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TMP112 Documentation

6

TMP112 Documentation

This section contains the complete bill of materials and PCB layout for the TMP112EVM.

NOTE:

These board layouts are not to scale. These image are intended to show how the board is

laid out and are not intended to be used for manufacturing TMP112EVM PCBs.

6.1

TMP112EVM Board Schematic

shows the schematic for the TMP112EVM board.

Figure 24. TMP112EVM Board Schematic

18

TMP112EVM Evaluation Board and Software Tutorial

SBOU144 – August 2014

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Copyright © 2014, Texas Instruments Incorporated

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Summary of Contents for TMP112EVM

Page 1: ... 2 TMP112EVM Hardware Setup 4 3 TMP112EVM Board Block Diagram 5 4 SM USB DIG Platform Block Diagram 6 5 Connecting SM USB DIG Platform 7 6 Confirmation of SM USB DIG Platform Driver Installation 7 7 10 Pin Ribbon Cable Extender 8 8 TMP112EVM Software Installation 9 9 TMP112EVM License Agreements 10 10 TMP112EVM Software Interface 11 11 TMP112EVM Software Communication Error with the SM USB DIG Pla...

Page 2: ... module 1 1 TMP112EVM Kit Contents Table 1 summarizes the contents of the TMP112EVM kit Figure 1 illustrates all of the included hardware Contact the Texas Instruments Product Information Center nearest you if any component is missing TI highly recommends that you also check the TMP112 product folder on the TI web site at www ti com to verify that you have the latest versions of the related softwa...

Page 3: ...i com Overview Figure 1 Hardware Included with TMP112EVM Kit 3 SBOU144 August 2014 TMP112EVM Evaluation Board and Software Tutorial Submit Documentation Feedback Copyright 2014 Texas Instruments Incorporated ...

Page 4: ...ature number Table 2 Related Documentation Document Literature Number TMP112 product data sheet SBOS397 SM USB DIG platform user guide SBOU098 2 TMP112EVM Hardware Setup Figure 2 shows the overall system setup for the TMP112EVM The computer runs software that communicates with the SM USB DIG platform The SM USB DIG platform generates the digital signals used to communicate with the TMP112 test boa...

Page 5: ...12EVM uses only the necessary I2 C communication lines pins 1 and 3 and the VDUT and GND pins 6 and 8 respectively to issue commands to the TMP112 sensors Table 3 Signal Definition of H1 on the TMP112EVM Board Pin on U1 Signal Description 1 I2C_SCL I2 C clock signal SCL 2 CTRL MEAS4 GPIO control output or measure input 3 I2C_SDA1 I2 C data signal SDA 4 CTRL MEAS5 GPIO control output or measure inp...

Page 6: ...nload at www ti com The block diagram shown in Figure 4 gives a brief overview of the platform The primary control device on the SM USB DIG platform is the TUSB3210 Figure 4 SM USB DIG Platform Block Diagram 3 TMP112EVM Hardware The TMP112EVM hardware overview involves connecting the two PCBs of the EVM together connecting the USB cable applying power and setting the jumpers This section presents ...

Page 7: ... window then changes to Found New Hardware USB Human Interface Device This pop up indicates that the device is ready to be used The SM USB DIG platform uses the human interface device drivers that are part of the Microsoft Windows operating system Figure 5 Connecting SM USB DIG Platform In some cases the Windows Add Hardware Wizard appears If this prompt pops up allow the system device manager to ...

Page 8: ... DIG 3 4 2 10 Pin Connector Ribbon Extender Optional The TMP112EVM kit ships with an optional ribbon cable for extending the connection between the SM USB DIG and the PCB This extension cable can be useful if high temperature tests must be run on the test board because the SM USB DIG is not rated for high temperatures To connect the ribbon cable attach the cable to the EVM and SM USB DIG as shown ...

Page 9: ...tware to a computer locate the compressed file TMP112EVM zip and open it using WinZIP or a similar file compression program extract the TMP112EVM files into a specific TMP112EVM folder for example C TMP112EVM on your hard drive When the files are extracted navigate to the TMP112EVM folder you created on the hard drive Locate the setup exe file and execute it to start the installation The TMP112 so...

Page 10: ...n two license agreements are presented that must be accepted as shown in Figure 9 After accepting the Texas Instruments and National Instruments license agreements the progress bar opens and shows the installation of the software When the installation process is completed click Finish Figure 9 TMP112EVM License Agreements 10 TMP112EVM Evaluation Board and Software Tutorial SBOU144 August 2014 Subm...

Page 11: ...ter cannot communicate with the SM USB DIG platform If you receive this error message first check that the USB extension cable is properly connected to both the computer USB port and to the SM USB DIG platform Another possible source for this error is a problem with the computer USB human interface device driver Make sure that the device is recognized when the USB cable is plugged in recognition i...

