LMT87_017 Datasheet, PDF (1/29 Pages) Texas Instruments – 2.7-V, SC70/TO-92/TO-92S, Analog Temperature Sensors With Class-AB Output

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LMT87, LMT87-Q1
SNIS170D – JANUARY 2014 – REVISED JUNE 2017
LMT87/LMT87-Q1 2.7-V, SC70/TO-92/TO-92S,
Analog Temperature Sensors With Class-AB Output
1 Features
•1 LMT87-Q1 is AEC-Q100 Qualified for Automotive
Applications:
– Device Temperature Grade 0: –40°C to
+150°C
– Device HBM ESD Classification Level 2
– Device CDM ESD Classification Level C6
• LMT87LPG (TO-92S package) has a Fast
Thermal Time Constant, 10-s Typical (1.2 m/s
Airflow)
• Very Accurate: ±0.4°C Typical
• Low 2.7-V Operation
• Average Sensor Gain of -13.6 mV/°C
• Low 5.4-µA Quiescent Current
• Wide Temperature Range: –50°C to 150°C
• Output is Short-Circuit Protected
• Push-Pull Output With ±50-µA Drive Capability
• Footprint Compatible With the Industry-Standard
LM20/19 and LM35 Temperature Sensors
• Cost-Effective Alternative to Thermistors
2 Applications
• Automotive
• Infotainment and Cluster
• Powertrain Systems
• Smoke and Heat Detectors
• Drones
• Appliances
3 Description
The LMT87 and LMT87-Q1 are precision CMOS
temperature sensors with ±0.4°C typical accuracy
(±2.7°C max) and a linear analog output voltage that
is inversely proportional to temperature. The 2.7-V
supply voltage operation, 5.4-μA quiescent current,
and 0.7-ms power-on time enable effective power-
cycling architectures to minimize power consumption
for battery-powered applications such as drones and
sensor nodes. The LMT87LPG through-hole TO-92S
package fast thermal time constant supports off-
board time-temperature sensitive applications such
as smoke and heat detectors. The LMT87-Q1 device
is AEC-Q100 Grade 0 qualified and maintains ±2.7°C
maximum accuracy over the full operating
temperature range without calibration; this makes the
LMT87-Q1 suitable for automotive applications such
as infotainment, cluster, and powertrain systems. The
accuracy over the wide operating range and other
features make the LMT87 and LMT87-Q1 excellent
alternative to thermistors.
For devices with different average sensor gains and
comparable accuracy, refer to Comparable
Alternative Devices for alternative devices in the
LMT8x family.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LMT87
SOT (5)
TO-92 (3)
2.00 mm × 1.25 mm
4.3 mm × 3.5 mm
LMT87-Q1
SOT (5)
2.00 mm × 1.25 mm
(1) For all available packages, see the orderable addendum
addendum at the end of the data sheet.
Thermal Time Constant
100%
90%
80%
70%
60%
50%
40%
30%
20%
10%
0
0
20
40
60
TIME (s)
* Fast thermal response NTC
LMT8xLPG
Thermistor
80
100
D003
Output Voltage vs Temperature
VDD (+2.7V to +5.5V)
VDD
LMT87
CBP
OUT
GND
Copyright © 2016, Texas Instruments Incorporated
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.