TMP112-Q1 Datasheet, PDF (1/33 Pages) Texas Instruments – TMP112-Q1 Automotive Grade High-Accuracy, Low-Power, Digital Temperature Sensor in SOT563

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TMP112-Q1
SLOS887D – SEPTEMBER 2014 – REVISED DECEMBER 2015
TMP112-Q1 Automotive Grade High-Accuracy, Low-Power,
Digital Temperature Sensor in SOT563
1 Features
•1 AEC-Q100 Qualified with:
– Temperature Grade 1: –40°C to 125°C
Ambient Operating Temperature Range
– Device HBM ESD Classification Level 2
– Device CDM ESD Classification Level C6
• SOT563 Package (1.6 mm × 1.6 mm) is a 68%
Smaller Footprint than SOT23
• Accuracy Without Calibration:
– 0.5°C (max) from 0°C to 65°C
– 1°C (max) from –40°C to 125°C
• Low Quiescent Current:
– 10-μA Active (max)
– 1-μA Shutdown (max)
• Supply Range: 1.4 to 3.6 V
• Resolution: 12 Bits
• Digital Output: SMBus™, Two-Wire and I²C
Interface Compatibility
• NIST Traceable
2 Applications
• Climate Control
• Infotainment Processor Management
• Airflow Sensor
• Battery Control Unit
• Engine Control Unit
• UREA Sensors
• Water Pumps
• HID Lamps
• Airbag Control Unit
Simplified Schematic
Supply Voltage
1.4 V to 3.6 V
Pullup Resistors
5k
Supply Bypass
Capacitor
0.01 µF
3 Description
The TMP112-Q1 device is a digital temperature
sensor ideal for NTC/PTC thermistor replacement
where high accuracy is required. The device offers an
accuracy of ±0.5°C without requiring calibration or
external component signal conditioning. Device
temperature sensors are highly linear and do not
require complex calculations or lookup tables to
derive the temperature. The calibrating for improved
accuracy feature allows users to calibrate for an
accuracy as good as ±0.17°C (see the Calibrating for
Improved Accuracy section). The on-chip 12-bit ADC
offers resolutions down to 0.0625°C.
The 1.6-mm × 1.6-mm SOT563 package is 68%
smaller footprint than an SOT23 package. The
TMP112-Q1 device features SMBus™, two-wire and
I²C interface compatibility, and allows up to four
devices on one bus. The device also features an
SMBus alert function. The device is specified to
operate over supply voltages from 1.4 to 3.6 V with
the maximum quiescent current of 10 µA over the full
operating range.
The TMP112-Q1 device is ideal for extended
temperature measurement in control units, climate
control, infotainment, and sensor modules. The
device is specified for operation over a temperature
range of –40°C to 125°C.
The TMP112-Q1 production units are 100% tested
against sensors that are NIST-traceable and are
verified with equipment that are NIST-traceable
through ISO/IEC 17025 accredited calibrations.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TMP112-Q1
SOT563 (6)
1.60 mm × 1.20 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Block Diagram
Temperature
1
SCL
Diode
temp.
sensor
Control
logic
6
SDA
Two-Wire
Host Controller
1
1
SCL
TMP112-Q1
6
SDA
2
GND
5
V+
3
ALERT
4
ADD0
GND
2
ΔΣ
ADC
Serial
interface
5
V+
ALERT
3
Oscillator
Config.
4
and temp.
register
ADD0
TMP112-Q1
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.