Page 12: ...g correctly the user then sees the temperature change over time in the TMP112 Temperature box By toggling the Auto Read button the temperature is automatically refreshed at the rate specified in the Conversion Rate pull down menu The conversion rate can only be changed when Auto Read is turned off Figure 12 TMP112 Reading from Registers 12 TMP112EVM Evaluation Board and Software Tutorial SBOU144 A...

Page 13: ...hen adjusting large numbers of the configuration registers on the left side of the panel The auto write feature automatically makes changes to the configuration register whenever one of the configuration settings on the left changes as shown in Figure 13 Figure 13 TMP112 Writing to Registers 13 SBOU144 August 2014 TMP112EVM Evaluation Board and Software Tutorial Submit Documentation Feedback Copyr...

Page 14: ...ading the Temperature Gauge 5 2 4 Polarity Alert Pin The polarity drop down selection box in the Configuration section allows the user to toggle how the Alert pin behaves when triggered When the polarity box is set to active low as shown in Figure 15 the LED on the TMP112EVM board lights up when triggered and functions as a ground source When the polarity box is set to active high the LED on the T...

Page 15: ... 5 2 7 Thermostat Mode Thermostat mode in the Configuration box allows the user to designate how the TMP112 Alert pin behaves when the temperature register exceeds the THIGH register When the TMP112EVM software is in comparator mode the Alert pin triggers if the temperature measured by the TMP112 exceeds the THIGH register for the set amount of faults as described in the Fault Queue see Section 5 ...

Page 16: ...enerated whenever the TMP112 THIGH register is exceeded by the temperature register This feature can be useful to prevent the TMP112 from triggering on temperature spikes that the user may not want to trigger with the Alert pin Figure 20 Setting the Fault Queue 5 2 10 Logging Specify the path and filename for logging data as shown in Figure 21 The standard file format is csv Data are saved in four...

Page 17: ... thermostat mode see Section 5 2 7 The THIGH input box allows the user to set when the Alert pin is triggered When the measured value in the temperature register exceeds the THIGH threshold the Alert pin triggers until the temperature returns to a value below the TLOW threshold depending on the thermostat mode selected 5 2 12 Registers Tab The registers tab displays the individual register setting...

Page 18: ...se image are intended to show how the board is laid out and are not intended to be used for manufacturing TMP112EVM PCBs 6 1 TMP112EVM Board Schematic Figure 24 shows the schematic for the TMP112EVM board Figure 24 TMP112EVM Board Schematic 18 TMP112EVM Evaluation Board and Software Tutorial SBOU144 August 2014 Submit Documentation Feedback Copyright 2014 Texas Instruments Incorporated ...

Page 19: ... show the PCB layout of the TMP112EVM Figure 25 TMP112EVM PCB Top Layer Component Side Figure 26 TMP112EVM PCB Bottom Layer 19 SBOU144 August 2014 TMP112EVM Evaluation Board and Software Tutorial Submit Documentation Feedback Copyright 2014 Texas Instruments Incorporated ...

Page 20: ...ronics RMCF0603ZT0R00 4 1 0 1 μF C1 Capacitor Ceramic 0 10 μF 25 V TDK Corporation C1608Y5V1E104Z Y5V 0603 5 2 2 V 5 mA D1 D2 LED Green Wide Angle 0603 SMD Lite On Inc LTST C193KGKT 5A 6 1 U1 TMP112 Texas Instruments 7 1 Jumper TP Jumpers All Connector Header 50 Pos 100 in Samtec TSW 150 07 G S cut to size SGL Gold See Note 3xx 8 1 Super J1 Connector Socket 50 Pin 050 R A Mill Max Manufacturing 85...

Page 21: ...ndling and use of EVMs and if applicable compliance in all respects with such laws and regulations 10 User has sole responsibility to ensure the safety of any activities to be conducted by it and its employees affiliates contractors or designees with respect to handling and using EVMs Further user is responsible to ensure that any interfaces electronic and or mechanical between EVMs and any human ...

Page 22: ...nergy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at its own expense FCC Interference Statement for Class B EVM devices This equipment has been tested and foun...

Page 23: ...l exploitation de l émetteur Mailing Address Texas Instruments Post Office Box 655303 Dallas Texas 75265 Copyright 2014 Texas Instruments Incorporated spacer Important Notice for Users of EVMs Considered Radio Frequency Products in Japan EVMs entering Japan are NOT certified by TI as conforming to Technical Regulations of Radio Law of Japan If user uses EVMs in Japan user is required by Radio Law ...

Page 24: ...esponsible 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 information or support that may be provided by TI Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipate dangerous consequences of failur...

Page 25: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments TMP112EVM ...

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