LMT87

OUT

GND

Copyright © 2016, Texas Instruments Incorporated

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LMT8xLPG

Thermistor

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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.

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

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

(1)

For all available packages, see the orderable addendum

addendum at the end of the data sheet.

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.

PART NUMBER

PACKAGE

BODY SIZE (NOM)

LMT87

SOT (5)

2.00 mm × 1.25 mm

TO-92 (3)

4.3 mm × 3.5 mm

LMT87-Q1

SOT (5)

2.00 mm × 1.25 mm

Thermal Time Constant

* Fast thermal response NTC

Output Voltage vs Temperature