LMT87

OUT

GND

VDD

CBP

VDD (+2.7V to +5.5V)

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

SNIS170E – JANUARY 2014 – REVISED OCTOBER 2017

LMT87 2.7-V, SC70/TO-92/TO-92S,

Analog Temperature Sensors With Class-AB Output

1

1 Features

1

•

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 device is a precision CMOS temperature

sensor

with

±0.4°C

typical

accuracy

(±2.7°C

maximum) 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 accuracy over the

wide operating range and other features make the

LMT87 an 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)

2.00 mm × 1.25 mm

TO-92 (3)

4.30 mm × 3.50 mm

TO-92S (3)

4.00 mm × 3.15 mm

Thermal Time Constant

* Fast thermal response NTC

Output Voltage vs Temperature