Texas Instruments TMP110 Manuale utente
EVM User's Guide: TMP110EVM
TMP110 Evaluation Module
Description
The TMP110 is TI's first X2SON packaged digital
temperature sensor with I2C communication and
alert/address options. The TMP110EVM allows users
to evaluate the performance of the TMP110 digital
temperature sensor. The TMP110EVM is designed
to be used as is; using the evaluation module GUI.
Alternatively, the sensor can be detached to be
evaluated in the user's system. For this purpose,
there are multiple alternatives to interface with the
sensor for best user experience.
Get Started
1. Order the TMP110EVM
2. Detach the sensor breakable PCB section
(optional)
3. Connect the EVM to computer or user system
4. Go to the TMP110EVM gallery page on dev.ti.com
to either download the GUI or run on the web
5. Refer to the TMP110 data sheet for IC details
6. Visit our E2E forums for support or questions
Features
• Easy to use cloud-based GUI is available on the
web or can be downloaded for offline use
• Showcasing the ultra-small, leadless X2SON
package digital temperature sensor with alert
functionality
• Breakable sensor board with 0.1'' pitch header
footprint and 4-pin JST connector footprint to
interface with the TMP110
• Data logging with GUI
Applications
•Building automation
–Occupancy detection
–Video doorbell
–HVAC: Wireless environmental sensor
•Factory automation & control
–Machine vision camera
–Industrial PC: Single board computer
–CPU (PLC controller)
• Cold chain
•Data center & enterprise computing
–Solid State Drive (SSD)
–Rack Server Motherboard
•Personal electronics
–PC & notebooks, tablets
–Digital still & video camera
–Augmented reality glasses
–Smart speakers
TMP110EVM
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TMP110 Evaluation Module 1
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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 TMP110 device using an I2C interface. 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 TMP110 breakable section to the user's system/host.
• The user can connect the EVM host and software to the user's system with TMP110 devices.
• Small individual boards allow the user to place sensors in the user's system or in a temperature-controlled
environment to evaluate performance.
• Hole spacing is compatible with common 0.1" prototyping breadboards.
• Surface mount connector footprint is compatible with 4-pin JST I2C systems.
This user's guide describes the characteristics, operation, and use of the TMP110EVM evaluation board by
explaining how to set up and configure the software, describing the hardware, and reviewing various aspects
of the software operation. Throughout this document, the terms evaluation board, evaluation module, and EVM
are synonymous with the TMP110EVM. This user's guide also provides information on the operating procedure,
input and output connections, an electrical schematic, printed-circuit board (PCB) layout drawings, and a parts
list for the EVM.
1.2 Kit Contents
Table 1-1 details the contents of the EVM kit. Contact the Texas Instruments Product Information Center nearest
you if any components are missing. TI highly recommends that users check the TI website at http://www.ti.com
to verify that the latest versions of the related software is downloaded.
Table 1-1. EVM Kit Contents
Item Quantity
TMP110EVM 1
1.3 Specification
Table 1-2 defines the absolute maximum thermal conditions of each section of the EVM. The main 2 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. Thermal Specifications
BOARD SECTION CONDITIONS TEMPERATURE RANGE
Controller board
Recommended operating free-air
temperature, TA
-40°C to 85°C
Absolute maximum junction temperature, TJ95°C
TMP110 breakable board Recommended operating free-air
temperature, TA
-55°C to 150°C
1.4 Device Information
The TMP110 is a digital output temperature sensor that is calibrated in production to achieve high accuracy
in a small X2SON package. This device communicates in a two-wire environment compatible with SMBus and
I2C interfaces. The device can be set to make continuous or one-shot conversions and can be ordered with
an address or an alert pad as needed. This EVM showcases one of the alert devices with the default address
of 0x48. 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 TMP110 to consider when using this EVM.
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Table 1-3. Device Specifications
DEVICE SPECIFICATION VALUE
Operating temperature range -55°C to 150°C
Temperature accuracy (-40°C to 125°C) ± 1°C
Temperature accuracy (-55°C to 150°C) ± 2°C
Operating supply range 1.4 V to 5.5 V
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TMP110 Evaluation Module 3
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2 Hardware
2.1 Overview
The EVM is divided into 2 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 TMP110.
• Using the controller section with TMP110 sensors in the user's system.
Figure 2-1 highlights the EVM sections as well as some components that must be identified by the user to
understand the purpose and use. The components are further explained in detail in the sections below.
