1 Features

• 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

2 Applications

• Automotive
• Infotainment and Cluster
• Powertrain Systems
• Smoke and Heat Detectors
• Drones
• Appliances

3 Description

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.

Thermal Time Constant

* Fast thermal response NTC

Output Voltage vs Temperature