Texas Instruments TMP119 Manuale utente

EVM User's Guide: TMP119EVM

TMP119 Evaluation Module

Description

The TMP119EVM is designed to provide a quick

setup to evaluate the TMP119 device and gain

familiarity with the device down to the bit-by-bit

the performance of the TMP119 digital temperature

sensor. The TMP119EVM features a detachable

breakable TMP119 sensor board portion to allow

flexibility in location of measurement.

Get Started

1. Order the TMP119EVM on ti.com

2. Connect EVM to computer

3. Open GUI link on the TMP119EVM product page

4. Open latest version on GUI on dev.ti.com

5. Install the TI Cloud Agent Setup plug-in

6. Reload GUI

7. Confirm connection with the EVM

8. Monitor temperature change through the Data

Capture Tab

9. Detach breakable sensor PCB section and solder

connections (optional)

10. Experiment with the GUI tabs using the TMP119

data sheet

11. Visit our E2E forums for support or questions

Features

• Straightforward application to check temperature

functionality of TMP119

• Easy to use cloud-based GUI is available on the

web or can downloaded for offline use

• Breakable TMP119 sensor board

• Access to data logging, adjusting the I2C

frequency, and modifying data in registers

• Software powered by GUI Composer runs in

a browser on Windows®, Mac®, and Linux®

operating systems

Applications

•Electronic thermometers

•Wireless environmental sensors

•Thermostats

•Automotive test equipment

•Wearable fitness and activity monitors

•Cold chain asset tracking

•Gas meters and heat meters

•Temperature transmitters

TMP119EVM

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TMP119 Evaluation Module 1

1 Evaluation Module Overview

1.1 Introduction

The EVM comes in a USB stick form factor, with an onboard MSP430F5528 microcontroller that interfaces with

both the host computer and the TMP119 device. The module is designed with perforations between the sensor

and host controller on the EVM board. The perforation allows the user flexibility in their evaluation:

• The user can connect the TMP119 to the user's system or host.

• The user can connect the EVM host and software to the user's system with TMP119 devices.

• Small individual boards allow the user to place sensors in the user's system.

• Hole spacing is compatible with common 0.1" prototyping breadboards.

This user's guide describes the characteristics, operation, and use of the TMP119 Evaluation Module (EVM). A

complete schematic diagram, printed-circuit board layouts, and bill of materials are included in this document.

This user's guide details through the steps to operate the TMP119 evaluation module.

1.2 Kit Contents

Table 1-1 details the contents of the EVM kit. Contact the nearest Texas Instruments Product Information Center

for missing components. TI highly recommends checking the TI website at https://www.ti.com for the latest

revision.

Table 1-1. Kit Contents

Item Quantity

TMP119EVM 1

USB Extension Cable 1

1.3 Specification

Table 1-2 defines the absolute maximum thermal conditions of each section of the EVM. The main two sections

are the controller section and the sensor breakable section. These limits must be considered when evaluating

the performance of the device at extreme temperatures. In this case, if the setup conditions exceed the controller

absolute maximum thermal specifications, then the sensor breakable section must be detached so that only the

sensor (and not the MCU) is evaluated at these temperatures.

Table 1-2. ISOTMP35BEVM Temperature Limits

BOARD SECTION CONDITIONS TEMPERATURE RANGE

Controller board Recommended operating free-air temperature, TA-40°C to 85°C

Absolute maximum junction temperature, TJ (MAX) 95°C

TMP119 Breakable Board Recommended operating free-air temperature, TA-55°C to 150°C

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1.4 Device Information

The TMP119 is a high-precision digital temperature sensor. The TMP119 provides a 16-bit temperature result

with a resolution of 0.0078 °C and an accuracy of up to ±0.08 °C across the temperature range of 0 °C to 45

°C with no calibration. The TMP119 has an interface that is I2C- and SMBus™- compatible, programmable alert

functionality, and the device can support up to four devices on a single bus. Integrated EEPROM is included

for device programming with an additional 48-bits memory available for general use. TMP119 is NIST traceable.

