TMP275-Q1 Datasheet, PDF (1/31 Pages) Texas Instruments – Automotive Grade Temperature Sensor

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TMP275-Q1
SBOS760A – NOVEMBER 2015 – REVISED JANUARY 2016
TMP275-Q1 Automotive Grade ±0.5°C Temperature Sensor with I²C and SMBus Interface
in Industry-Standard LM75 Form Factor and Pinout
1 Features
•1 AEC-Q100 Qualified with:
– Temperature Grade 1: –40°C to +125°C
Ambient Operation Temperature Range
– HBM ESD Classification Level 2
– CDM ESD Classification Level C6
• 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 8-Pin VSSOP and SOIC Packages
• No Specified Power-Up Sequence Required, Two-
Wire Bus Pullups Can Be Enabled Before V+
2 Applications
• Climate Controls
• Infotainment Processor Management
• Airflow Sensors
• Battery Control Units
• Engine Control Units
• UREA Sensors
• Water Pumps
• HID Lamps
• Airbag Control Units
Simplified Schematic
5-k
Pullup Resistors
2.7-V to 5.5-V
Supply Voltage
0.01-µF
Supply Bypass
Capacitor
3 Description
The TMP275-Q1 is a ±0.5°C, accurate integrated
digital temperature sensor with a 12-bit, analog-to-
digital converter (ADC) that can operate on a supply
voltage as low as 2.7 V and is pin- and register-
compatible with the Texas Instruments' LM75,
TMP75, TMP75B, and TMP175 devices. The
TMP275-Q1 device is available in 8-pin SOIC and
VSSOP packages and requires no external
components to sense temperature. The device is
capable of reading temperatures with a maximum
resolution of 0.0625°C (12 bits) and as low as 0.5°C
(9 bits), thus allowing the user to maximize efficiency
by programming for higher resolution or faster
conversion time. The device is specified over the
temperature range of –40°C to +125°C.
The TMP275-Q1 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-Q1 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-Q1
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+
2
SCL
3
ALERT
ΔΣ
ADC
7
A0
Serial
Interface
6
A1
Two-Wire
Host
Controller
1
SDA
2
SCL
3
ALERT
4
GND
8
V+
7
A0
6
A1
5
A2
GND
4
OSC
Config.
5
and Temp.
A2
Reg is ter
TMP275-Q1
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.