Texas Instruments INA209 User Manual
Texas Instruments INA209 User Manual

Texas Instruments INA209 User Manual

Evaluation module

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This user's guide describes the characteristics, operation, and use of the INA209 evaluation module
(EVM). It discusses the processes and procedures required to properly use this EVM board. This
document also includes the physical printed circuit board (PCB) layout, schematic diagram, and circuit
descriptions.
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SBOU055A - February 2008 - Revised February 2010
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Copyright © 2008-2010, Texas Instruments Incorporated
SBOU055A - February 2008 - Revised February 2010
INA209 Evaluation Module
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INA209 Evaluation Module
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Summary of Contents for Texas Instruments INA209

  • Page 1: Table Of Contents

    SBOU055A – February 2008 – Revised February 2010 INA209 Evaluation Module This user's guide describes the characteristics, operation, and use of the INA209 evaluation module (EVM). It discusses the processes and procedures required to properly use this EVM board. This document also includes the physical printed circuit board (PCB) layout, schematic diagram, and circuit descriptions.
  • Page 2: Overview

    Related Documentation from Texas Instruments The INA209EVM is an evaluation module that is used to fully evaluate the INA209 current shunt monitor. The INA209 is a mixed-signal current shunt monitor. The INA209EVM consists of two PCBs. One board generates the digital signals (USB DIG Platform) required to communicate with the INA209 (INA209_Test_Board), and the second board contains the INA209, as well as support and configuration circuitry.
  • Page 3 INA209 Product Data Sheet SBOS403 If You Need Assistance If you have questions about the INA209 evaluation module, send an e-mail to the Linear Application Team at precisionamps@list.ti.com. Include INA209EVM as the subject heading. Information About Cautions and Warnings This document contains caution statements.
  • Page 4: System Setup

    INA209EVM. The PC runs software that communicates with the USB Dig platform. The USB Dig platform generates the digital signals used to communicate with the INA209 test board. Connectors on the INA209 test board allow for connection to the system that will be monitored by the user.
  • Page 5: Block Diagram Of The Ina209 Test Board

    Theory of Operation for the INA209 Test Board 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 I C™ interface and general-purpose inputs/outputs (GPIOs) on the USB Dig platform.
  • Page 6: Ina209 Test Board Schematic

    Figure 4 illustrates the system setup for the INA209 test board schematic. LEDs D1 through D6 are used as indicators for many of the digital 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.
  • Page 7 J1 on the INA209 test board. Table 1 also identifies signals connected to pins on J1 that are not used on the INA209 test board. Table 1. Signal Definition of J1 (25-Pin Male DSUB) on the INA209 Test Board J1 Pin...
  • Page 8 J2 on the INA209 test board. Table 2 also identifies signals connected to pins on J2 that are not used on the INA209 test board. Table 2. Signal Definition of J2 (25-Pin Female DSUB) on the INA209 Test Board J1 Pin...
  • Page 9: Theory Of Operation For The Usb Dig Platform

    Theory of Operation 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 Instruments evaluation modules. The block diagram shown in Figure 5 illustrates the general platform outline.
  • Page 10: Ina209Evm Hardware Setup

    A typical INA209EVM hardware setup connects the two EVM PCBs, then supplying power, and connecting an external shunt and load. The external connections may be the real-world system to which the INA209 will be connected. Figure 6 shows the typical hardware connections.
  • Page 11: Connecting The Two Evm Pcbs

    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 SBOU055A – February 2008 – Revised February 2010 INA209 Evaluation Module Submit Documentation Feedback Copyright © 2008–2010, Texas Instruments Incorporated...
  • Page 12: Connecting Power To The Evm

    Figure 8. Connecting Power to the EVM INA209 Evaluation Module SBOU055A – February 2008 – Revised February 2010 Submit Documentation Feedback Copyright © 2008–2010, Texas Instruments Incorporated...
  • Page 13: Connecting The Usb Cable