TMP119 is designed to meet ASTM E1112 and ISO 80601 requirements for electronic patient thermometers. For

non-medical applications, the TMP119 can serve as a single chip digital alternative to a Platinum RTD. For more

information of the IC, please refer to the device data sheet. Table 1-3 includes some of the parameters of interest

of the TMP119 to consider when using this EVM.

Table 1-3. Device Specifications

Device Specification Value

Operating temperature range -55C to 155C

Temperature accuracy (0°C to 45°C) 0.08

Temperature accuracy (-20°C to 50°C) 0.1

Temperature accuracy (-40°C to 70°C) 0.15

Temperature accuracy (-40°C to 100°C) 0.2

Temperature accuracy (-55°C to 125°C) 0.25

Temperature accuracy (-55°C to 150°C) 0.3

Operating supply range 1.7V to 5.5V

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TMP119 Evaluation Module 3

2 Hardware

2.1 Overview

The EVM is divided into two sections: the controller section and the breakable sensor section. The breakable

sensor section can be detached to use the sensor in the following scenarios:

• Using the controller section with the sensor section connected by soldered wires/connectors to evaluate the

sensor far from the controller and PC at extreme temperatures or other conditions.

• Using the sensor section with the user's system by interfacing through I2C with the TMP119.

• Using the controller section with TMP119 sensors in the user's system.

The figure below highlights the EVM sections as well as some components that must be identified by the user to

understand their purpose and use. The components are further explained in detail in the sections below.

Figure 2-1. TMP119EVM Board Sections

2.2 Perforations and Connectivity

The perforation between the USB controller and TMP119 sensor is labeled on both sides for pin connections.

Once the sensor section is detached from the controller section, the user can interface with the sensor section in

two different ways:

• Soldering wires or 0.1'' header connectors: With this approach, the user has access to all pins of the device.

Note

Pullup resistors and protection diodes are on the controller section. Thus, when interfacing with other

controller boards, TI recommends to verify that pullup resistors and protection circuitry are present on

any controller board for safe and proper functionality.

Hardware www.ti.com

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2.3 Status LEDs and Subregulator

The switch S1 enables and disables the onboard 3.3-V regulator: U5. When the subregulator is enabled, the

green LED D3 illuminates. The subregulator must be enabled for normal operation of TMP119EVM as the

subregulator supplies power to the device and pullup voltage of the communication lines.

The red LED D4 is the MSP430F5528 status LED. Table 2-2 shows how the different modes of operation are

displayed by the LED status.

D4 LED Status MSP430F5528 Mode of Operation

Off EVM is connected to EVM GUI

Blicking in burst of 4 blinks EVM is plugged into PC, not connected to EVM GUI

Steady blinking Connected to USB power

2.4 Programming Header

The TMP119EVM comes pre-loaded with firmware that is necessary for the correct operation of the USB

interface and PC GUI software. The unpopulated header, J2, is provided for Spy-Bi-Wire access to the

MSP430F5528. TI does not recommend that users access this header or reprogram the device.

2.5 BSL Button

The TMP119EVM features push-button SW1 for entering USB BSL mode. This can be used for firmware

updates. To enter USB BSL mode, connect the EVM to a PC USB port while holding down SW1.

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TMP119 Evaluation Module 5

3 Software

3.1 Software Installation

The PC GUI Software for TMP119EVM runs on TI's GUI Composer framework. The software is available as a

live version, which runs in a browser, and is available as a download for offline use. The software is compatible

with Windows, Mac, or Linux operating systems.

3.1.1 Live Software on dev.ti.com

The live software currently works on Chrome™, Firefox®, and Safari® browsers. Internet Explorer® is not

supported. Users can access the live version through one of the following actions:

• Go to the TMP119EVM Product page on ti.com and click on the View button

• Go to dev.ti.com/gallery, log in with myTI account credentials, and search for TMP119EVM.

