LMT87-Q1 Sensors Datasheet

LMT87-Q1 Datasheet, PDF, Equivalent


Part Number

LMT87-Q1

Description

Analog Temperature Sensors

Manufacture

etcTI

Total Page 22 Pages
Datasheet
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LMT87-Q1
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LMT87-Q1 2.7-V, SC70,
Analog Temperature Sensors With Class-AB Output
LMT87-Q1
SNIS202 – OCTOBER 2017
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
• 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-Q1 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 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-Q1 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-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.

LMT87-Q1
LMT87-Q1
SNIS202 – OCTOBER 2017
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Comparison Tables................................... 3
6 Pin Configuration and Functions ......................... 3
7 Specifications......................................................... 4
7.1 Absolute Maximum Ratings ...................................... 4
7.2 ESD Ratings.............................................................. 4
7.3 Recommended Operating Conditions....................... 4
7.4 Thermal Information .................................................. 4
7.5 Accuracy Characteristics........................................... 5
7.6 Electrical Characteristics .......................................... 5
7.7 Typical Characteristics ............................................. 6
8 Detailed Description .............................................. 8
8.1 Overview ................................................................... 8
8.2 Functional Block Diagram ......................................... 8
8.3 Feature Description................................................... 8
8.4 Device Functional Modes........................................ 10
9 Application and Implementation ........................ 12
9.1 Application Information............................................ 12
9.2 Typical Applications ............................................... 12
10 Power Supply Recommendations ..................... 13
11 Layout................................................................... 14
11.1 Layout Guidelines ................................................. 14
11.2 Layout Example .................................................... 14
12 Device and Documentation Support ................. 15
12.1 Receiving Notification of Documentation Updates 15
12.2 Community Resources.......................................... 15
12.3 Trademarks ........................................................... 15
12.4 Electrostatic Discharge Caution ............................ 15
12.5 Glossary ................................................................ 15
13 Mechanical, Packaging, and Orderable
Information ........................................................... 15
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
DATE
October 2017
REVISION
*
NOTES
Initial release. Moved the automotive device
from the SNIS170 to a standalone data
sheet.
2 Submit Documentation Feedback
Product Folder Links: LMT87-Q1
Copyright © 2017, Texas Instruments Incorporated


Features Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity LMT87-Q1 2.7-V, SC70, Analog Te mperature Sensors With Class-AB Output LMT87-Q1 SNIS202 – OCTOBER 2017 1 F eatures •1 LMT87-Q1 is AEC-Q100 Quali fied for Automotive Applications: – D evice Temperature Grade 0: –40°C to +150°C – Device HBM ESD Classificati on Level 2 – Device CDM ESD Classific ation Level C6 • 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 • Wid e Temperature Range: –50°C to 150°C • Output is Short-Circuit Protected • Push-Pull Output With ±50-µA Driv e Capability • Footprint Compatible W ith the Industry-Standard LM20/19 and L M35 Temperature Sensors • Cost-Effect ive Alternative to Thermistors 2 Applic ations • Automotive • Infotainment and Cluster • Powertrain Systems • Smoke and Heat Detectors • Drones • Appliances 3 Description The LMT87-Q1 device is a precision CMOS temperature sensor with ±0.4°C typical accuracy (±.
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