background image

USB-to-I

2

Converter

(MSP430)

TMP468

Remote 1

Remote 2

Remote 3

Remote 4

Remote 5

Remote 6

Remote 7

Remote 8

USB

I

2

C

Dashed lines represent breakable connections on PCB.

Theory of Operation for the EVM Hardware

www.ti.com

4

SBOU184B – November 2016 – Revised August 2019

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Copyright © 2016–2019, Texas Instruments Incorporated

TMP468EVM and TMP468QFNEVM

2

Theory of Operation for the EVM Hardware

The EVM consists of three sections that can be separated by breaking the PCB at the perforations. The dashed lines in

Figure 5

represent

sections of the PCB that can be separated. The left-most section contains a standard USB Type A connector and a

MSP430

microcontroller acting

as a USB-to-I

2

C converter. The middle section features the TMP468 device as well as the recommended passive components. The right-most

section provides eight discrete transistors that can be used as remote junctions for sensing temperature.

If the left and middle sections of the PCB are separated, they can be reconnected remotely using the 0.1-inch spaced pin holes provided. All of the
pin holes serve as test points, and are labeled on the back of the PCB. The middle section featuring TMP468 may be connected to another I

2

C

host for evaluation. In the remote junction section of the PCB, each individual transistor may be separated and re-wired for remote testing.

Figure 5. EVM Hardware Overview

Summary of Contents for TMP468EVM

Page 1: ...This user s guide discusses how to set up and configure the software reviews the hardware and reviews various aspects of the software operation Throughout this document the terms evaluation board eval...

Page 2: ...12 TMP468EVM GUI Download From the Gallery 9 13 GUI Composer Runtime Wizard 10 14 TMP468EVM GUI License Agreement 10 15 GUI Composer Installation Directory 11 16 Ready to Install 11 17 Installing GUI...

Page 3: ...roduct Information Center nearest you if any component is missing It is highly recommended that you check the TI website at http www ti com to verify that you have the latest versions of the related s...

Page 4: ...d The left most section contains a standard USB Type A connector and a MSP430 microcontroller acting as a USB to I2 C converter The middle section features the TMP468 device as well as the recommended...

Page 5: ...this prompt occurs allow the system device manager to install the human interface drivers by clicking Yes when requested to install drivers Windows confirms installation of the drivers with the messag...

Page 6: ...48 R10 V 1001001 49 R11 SDA 1001010 4A R12 SCL 1001011 4B Figure 7 EVM Address Pin Hole Connections 3 2 5 Shunt Resistor Shunt resistor R13 connects directly to the TMP468 device R13 can be removed o...

Page 7: ...applications can run directly from the Gallery with minimal install or can be downloaded from the Gallery with runtime to run on a desktop local machine The applications is supported to use on many p...

Page 8: ...truments Incorporated TMP468EVM and TMP468QFNEVM Click on the TMP468EVM GUI icon Users may be prompted to download and install the browser extensions for Firefox or Chrome and the TI Cloud Agent Appli...

Page 9: ...ruments Incorporated TMP468EVM and TMP468QFNEVM 4 1 2 Running GUI on Desktop In the TMP468EVM GUI icon click on the download icon to download the TMP468EVM_GUI_installer_win zip When the pop up screen...

Page 10: ...exe file located in Unzipped location The EVM software installer then begins the installation process Follow the on screen instructions by clicking the Next button to install the GUI Composer runtime...

Page 11: ...eedback Copyright 2016 2019 Texas Instruments Incorporated TMP468EVM and TMP468QFNEVM Click on the Next button to accept the default installation directory Installation takes some time to complete Fig...

Page 12: ...4 2 1 Launching and Running the Software The TMP468EVM GUI can be run from TI Cloud repository http dev ti com gallery from the Firefox or Chrome browser or from Windows desktop offline Start the laun...

Page 13: ...s the N Factor to more closely reflect the N Factor of the transistors on the EVM Further adjustments to the N Factor correction register may be needed as N factor of the transistors can vary 4 2 2 Ho...

Page 14: ...to guide the user through the basic settings of the TMP468EVM The user can choose to either use default settings or be guided through the setup Choosing to use default settings will take you straight...

Page 15: ...nd TMP468QFNEVM If you choose to be guided through the setup you will see a page that will make sure the TMP468EVM is connected correctly Select the I2C address that correlates to in which the ADD pin...

Page 16: ...Documentation Feedback Copyright 2016 2019 Texas Instruments Incorporated TMP468EVM and TMP468QFNEVM Figure 22 Quick Start Guide At the bottom of these settings you will see a choice to go to the Basi...

Page 17: ...ock this toggle switch will lock or unlock the registers 4 2 4 2 Device Configuration Shutdown setting this checkbox will place the device into shutdown mode Conversion per second this slider will set...

Page 18: ...or of the remote BJT Set this spinner to the N factor of the remote BJT that is connected to the TMP468EVM Enable this checkbox will enable this channel to calculate new temperature data during a conv...

Page 19: ...the right of the graph as well as displays for the temperature readings Figure 25 Threshold Sliders Graph this is where the temperature data and thresholds are plotted Clicking on the traces in the le...

Page 20: ...tion short version from the data sheet describing that register Clicking on a specific Register Name will populate the Field View to on the right side of the screen The Field View describes each bit f...

Page 21: ...2016 2019 Texas Instruments Incorporated TMP468EVM and TMP468QFNEVM 4 2 7 Collateral The Collateral Tab as shown in Figure 27 contains links to web documents pertinent to the TMP468EVM The page is div...

Page 22: ...5 3 XT2OUT 58 TEST SBWTCK 59 PJ 0 TDO 60 PJ 1 TDI TCLK 61 PJ 2 TMS 62 PJ 3 TCK 63 RST NMI SBWTDIO 64 QFN PAD 65 U5 MSP430F5528IRGCR VCORE DP DM PUR SBWTDIO SBWTCK IN 1 2 EN 3 NC 4 OUT 5 GND U2 TLV7003...

Page 23: ...9 Texas Instruments Incorporated TMP468EVM and TMP468QFNEVM 5 2 EVM PCB Components Layout Figure 29 shows the layout of the components for the TMP468EVM board Figure 30 shows the layout of the compone...

Page 24: ...0J222KA01D MuRata D1 1 4 3 V Diode Zener 4 3 V 300 mW SOD 523 SOD 523 BZT52C4V3T 7 Diodes Inc D2 1 Green LED Green SMD LED_0603 LTST C191TGKT Lite On D3 1 6 2 V Diode Zener 6 2 V 300 mW SOD 523 SOD 52...

Page 25: ...h Accuracy Remote and 1 Local Temperature Sensor with Pin Programmable Bus Address YFF0016AWAW YFF0016AWAW or RGT0016C TMP468AIYFFR or TMP468AIRGTR Texas Instruments U2 U6 2 Single Output LDO 200 mA F...

Page 26: ...umbers in the current version Changes from A Revision February 2017 to B Revision Page Changed the EVM Software Setup section Renamed section to TMP468EVM Software Installation 7 Changed the Using the...

Page 27: ...ther than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control tec...

Page 28: ...These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not in...

Page 29: ...instructions set forth by Radio Law of Japan which includes but is not limited to the instructions below with respect to EVMs which for the avoidance of doubt are stated strictly for convenience and s...

Page 30: ...any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electr...

Page 31: ...R DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthe...

Page 32: ...e resources are subject to change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reprod...

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