Texas Instruments TMP119 User manual

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
register level. The EVM allows users to evaluate
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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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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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.
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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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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
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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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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
Register button is clicked.
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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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
L1
3P3V
IN
1
2
EN
3NC 4
OUT 5
GND
U1
TLV70033DCKR
VBUS
DM
22
R1
VBUS
1
D-
2
D+
3
GND
4
56
J1
DP
2.2uF
C1
6.2V
D1
BZT52C6V2T-7 22
R2
100k
R3
1.0k
R4
GND
10uF
C2
GND
GND 6.2V
D2
BZT52C6V2T-7 1.00M
R5
1.5k
R6
GND
10pF
16V
C3
10pF
16V
C4
GND GND
PUR
GND
21
Green
D3
150060GS75000
1 2
S1
GNDGND
TPD4E004DRYR
IO1
1
IO2
2
GND 3
IO3 4
IO4 5
VCC
6
U2
GNDGND 47
R7
GND
0.1uF
10V
C5
GNDGND
BSL
VCC
110
R8
1
MP2MP1
2
MP3 MP4
SW1
3P3V 3P3V VCC VCC
3P3V VCC
4.7k
R9
4.7k
R10
10k
R11
10k
R12
IN
1
2
EN
3NC 4
OUT 5
GND
U4
TLV70033DCKR
VBUS
VCC
SCL MCU_SCL
TCA9517DGKR
VCCA
1
SCLA
2
SDAA
3
GND 4 EN
5
SDAB 6
SCLB 7
VCCB 8
U3
MCU_SDASDA
VCORE VUSB
2.2uF
C6
V18
SBWTCK
GND
10uF
C7
1
2
3
J2
Header_3x1
SBWTDIO
GND
0.47uF
6.3V
C8
0.47uF
6.3V
C9
0.47uF
6.3V
C10
GND GNDGND
GND
GND
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
21
Red
D4
MCU_SCL
3P3V
SCL
ADD0
C1
ALERT
C2
SCL A2
SDA A1
V+
B1
GND B2
TMP119AIYBGR
U6
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 +
9
P5.1/A9/VREF-/VEREF -
10
AVCC1
11
P5.4/XIN
12
P5.5/XOUT
13
AVSS 1 14
DVCC1
15 DVSS 1 1 6
VCORE
17
P1.0/TA0CLK/ACLK
18
P1.1/TA0.0
19
P1.2/TA0.1
20
P1.3/TA0.2
21
P1.4/TA0.3
22
P1.5/TA0.4
23
P1.6/TA1CLK/CBOUT
24
P1.7/TA1.0
25
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
34
P 3.1 /UCB0S O MI/UCB0S CL
35
P 3.2 /UCB0C LK/UCA0S TE
36
P 3.3 /UCA0TXD/UCA0S IMO
37
P 3.4 /UCA0RXD/UCA0S O MI
38
DVSS 2 39 DVCC2
40
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
50
PUR
51
PU.1/DM
52
VBUS
53
VUSB
54
V18
55
AVSS 2 56
P5.2/XT2IN
57
P5.3/XT2OUT
58
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
U5
1
3
NC
4NC
2
Y1
XT2OUT
GND
VCC
DP
DM
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
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