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Texas Instruments INA220EVM Скачать руководство пользователя страница 9

INA220EVM Hardware Setup

9

SBOU079B – July 2009 – Revised May 2016

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Copyright © 2009–2016, Texas Instruments Incorporated

INA220 Evaluation Module

3.3

Connecting the Hardware

To connect the two PCBs of the INA220EVM together, gently push on both sides of the D-SUB connectors
(as shown in

). Make sure that the two connectors are completely pushed together; loose

connections may cause intermittent operation.

3.4

Connecting Power

After the two parts of the INA220 EVM are connected, as

illustrates, connect the power to the

EVM. Always connect power before connecting the USB cable. If you connect the USB cable before
connecting the power, the computer will attempt to communicate with an unpowered device that will not be
able to respond.

Figure 7. Connecting Power to the EVM

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Содержание INA220EVM

Страница 1: ...dware Setup 8 4 INA220 Software Overview 14 5 Bill of Materials 20 List of Figures 1 Hardware Included with the INA220EVM 2 2 INA220EVM Hardware Setup 4 3 INA220_Test_Board Block Diagram 4 4 INA220_Te...

Страница 2: ...INA220 current power monitor device The INA220EVM consists of two printed circuit boards PCBs One board the USB DIG Platform generates the digital signals required to communicate with the INA220 which...

Страница 3: ...e under literature number SBOU079 Any letter appended to the literature number corresponds to the document revision that is current at the time of the writing of this document Newer revisions may be a...

Страница 4: ...s software that communicates with the USB DIG Platform The USB DIG Platform generates the analog and digital signals used to communicate with the INA220_Test_Board Connectors on the INA220_Test_Board...

Страница 5: ...2 1 2 T3 T_STRIP2 GND GND 1 2 3 JMP5 1 2 3 JMP4 Vs I2C_SDA_ISO I2C_SCK_ISO 1 2 3 JMP3 1 2 3 JMP2 DAC_A DAC_B DAC_A and DAC_B used for Test with USB DAQ Platform only Vin 10 Vin 9 Gnd 7 VS 6 SCL 5 SDA...

Страница 6: ...on 3 NC No connection 4 NC No connection 5 NC No connection 6 NC No connection 7 NC No connection 8 NC No connection 9 I2C_SCK No connection 10 I2C_SDA2 No connection 11 NC No connection 12 I2C_SCK_IS...

Страница 7: ...are included in a separate document available for download at www ti com The block diagram shown in Figure 5 gives a brief overview of the platform The primary control device on the USB DIG Platform i...

Страница 8: ...M are susceptible to damage by electrostatic discharge ESD Customers are advised to observe proper ESD handling precautions when unpacking and handling the EVM including the use of a grounded wrist st...

Страница 9: ...as shown in Figure 7 Make sure that the two connectors are completely pushed together loose connections may cause intermittent operation 3 4 Connecting Power After the two parts of the INA220 EVM are...

Страница 10: ...ing the USB cable Typically the computer will respond with a Found New Hardware USB Device pop up The pop up typically changes to Found New Hardware USB Human Interface Device This pop up indicates th...

Страница 11: ...set a specific I2 C address Figure 9 INA220EVM Default Jumper Settings Table 2 explains the function of the jumpers on the INA220_Test_Board Table 2 INA220_Test_Board Jumper Functions Jumper Default...

Страница 12: ...load the USB DIG Platform firmware upon power up or reset The EE Off position is used for development for development or firmware updates JUMP4 JUMP5 L L This jumper sets the address for the USB boar...

Страница 13: ...JUMP6 5V not used JUMP7 REG ratiometric mode In this mode all the digital I Os are referenced to the supply that is attached to either J5 on USB DIG board or T3 CAUTION It is absolutely critical that...

Страница 14: ...t power to the INA220 power supply VS using an external power supply In this case connect power to the T3 terminal block and set JMP1 to the Vs_EXT positon The INA220 power supply VS operates over the...

Страница 15: ...ick the file to start the installation process Step 3 Follow the on screen prompts to install the software Step 4 To remove the application use the Windows Control Panel utility Add Remove Software Th...

Страница 16: ...le is properly connected This error can also occur if you connect the USB cable before the USB DIG Platform 9V power source A second possible reason for this problem is that there may be a problem wit...

Страница 17: ...or that occurs if the INA220_Test_Board is not communicating with the USB DIG Platform If you see this error check the connectors between the two boards make sure the 25 pin connectors are completely...

Страница 18: ...A D converter mode This control determines how the converters work The most commonly used modes are Shunt and Bus continuous conversion mode This mode causes both converters to run continuously More...

Страница 19: ...the register settings can be saved or loaded using the EVM Controls drop down menu as Figure 13 shows The file that the configuration is saved into is a simple text file and can be viewed with any tex...

Страница 20: ...onal Not Installed C1 0603 1206 Capacitor 7 1 LED D1 Diode LED Ultra Bright Diff 603 Panasonic LNJ208R8ARA 8 1 DSUB25M J1 CONN D SUB PLUG R A 25POS 30GOLD With Threaded Inserts and Board locks AMP Tyc...

Страница 21: ...nt version Changes from A Revision February 2010 to B Revision Page Changed Figure 1 2 Changed list item From 6V power supply To Barrel plug cable assembly in Section 1 1 3 Added new paragraph and NOT...

Страница 22: ...ing the warranty period to the address designated by TI and that are determined by TI not to conform to such warranty If TI elects to repair or replace such EVM TI shall have a reasonable time to repa...

Страница 23: ...transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indic...

Страница 24: ...ified allowable ranges some circuit components may have elevated case temperatures These components include but are not limited to linear regulators switching transistors pass transistors current sens...

Страница 25: ...REMOVAL OR REINSTALLATION ANCILLARY COSTS TO THE PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES RETESTING OUTSIDE COMPUTER TIME LABOR COSTS LOSS OF GOODWILL LOSS OF PROFITS LOSS OF SAVINGS LOSS OF USE L...

Страница 26: ...sponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related inf...

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