• Go to dev.ti.com/gallery/info/THSApps/TMP119EVM/.

Click the application icon within the gallery to launch the software. Agree to the prompts to install or update the

TI Cloud Agent browser plug-in. The plug-in is necessary for connection to the USB hardware.

Figure 3-1. Plug-in Setup

Software www.ti.com

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3.1.2 Download from dev.ti.com

Users can access the latest version of the offline software by navigating to the live version as noted above. Look

for the download icon and download both the application and run time for the operating system as shown in .

Figure 3-2. Download Pop-Up Figure 3-3. Download Pop-Up

3.2 Home Tab

The Home tab is shown at software launch. The icons on the bottom of this tab are shortcuts to the other

functional tabs of the GUI, and correspond to the icons on the left side of the GUI.

Figure 3-4. Home

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TMP119 Evaluation Module 7

3.3 Data Capture Tab

The Data Capture tab reports the temperature from the TMP119 device included on the TMP119EVM.

Temperature data is polled and displayed by default. By default, the MCU polls the registers with a 100 ms

delay. The CONVERT TEMP command (0x44) is sent automatically while polling. The polling rate setting on the

Data Capture tab is synchronized with the polling rate setting on the Registers tab. The following features of the

Data Capture Tab include:

• Reading the current temperature measurement from the TMP119 displayed in the upper right corner.

• Polling Rate drop-down menu is used to disable polling or change the polling rate.

• The Save Logging and Stop Logging buttons can be used to capture Temperature data and save the data to

a CSV format.

When capturing data, please remember the following:

• For the online version of the GUI, a download begins in the browser. This download is lost if the GUI is

closed.

• For the offline version of the GUI, the file is appended as data is received. In this case, appended data is not

lost if the GUI is closed.

Figure 3-5. Data Capture

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3.4 Registers Tab

The Registers tab interacts with the registers and the bits within the TMP119 device. For more information on

each register/bit, hover over the register name and click on the question mark to see what each bit defines.

By default, the MCU polls the registers with a 100 ms delay and the table shows the current status of the

registers and updates the changes in the table every poll. By clicking on the bits in the table, the user has the

availability to change the bit to a 1 or 0. The Write Register buttons are grayed and disabled when the button is

set to Immediate. Immediate mode triggers a Write operation each time a register is modified. When Deferred

mode is selected and the Write Register button is enabled, write operations are not performed unless the Write

When Deferred mode is selected, the user can take advantage of the following:

• Write button writes the bit changes in the selected register.

• Write All button is used to write all bit changes in all registers.

When auto read is turned off, the table no longer updates itself and the user can take advantage of the following:

• Read button reads the current status of the selected register.

• Read All button is used to fetch the current contents of all registers at once.

These settings give the user total control over bus activity, and enable individual transactions to be easily

observed with an oscilloscope, logic analyzer, or bus-sniffing device.

