LMT85-Q1 Sensors Datasheet

LMT85-Q1 Datasheet, PDF, Equivalent


Part Number

LMT85-Q1

Description

Analog Temperature Sensors

Manufacture

etcTI

Total Page 22 Pages
Datasheet
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LMT85-Q1 1.8-V, SC70,
Analog Temperature Sensors
LMT85-Q1
SNIS200 – OCTOBER 2017
1 Features
1 LMT85-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 1.8-V Operation
• Average Sensor Gain of -8.2 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
• Infotainment and Cluster
• Powertrain Systems
• Smoke and Heat Detectors
• Drones
• Appliances
3 Description
The LMT85-Q1 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 1.8-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 LMT85-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 LMT85-Q1 suitable
for automotive applications such as infotainment,
cluster, and powertrain systems. The accuracy over
the wide operating range and other features make the
LMT85-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)
LMT85-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 (+1.8V to +5.5V)
VDD
LMT85
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.

LMT85-Q1
LMT85-Q1
SNIS200 – 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 SNIS200 to a standalone data
sheet.
2 Submit Documentation Feedback
Copyright © 2017, Texas Instruments Incorporated


Features Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity LMT85-Q1 1.8-V, SC70, Analog Te mperature Sensors LMT85-Q1 SNIS200 – OCTOBER 2017 1 Features •1 LMT85-Q1 is AEC-Q100 Qualified for Automotive A pplications: – Device Temperature Gra de 0: –40°C to +150°C – Device HB M ESD Classification Level 2 – Device CDM ESD Classification Level C6 • Ve ry Accurate: ±0.4°C Typical • Low 1 .8-V Operation • Average Sensor Gain of -8.2 mV/°C • Low 5.4-µA Quiescen t Current • Wide Temperature Range: 50°C to 150°C • Output is Short-C ircuit Protected • Push-Pull Output W ith ±50-µA Drive Capability • Footp rint Compatible With the Industry-Stand ard LM20/19 and LM35 Temperature Sensor s • Cost-Effective Alternative to The rmistors 2 Applications • Infotainmen t and Cluster • Powertrain Systems Smoke and Heat Detectors • Drones Appliances 3 Description The LMT85- Q1 is a precision CMOS temperature sensor with ±0.4°C typical accuracy (±2.7°C maximum) and a linear analog output .
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