TMP107 Datasheet, PDF (1/40 Pages) Texas Instruments – TMP107 Digital Temperature Sensor with Bidirectional UART One-Wire Interface and EEPROM

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TMP107
SBOS716B – MAY 2015 – REVISED SEPTEMBER 2015
TMP107 Digital Temperature Sensor with
Bidirectional UART One-Wire Interface and EEPROM
1 Features
•1 High Accuracy (Without Calibration):
– ±0.4°C (max) from –20°C to +70°C
– ±0.55°C (max) from –40°C to +100°C
– ±0.7°C (max) from –55°C to +125°C
• High Resolution: 14 Bits (0.015625°C)
• UART-Compatible, SMAART Wire™ Interface:
– Allows Up To 32 Daisy-Chained Devices
• EEPROM Memory for Unique Addressing, Trip
Level Programming, and General-Purpose
Storage
• Continuous Conversion and Shutdown Mode for
Power Savings
• One-Shot Conversion Mode for Custom Update
Rates and Power Savings
• Programmable Alert Feature
• Operating Temperature Range: –55°C to +125°C
• Operating Supply Range: 1.7 V to 5.5 V
• Package: SOIC-8
2 Applications
• Cold-Chain Logistics
• Distributed Temperature Sensing
• Power-Supply and Battery Thermal Protection
• Servers and Telecommunication Systems
• Building Automation and HVAC
• Agricultural Equipment
• Medical Devices
• Industrial Process Control
3 Description
The TMP107 digital output temperature sensor
supports a total of 32 daisy-chained devices. Each
sensor has a unique 5-bit address stored in
electrically-erasable programmable memory
(EEPROM). The TMP107 is capable of reading
temperatures with a resolution of 0.015625°C, and is
accurate to within ±0.4°C in the range from –20°C to
+70°C. The TMP107 is ideal for replacing NTC and
PTC thermistors where high accuracy is required.
The unique 5-bit address stored in the EEPROM is
determined during the automated address
assignment operation, and is based on the position of
each sensor relative to the SMAART wire host.
Multiple operating modes provide maximum flexibility
in selecting between low power consumption for
battery operation, and high update rates for real-time
control applications.
The TMP107 is ideal for extended temperature
measurement in a variety of industrial,
instrumentation, communication, and environmental
applications. The TMP107 is available in an 8-pin
SOIC package and is specified for operation over a
temperature range of −55°C to +125°C.
Device Information⁽¹⁾
DEVICE NAME
PACKAGE
BODY SIZE
TMP107
SOIC (8)
4.90 mm × 3.90 mm
(1) For all available packages, see the package option addendum
at the end of the datasheet.
1.7 V to 5.5 V
Typical Application
V+
MCU
TX
UART
RX
GND
4.1 k
0.1 F
10
100
Sensor 1
TMP107
1 _V+
R2 ⁸
2
R1
7
I/O2
3 _{I/O1 ALERT2} 6
4 _{ALERT1 GND} 5
0.1 F
Sensor 2
TMP107
1 _V+
R2 ⁸
2
R1
7
I/O2
3 _{I/O1 ALERT2} 6
4 _{ALERT1 GND} 5
All figures shown as TMP107 represent TMP107-Q1 as well.
0.1 F
Sensor N
TMP107
1 _V+
R2 ⁸
2 _R1
I/O2 ⁷
3
6
I/O1 ALERT2
4
ALERT1
5
GND
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.