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User's Guide

SBOU074A–January 2009–Revised February 2010

INA219 Evaluation Module

This user’s guide describes the characteristics, operation, and use of the INA219 evaluation module

(EVM). It covers all pertinent areas involved to properly use this EVM board. This document includes the

physical printed circuit board layout, schematic diagrams, and circuit descriptions.

Contents

1 Overview ..................................................................................................................... 2

2 System Setup ................................................................................................................ 4

3 INA219EVM Hardware Setup ............................................................................................. 7

4 INA219 Software Overview .............................................................................................. 14

5 Bill of Materials ............................................................................................................. 20

List of Figures

1 Hardware Included with the INA219EVM................................................................................ 2

2 INA219EVM Hardware Setup ............................................................................................. 4

3 INA219_Test_Board Block Diagram...................................................................................... 4

4 INA219_Test_Board Schematic........................................................................................... 5

5 USB_DIG_Platform Theory of Operation ................................................................................ 7

6 Typical Hardware Connections............................................................................................ 8

7 Connecting Power to the EVM ............................................................................................ 9

8 Connecting the USB Cable............................................................................................... 10

9 INA219EVM Default Jumper Settings .................................................................................. 11

10 INA219EVM Software—Functioning Properly ......................................................................... 15

11 INA219EVM Software—No Communication with the USB DIG Platform .......................................... 16

12 INA219EVM Software—No Communication with the USB DIG Platform and INA219........................... 17

13 EVM Controls Drop-Down Menu ........................................................................................ 19

14 Current Software Revision ............................................................................................... 19

List of Tables

1 Signal Definition of J1 (25-Pin Male DSUB) on INA219_Test_Board................................................ 6

2 INA219_Test_Board Jumper Functions ................................................................................ 11

3 USB DIG Platform Jumper Settings..................................................................................... 12

4 Power-Supply Jumper Configuration #1................................................................................ 13

5 Power-Supply Jumper Configuration #2................................................................................ 13

6 INA219_Test_Board Parts List .......................................................................................... 20

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SBOU074A–January 2009–Revised February 2010 INA219 Evaluation Module

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Strany 1 - INA219 Evaluation Module

User's GuideSBOU074A–January 2009–Revised February 2010INA219 Evaluation ModuleThis user’s guide describes the characteristics, operation, and us

Strany 2 - 1.1 INA219EVM Hardware

INA219EVM Hardware Setupwww.ti.com3.5 Connecting the USB Cable to the INA219EVMFigure 8 shows the typical response to connecting the USB DIG platform

Strany 3 - Overview

www.ti.comINA219EVM Hardware Setup3.6 INA219 Jumper SettingsFigure 9 shows the default jumpers configuration for the INA219EVM. In general, the jumper

Strany 4 - 2 System Setup

INA219EVM Hardware Setupwww.ti.comTable 3 indicates the function and default position of the USB-DIG-Platform jumpers. For mostapplications, the defau

Strany 5 - System Setup

www.ti.comINA219EVM Hardware SetupTable 4. Power-Supply Jumper Configuration #1Mode Jumper CommentExternal Power—5V JUMP17 = BUS (not used) In this mo

Strany 6

INA219 Software Overviewwww.ti.com3.7 Connecting External Power to the INA219EVMThe INA219 power supply (VS) operates over the range of 3V to 5.5V (se

Strany 7 - 3 INA219EVM Hardware Setup

www.ti.comINA219 Software Overview4.2 INA219EVM Software InstallFollow these steps to install the INA219EVM software:Step 1. Software can be downloade

Strany 8 - 3.3 Connecting the Hardware

INA219 Software Overviewwww.ti.comFigure 11 shows an error that pops up if the computer cannot communicate with the EVM. If you receivethis error, fir

Strany 9 - 3.4 Connecting Power

www.ti.comINA219 Software OverviewFigure 12 shows an error that occurs if the INA219_Test_Board is not communicating with the USB DIGPlatform. If you

Strany 10 - INA219EVM Hardware Setup

INA219 Software Overviewwww.ti.com4.4 Using the INA219 SoftwareThe INA219EVM software has six different tabs that allow you to access different featur

Strany 11 - 3.6 INA219 Jumper Settings

www.ti.comINA219 Software Overview4.4.7 EVM Controls Pull-Down MenuThe INA219 Configuration (that is, the register settings) can be saved or loaded us

Strany 12

Overviewwww.ti.com1 OverviewThis document provides the information needed to set up and operate the INA219EVM evaluation module,a test platform for th

Strany 13

Bill of Materialswww.ti.com5 Bill of MaterialsTable 6 shows the parts list for the INA219_Test_Board.Table 6. INA219_Test_Board Parts ListNo. Quantity

Strany 14 - 4 INA219 Software Overview

www.ti.comRevision HistoryRevision HistoryChanges from Original (January, 2009) to A Revision ...

Strany 15 - INA219 Software Overview

Evaluation Board/Kit Important NoticeTexas Instruments (TI) provides the enclosed product(s) under the following conditions:This evaluation board/kit

Strany 16

IMPORTANT NOTICETexas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improveme

Strany 17

www.ti.comOverviewThe complete kit includes the following items:• INA219 test PCB• USB DIG platform PCB• USB cable• +6V power supply• CD-ROM containin

Strany 18 - 4.4 Using the INA219 Software

USBDIGPlatformINA219TestBoardEVMPowerSystemonwhichwewillmeasureShuntCurrent,BusVoltage,andPowerSystemPowerShuntResistorSystemLoadINA219V S

Strany 19

www.ti.comSystem SetupFigure 4 illustrates the system setup for the INA219_Test_Board schematic. D1 is an LED that indicateswhether the INA219 Test Bo

Strany 20 - 5 Bill of Materials

System Setupwww.ti.com2.2 Signal Definitions of J1 (25-Pin Male DSUB)Table 1 lists the different signals connected to J1 on the INA219_Test_Board. Thi

Strany 21 - Revision History

USBDIGEVMExternalPowerUSBConnectionfromComputerV5VUSBAdjustableRegulatorPowerSwitching3.3VRegulatorBuffersandLatchesTUSB32108052 CwithUSBInterf

Strany 22 - EVM Warnings and Restrictions

INA219EVM Hardware Setupwww.ti.com3.2 Typical Hardware ConnectionsThe INA219EVM hardware setup involves connecting the two PCBs of the EVM together, a

Strany 23 - IMPORTANT NOTICE

www.ti.comINA219EVM Hardware Setup3.4 Connecting PowerAfter the two parts of the INA219 EVM are connected, as shown in Figure 7, connect the power to