LMT01-Q1 Automotive Grade, 0.5°C Accurate 2-pin Temperature Sensor with a Pulse Train Interface | TI.com

LMT01-Q1 (ACTIVE) Automotive Grade, 0.5°C Accurate 2-pin Temperature Sensor with a Pulse Train Interface

 

Description

The LMT01-Q1 device is a high-accuracy, 2-pin temperature sensor with an easy-to-use pulse count current loop interface, which makes it suitable for onboard and offboard applications in automotive, industrial, and consumer markets. The LMT01-Q1 digital pulse count output and high accuracy over a wide temperature range allow pairing with any MCU without concern for integrated ADC quality or availability, while minimizing software overhead. TI’s LMT01-Q1 device achieves a maximum ±0.5°C accuracy with very fine resolution (0.0625°C) over a temperature range of –20°C to 90°C without system calibration or hardware and software compensation.

The LMT01-Q1’s pulse count interface is designed to directly interface with a GPIO or comparator input, thereby simplifying hardware implementation. Similarly, the LMT01-Q1’s integrated EMI suppression and simple 2-pin architecture makes it suitable for onboard and offboard temperature sensing in a noisy environment. The LMT01-Q1 device can be easily converted into a two-wire temperature probe with a wire length up to two meters.

Features

  • AEC-Q100 Qualified With the Following Results:
    • Temperature Grade 0 (E): –40°C to +150°C (2)
    • Temperature Grade 1 (Q): –40°C to +125°C
    • HBM ESD Component Classification Level 2
    • CDM ESD Component Classification Level C5
  • High Accuracy Over –40°C to 150°C Wide Temperature Range
    • –20°C to 90°C: ±0.5°C (Maximum)
    • 90°C to 120°C: ±0.625°C (Maximum)
    • –40°C to –20°C: ±0.625°C (Maximum)
  • Precision Digital Temperature Measurement Simplified in a 2-Pin Package
  • Pulse Count Current Loop Easily Read by Processor. Pulse Count Proportional to Temperature With 0.0625°C Resolution
  • Communication Frequency: 88 kHz
  • Conversion Current: 34 µA
  • Continuous Temperature Update Every 100 ms
  • Floating 2-V to 5.5-V (VP–VN) Supply Operation With Integrated EMI Immunity
  • Multiple 2-Pin Package Offerings: TO-92/LPG (3.1 mm × 4 mm × 1.5 mm) – ½ the Size of Traditional TO-92 and WSON With Wettable Flanks

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Parametrics

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Part number Order Device type Interface Local sensor accuracy (Max) (+/- C) Temp resolution (Max) (bits) Operating temperature range (C) Supply voltage (Min) (V) Supply voltage (Max) (V) Supply current (Max) (uA) Features Remote channels (#) Addresses Rating Package Group Package size: mm2:W x L (PKG)
LMT01-Q1 Order now Local     Pulse Count     0.5     13     -40 to 125
-40 to 150    
2     5.5     39     2 pin package     0         Automotive     TO-92 | 2
WSON | 2    
2TO-92: 6 mm2: 1.52 x 4 (TO-92 | 2)
2WSON: 3 mm2: 1.7 x 2 (WSON | 2)    
TMP107 Order now Local     UART     0.4     14     -55 to 125     1.7     5.5     35     Shutdown     0     32     Catalog     SOIC | 8     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)