Product details

Local sensor accuracy (Max) (+/- C) 2.7 Operating temperature range (C) -50 to 150 Supply voltage (Min) (V) 1.5 Supply voltage (Max) (V) 5.5 Supply current (Max) (uA) 8.1 Interface type Analog output Sensor gain (mV/Deg C) -5.5 Rating Automotive Features Industry standard pinout
Local sensor accuracy (Max) (+/- C) 2.7 Operating temperature range (C) -50 to 150 Supply voltage (Min) (V) 1.5 Supply voltage (Max) (V) 5.5 Supply current (Max) (uA) 8.1 Interface type Analog output Sensor gain (mV/Deg C) -5.5 Rating Automotive Features Industry standard pinout
SOT-SC70 (DCK) 5 4 mm² 2 x 2.1
  • LMT84-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 1.5-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
  • LMT84-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 1.5-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

The LMT84-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 1.5-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 LMT84-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 LMT84-Q1 suitable for automotive applications such as infotainment, cluster, and powertrain systems. The accuracy over the wide operating range and other features make the LMT84-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.

The LMT84-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 1.5-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 LMT84-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 LMT84-Q1 suitable for automotive applications such as infotainment, cluster, and powertrain systems. The accuracy over the wide operating range and other features make the LMT84-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.

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Technical documentation

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Type Title Date
* Data sheet LMT84-Q1 1.5-V, SC70, Analog Temperature Sensors datasheet 20 Oct 2017
Technical article How to choose the right thermistor for your temperature sensing application 13 Feb 2020
Technical article How to enable thermal safety for automotive infotainment and cluster systems 15 Oct 2019
Technical article Driving industrial innovation with small-size sensors 12 Sep 2019
Application note SC Temp Sensors Challenge Precision RTDs and Thermistors in Build Automation (Rev. A) 08 May 2019
Technical article How to select a temperature sensor probe 18 Feb 2016

Design & development

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LMT84 Look-Up Table

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Reference designs

TIDA-01184 — Smart Power Switch for Seat Heater Reference Design

This reference design showcases the TPS1HA08-Q1 device, which is used to control an automotive seat heater. The system consists of a main board and heating element, which represents the resistive heating component found in automotive seat heaters. This system demonstrates the ability to (...)
Reference designs

TIDA-00282 — Automotive Digitally Controlled Boost Power Supply

This TI reference design is an automotive voltage boost converter module. The purpose of this module is to supply a steady voltage to vehicle electronics by boosting during voltage droop events such as engine crank. The design is based on the C2000 Real-Time Microcontroller, and will provide up to (...)
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