect when a USB device is properly connected to a PC with the Windows operating system Figure 12 INA209EVM Software No Communication With the USB Dig Platfor...

Page 20: ...face that allows users to develop a better understanding of the INA209 Figure 13 INA209EVM Software No Communication Between the USB Dig Platform and the INA209 4 4 1 Software Overview Tab This tab ha...

Page 21: ...ltage The detailed mathematics behind this calibration feature are given in the INA209 data sheet section Calibration Register Scaling Also this feature is explained in a step by step manner in the Qu...

Page 22: ...to be enabled or disabled 4 4 8 Scaling Overview Tab This tab allows you to see how the mathematics work in the INA209 Specifically this tab shows how the current and power values are computed using...

Page 23: ...into is a simple text file and can be viewed with any text editor Figure 14 EVM Controls Pull Down Menu 4 6 Help Pull Down Menu The About feature can be used to check the current revision This documen...

Page 24: ...ith threaded AMP Tyco 1 DSUB25F J2 5747846 4 inserts and board locks Electronics 8 JUMP2 Cut to Size JMP1 JMP8 Conn Header 0 100 36pos 18 jumpers strip 3M ESD 929647 09 36 I 1 JUMP3 Cut to Size JMP9 C...

Page 25: ...4 15 Added Table 5 and Table 6 16 Added Section 3 7 17 Added Section 3 8 17 NOTE Page numbers for previous revisions may differ from page numbers in the current version 25 SBOU055A February 2008 Revis...

Page 26: ...This notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI application engineer or...

Page 27: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments INA209EVM...

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