BSL Bu
on MCU
Subregulator
Switch Breakout Sensor Sec
on
TMP110 Sensor
Programming Header
Perfora
on
Alert LED
Figure 2-1. TMP110EVM Board Sections
2.2 Perforations & Connectability
The perforation between the USB controller and TMP110 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
2 different ways:
•Soldering wires or 0.1'' header connectors: With this approach, the user has access to all pins of the
device.
•Installing a surface mount 4-pin JST connector: The breakable sensor section has the footprint of this
connector so that the user can interface with controller boards that connect to I2C devices with JST cabling.
With this method, the user only has access to the communication lines (SDA and SCL), supply, and ground.
Note that 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.
Table 2-1 shows the pinout of the 4-pin connector footprint as reference.
Table 2-1. Connector Pinout
TMP110 PIN CONNECTOR PIN
GND 1
Vdd 2
SDA 3
SCL 4
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2.3 Status LEDs & Subregulator
The switch S1 enables and disables the on-board 3.3-V regulator: U5. When the subregulator is enabled, the
green LED D3 illuminates. The subregulator must be enabled for normal operation of TMP110EVM 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.
Table 2-2. Status LED Mode of Operation
D4 LED STATUS MSP430F5528 MODE OF OPERATION
Off EVM is connected to EVM GUI
Blinking in bursts of 4 blinks EVM is plugged into PC, not connected to EVM GUI
Steady blinking Connected to USB power
2.4 Programming Header
The TMP110EVM 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 TMP110EVM 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 Download
The PC GUI Software for TMP110EVM runs on TI's GUI Composer framework. The software is available as
a live version which runs in your browser, and is available as a download for offline use. The software is
compatible with Windows®, Mac®, and 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 EVM tool page and click on the View button
• Go to https://dev.ti.com/gallery/info/THSApps/tmp110evm
Click on the application icon within the gallery to launch the software. Click on the prompt to install the TI Cloud
Agent Bridge browser plugin.
3.1.2 Offline Software
3.1.2.1 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 runtime for the operating system as shown in
the Gallery Download.
Figure 3-1. Download Pop-Up
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3.2 Home Tab
The Home Tab is shown at software launch. From here, you can access the Information, Data, Registers and
Collateral tabs which are explained below. The icons on the left side of the screen are shortcuts to the tabs.
Figure 3-2. Home
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3.3 Information Tab
The Information tab shows device details and features of the TMP110 and EVM details. The device information
such as the block diagram, functional modes, and specifications of the sensor is found under the Device
Information & Features tab. EVM details such as the schematic and legend are also shown under the EVM
Details tab.
Figure 3-3. Information
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3.4 Data Tab
The Data Capture tab reports the temperature from the TMP110 device included on the TMP110EVM. By
default, once the EVM is connected and the GUI is loaded and running properly, the device starts converting and
MCU starts reading the conversions which are automatically reported and displayed in the Data tab graph.
On the right side of this tab, the user can also see the latest temperature read. There is also a chart controls box
which allows the user to:
• Write to the polling rate bits. By default, once a value is selected from the dropdown, the microcontroller
automatically writes to the TMP110.
• Start and stop polling the data read to export to CSV format for temperature monitoring. The user must start
polling by clicking the Start button and the data (CSV) automatically exports once the stop button is clicked.
The Alert Config box allows the user to easily configure the alert functionality settings of the TMP110 such as
polarity, mode, and limits. The limits can be written on the left box in decimal format and automatically displays
in hexadecimal on the right box for reference. By default, all of these settings are written automatically (once
selected) to the TMP110 by the MCU.
Figure 3-4. Data Capture
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3.5 Registers Tab
The Registers tab interacts with the registers and bits within the TMP110 device. For more information on each
register/bit, click on a register name to see what each bit defines.
The Auto Read drop-down box configures polling of register contents. By default, the MCU polls the registers
with a 100 ms delay. When Auto Read is Off, click Read Register to fetch the contents of the current register.
Read All Registers can be used to fetch the contents of all registers at once.
By default, the Write Register button is 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, the Write
Register button is enabled, and write operations are not performed unless the Write Register button is clicked.
These settings give the user total control over I2C Bus activity, and enable individual transactions to be easily
observed with an oscilloscope, logic analyzer, or bus-sniffing device.
Figure 3-5. Registers
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