Automotive Grade, 1.8V-Capable, 10 uA Analog Output Temperature Sensor - LMT85-Q1

LMT85-Q1 (ACTIVE)

Automotive Grade, 1.8V-Capable, 10 uA Analog Output Temperature Sensor

 

Description

The LMT85 and LMT85-Q1 are precision CMOS temperature sensors with ±0.4°C typical accuracy (±2.7°C max) 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 LMT85LPG through-hole TO-92S package fast thermal time constant supports off-board time-temperature sensitive applications such as smoke and heat detectors. 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 and LMT85-Q1 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.

Features

  • 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
  • LMT85LPG (TO-92S package) has a Fast Thermal Time Constant, 10-s Typical (1.2 m/s Airflow)
  • Very Accurate: ±0.4°C Typical
  • Low 1.8-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

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Parametrics Compare all products in Local Analog Temperature Sensors

 
Local Sensor Accuracy (Max) (+/- C)
Operating Temperature Range (C)
Supply Voltage (Min) (V)
Supply Voltage (Max) (V)
Supply Current (Max) (uA)
Sensor Gain (mV/Deg C)
Rating
Special Features
Interface
LMT85-Q1
2.7   
-50 to 150   
1.8   
5.5   
8.1   
-8.2   
Automotive   
Industry standard pinout   
Analog Output   

Other qualified versions of LMT85-Q1

Version Part Number Definition
Catalog LMT85 TI's standard catalog product