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Digitale Temperatursensoren

LMT01-Q1

AKTIV

Temperatursensor, Automotive Grade, 0,5 °C Genauigkeit, 2-Pin, mit einer Pulse-Train-Schnittstelle

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Datenblatt

LMT01-Q1

AKTIV
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Produktdetails

Local sensor accuracy (max) 0.5 Type Local Operating temperature range (°C) -40 to 150 Supply voltage (min) (V) 2 Interface type Pulse Count Supply voltage (max) (V) 5.5 Supply current (max) (µA) 39 Temp resolution (max) (Bits) 13 Remote channels (#) 0 Rating Automotive
Local sensor accuracy (max) 0.5 Type Local Operating temperature range (°C) -40 to 150 Supply voltage (min) (V) 2 Interface type Pulse Count Supply voltage (max) (V) 5.5 Supply current (max) (µA) 39 Temp resolution (max) (Bits) 13 Remote channels (#) 0 Rating Automotive
TO-92 (LPG) 2 6.08 mm² 4 x 1.52 WSON (DQX) 2 3.4 mm² 2 x 1.7
  • 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
  • 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

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.

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.

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Technische Dokumentation

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* Data sheet LMT01-Q1 0.5°C Accurate 2-Pin Digital Output Temperature Sensor With Pulse Count Interface datasheet (Rev. C) PDF | HTML 01 Jun 2018
Technical article How to maximize powertrain efficiency and reliability with high-accuracy temperatu PDF | HTML 10 Mai 2021
Technical article How to use temperature sensors to protect an automotive transmission PDF | HTML 31 Mai 2018

Design und Entwicklung

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