TMP275_15 Datasheet, PDF (1/33 Pages) Texas Instruments – TMP275 ±0.5°C Temperature Sensor With I2C and SMBus Interface in Industry Standard LM75 Form Factor and Pinout

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TMP275
SBOS363E – JUNE 2006 – REVISED NOVEMBER 2015
TMP275 ±0.5°C Temperature Sensor With I²C and SMBus Interface in Industry Standard
LM75 Form Factor and Pinout
1 Features
•1 High Accuracy:
– ±0.5°C (Maximum) from −20°C to 100°C
– ±1°C (Maximum) from −40°C to 125°C
• Low Quiescent Current:
– 50 μA (Typical)
– 0.1-μA Standby
• Resolution: 9- to 12-Bits, User-Selectable
• Digital Output: SMBus™, Two-Wire, and I²C
Interface Compatibility
• 8 I²C/SMBus Addresses
• Wide Supply Range: 2.7 V to 5.5 V
• Small VSSOP-8 and SOIC-8 Packages
• No Specified Power-up Sequence Required; Two-
Wire Bus Pullups May Be Enabled Before V+
2 Applications
• Power-Supply Temperature Monitoring
• Computer Peripheral Thermal Protection
• Battery Management
• Office Machines
• Servers
• Thermostat Controls
• Environmental Monitoring and HVAC
• Electromechanical Device Temperature
• Data Logger
Simplified Schematic
Pullup Resistors
5k
Supply Voltage
2.7V to 5.5V
Supply Bypass
Capacitor
0.01 µF
Two-Wire
Host Controller
1
TMP275
SDA
2
SCL
3
ALERT
4
GND
8
V+
7
A0
6
A1
A2 ⁵
3 Description
The TMP275 is a ±0.5°C accurate integrated digital
temperature sensor with a 12-bit analog-to-digital
converter (ADC) that can operate as low as 2.7-V
supply voltage and is pin and register compatible with
the Texas Instruments LM75, TMP75, TMP75B, and
TMP175 devices. This device is available in SOIC-8
and VSSOP-8 packages, and it requires no external
components to sense the temperature. The TMP275
is capable of reading temperatures with a maximum
resolution of 0.0625°C (12 bits) and as low as 0.5°C
(9 bits), which allows the user to maximize efficiency
by programming for higher resolution or faster
conversion time. The device is specified over a
temperature range of -40°C to 125°C.
The TMP275 device features SMBus and two-wire
interface compatibility, and allows up to eight devices
on the same bus with the SMBus overtemperature
alert function. The factory-calibrated temperature
accuracy and the noise-immune digital interface
make the TMP275 the preferred solution for
temperature compensation of other sensors and
electronic components, without the need for
additional system-level calibration or elaborate board
layout for distributed temperature sensing.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TMP275
SOIC (8)
VSSOP (8)
4.90 mm × 3.91 mm
3.00 mm × 3.00 mm
(1) For all available packages, see the package option addendum
at the end of the data sheet.
Internal Block Diagram
Temperature
SDA ¹
Diode
Temp.
Sensor
Control
Logic
8 _V+
SCL
ALERT
2
ΔΣ
A/D
3 ^Converter
7 _A0
Serial
Interface
6 _A1
GND ⁴
OSC
Config.
and Temp.
5
A2
Register
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.