Figure 3-6. Registers

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TMP119 Evaluation Module 9

4 Hardware Design Files

4.1 Schematic

Re vision History

Re v NotesAppro ve d byEC N # Appro ve d Da te

N/A N/A N/A N/A N/A

VBUS

220 ohm

3P3V

3NC 4

OUT 5

GND

TLV70033DCKR

VBUS

D-

D+

GND

2.2uF

6.2V

BZT52C6V2T-7 22

100k

1.0k

GND

10uF

GND

GND 6.2V

BZT52C6V2T-7 1.00M

1.5k

GND

10pF

16V

10pF

16V

GND GND

PUR

GND

Green

150060GS75000

1 2

GNDGND

TPD4E004DRYR

IO1

IO2

GND 3

IO3 4

IO4 5

VCC

GNDGND 47

GND

0.1uF

10V

GNDGND

BSL

VCC

110

MP2MP1

MP3 MP4

SW1

3P3V 3P3V VCC VCC

3P3V VCC

4.7k

R10

10k

R11

10k

R12

3NC 4

OUT 5

GND

TLV70033DCKR

VBUS

VCC

SCL MCU_SCL

TCA9517DGKR

VCCA

SCLA

SDAA

GND 4

SDAB 6

SCLB 7

VCCB 8

MCU_SDASDA

VCORE VUSB

2.2uF

V18

SBWTCK

GND

10uF

Header_3x1

SBWTDIO

GND

0.47uF

6.3V

0.47uF

6.3V

0.47uF

6.3V

C10

GND GNDGND

GND

0.1uF

10V

C11

0.1uF

10V

C12

GND GND

VCCA 0.9V to 5.5V

VCCB 2.7V to 5.5V

VCC

MCU_SDA

Red

MCU_SCL

3P3V

SCL

ADD0

ALERT

SCL A2

SDA A1

V+

GND B2

TMP119AIYBGR

SDA

0.1uF

10V

C13

1.0k

R13

ALERT

XT2IN

GND

MSP430F5528IRGCR

P6.0/CB0 /A0 1

P6.1/CB1 /A1 2

P6.2/CB2 /A2 3

P6.3/CB3 /A3 4

P6.4/CB4 /A4 5

P6.5/CB5 /A5 6

P6.6/CB6 /A6 7

P6.7/CB7 /A7 8

P5.0/A8/VREF+/VER EF +

P5.1/A9/VREF-/VEREF -

AVCC1

P5.4/XIN

P5.5/XOUT

AVSS 1 14

DVCC1

15 DVSS 1 1 6

VCORE

P1.0/TA0CLK/ACLK

P1.1/TA0.0

P1.2/TA0.1

P1.3/TA0.2

P1.4/TA0.3

P1.5/TA0.4

P1.6/TA1CLK/CBOUT

P1.7/TA1.0

P2.0/TA1.1 26

P2.1/TA1.2 27

P2.2/TA2CLK/SMCLK 28

P2.3/TA2.0 29

P2.4/TA2.1 30

P2.5/TA2.2 31

P2.6/RTCCLK/DMAE0 32

P 2.7 /UCB0S T E/UCA0C LK 33

P 3.0 /UCB0S IMO/UC B0S DA

P 3.1 /UCB0S O MI/UCB0S CL

P 3.2 /UCB0C LK/UCA0S TE

P 3.3 /UCA0TXD/UCA0S IMO

P 3.4 /UCA0RXD/UCA0S O MI

DVSS 2 39

DVCC2

P 4.0 /P M_UCB1S TE /P M_UCA1CLK 41

P 4.1 /P M_UCB1S IMO/P M_UCB1 SDA 42

P 4.2 /P M_UCB1S O MI/P M_UCB1 S CL 43

P 4.3 /P M_UCB1C LK/P M_UCA1S TE 4 4

P 4.4 /P M_UCA1TXD/PM_UC A1 S IMO 45

P 4.5 /P M_UCA1RXD/P M_UCA1S OMI 46

P4.6/P M_NONE 47

P4.7/P M_NONE 48

VSS U 49

PU.0/DP

PUR

PU.1/DM

VBUS

VUSB

V18

AVSS 2 56

P5.2/XT2IN

P5.3/XT2OUT

TES T/ S BWTCK 59

P J .0/ TDO 60

P J .1/ TDI/TCLK 61

P J .2/ TMS 62

P J .3/ TCK 6 3

RS T/NMI/SB WTDIO 64

QF N PAD 65

4NC

XT2OUT

GND

VCC

33k

R14

PUR

SBWTDIOV18

VCORE SBWTCK

VBUS

2200pF

50V

C14

VUSB

GND

VCC

GND

0.1uF

10V

C15

0.1uF

10V

C16

0.1uF

10V

C17

GND GND GND

VBUS = 5V INPUT

VUSB = 3.3V OUT

VUSB 12mA Ma x

Figure 4-1. Schematic

Hardware Design Files www.ti.com

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