    Human Interface Drivers by clicking Yes when requested to install drivers. Figure 9. Connecting the USB Cable SBOU055A – February 2008 – Revised February 2010 INA209 Evaluation Module Submit Documentation Feedback Copyright © 2008–2010, Texas Instruments Incorporated...
  • Page 14: Default Jumper Settings

    INA209EVM. In general, the jumper settings of the USB Dig platform do not need to be changed. However, you may want to change some of the jumpers on the INA209 test board to match your specific device configuration (for example, to change the I address).
  • Page 15 J5 or T3 (9V dc). Bus power is 5V from the JUMP2 USB bus. External power is typically used because the USB bus power is noisy. This jumper determines where the INA209 gets its power supply. In the V position, the EVM provides power. The default is the JUMP3 EE ON position.
  • Page 16 (U19, REG101) is used to generate a 3V supply for all digital I/O. JUMP14 = BUS JUMP1 = BUS JUMP2 = BUS JUMP6 = 3V JUMP7 = REG (ratiometric mode, 5V supply) INA209 Evaluation Module SBOU055A – February 2008 – Revised February 2010 Submit Documentation Feedback Copyright © 2008–2010, Texas Instruments Incorporated...
  • Page 17: Ina209 Software Overview

    ) operates over the range of 3V to 5.5V, so be careful to not exceed this range. Connecting External Signals to the INA209EVM The INA209 shunt and bus voltages are applied via terminal block T4. The T4 terminal block is a direct connection to V and V of the INA209.
  • Page 18: Ina209Evm Software-Functioning Properly

    INA209 Software Overview www.ti.com Starting the INA209EVM Software Use the Windows Start menu to start the INA209 software. From Start, select All Programs, then select the INA209EVM program. Figure 11 shows the software display if the EVM is functioning properly.
  • Page 19: Ina209Evm Software-No Communication With The Usb Dig Platform

    Figure 12. INA209EVM Software—No Communication With the USB Dig Platform Figure 13 for an error that will occur if the INA209 test board is not communicating with the USB Dig platform. If you get this error, check the connectors between the two boards; make sure the two 25-pin D-sub connectors are completely pushed together.
  • Page 20: Ina209Evm Software-No Communication Between The Usb Dig Platform And The Ina209

    Using the INA209 Software The INA209EVM software has 10 different tabs that allow you to access different features of the INA209. The first seven tabs were designed for complete configuration of the device by stepping through these tabs in order. Each of these tabs are intended to have an intuitive graphical interface that allows users to develop a better understanding of the INA209.
  • Page 21 Power, Bus Overvoltage, and Bus Undervoltage. If an INA209 reading exceeds the value in a overlimit limit register, the INA209 overlimit will trip. Other options on the warning feature are also set on this tab (for example, the delay, polarity, latch enable, and output enable). See the Over-Limit/Critical Watchdog Registers section of the INA209 data sheet.
  • Page 22 Registers Tab This tab allows reading and editing of all the registers in the INA209. All the previous tabs will affect the register listing. For example, changing the A/D configuration in tab 2 will affect Register 0 in the register list.
  • Page 23: Evm Controls Pull-Down Menu

    INA209 Software Overview www.ti.com EVM Controls Pull-Down Menu The INA209 configuration (such as register settings) can be saved or loaded using the EVM Controls pull-down menu, as shown in Figure 14. The file that the configuration is saved into is a simple text file and can be viewed with any text editor.
  • Page 24: Bill Of Materials

    Bill of Materials www.ti.com Bill of Materials Table 7 shows the parts list for the INA209 test board. Table 7. Parts List for the INA209 Test Board Quantity Value RefDes Description Vendor Part Number 4.02kΩ R5–R10 Resistor, 4.02kΩ, 603 ROHM...
  • Page 25 Section 3.7 ........................• Added Section 3.8 NOTE: Page numbers for previous revisions may differ from page numbers in the current version. SBOU055A – February 2008 – Revised February 2010 Revision History Submit Documentation Feedback Copyright © 2008–2010, Texas Instruments Incorporated...
  • Page 26 Evaluation Board/Kit Important Notice Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards.
  • Page 27 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments INA209EVM...

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