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LMT84 Dataheets PDF



Part Number LMT84
Manufacturers Texas Instruments
Logo Texas Instruments
Description Analog Temperature Sensors
Datasheet LMT84 DatasheetLMT84 Datasheet (PDF)

Product Folder Order Now Technical Documents Tools & Software Support & Community LMT84 SNIS167E – MARCH 2013 – REVISED OCTOBER 2017 LMT84 1.5-V, SC70/TO-92/TO-92S, Analog Temperature Sensors 1 Features •1 LMT84LPG (TO-92S package) has a Fast Thermal Time Constant, 10-s Typical (1.2 m/s Airflow) • Very Accurate: ±0.4°C Typical • Low 1.5-V Operation • Average Sensor Gain of -5.5 mV/°C • Low 5.4-µA Quiescent Current • Wide Temperature Range: –50°C to 150°C • Output is Short-Circuit Protected.

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Product Folder Order Now Technical Documents Tools & Software Support & Community LMT84 SNIS167E – MARCH 2013 – REVISED OCTOBER 2017 LMT84 1.5-V, SC70/TO-92/TO-92S, Analog Temperature Sensors 1 Features •1 LMT84LPG (TO-92S package) has a Fast Thermal Time Constant, 10-s Typical (1.2 m/s Airflow) • Very Accurate: ±0.4°C Typical • Low 1.5-V Operation • Average Sensor Gain of -5.5 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 LMT84 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 1.5-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 LMT84LPG through-hole TO-92S package fast thermal time constant supports offboard time-temperature sensitive applications such as smoke and heat detectors. The accuracy over the wide operating range and other features make the LMT84 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) SOT (5) 2.00 mm x 1.25 mm LMT84 TO-92 (3) 4.30 mm x 3.50 mm TO-92S (3) 4.00 mm x 3.15 mm (1) For all available packages, see the orderable addendum addendum at the end of the data sheet. FINAL TEMPERATURE 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 (+1.5V to +5.5V) VDD LMT84 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. LMT84 SNIS167E – MARCH 2013 – REVISED 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 ......................... 4 7 Specifications......................................................... 5 7.1 Absolute Maximum Ratings ...................................... 5 7.2 ESD Ratings.............................................................. 5 7.3 Recommended Operating Conditions....................... 5 7.4 Thermal Information .................................................. 5 7.5 Accuracy Characteristics........................................... 6 7.6 Electrical Characteristics........................................... 6 7.7 Typical Characteristics .............................................. 7 8 Detailed Description .............................................. 9 8.1 Overview ................................................................... 9 8.2 Functional Block Diagram ......................................... 9 8.3 Feature Description................................................... 9 8.4 Device Functional Modes........................................ 11 9 Application and Implementation ........................ 13 9.1 Applications Information.......................................... 13 9.2 Typical Applications ................................................ 13 10 Power Supply Recommendations ..................... 14 11 Layout................................................................... 15 11.1 Layout Guidelines ................................................. 15 11.2 Layout Examples................................................... 15 12 Device and Documentation Support ................. 16 12.1 Receiving Notification of Documentation Updates 16 12.2 Community Resources.......................................... 16 12.3 Trademarks ........................................................... 16 12.4 Electrostatic Discharge Caution ............................ 16 12.5 Glossary ................................................................ 16 13 Mechanical, Packaging, and Orderable Information ........................................................... 16 4 Revision History .


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