LMT01DQXT
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Texas Instruments LMT01DQXT

Manufacturer No:
LMT01DQXT
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
SENSOR DIGITAL -50C-150C 2WSON
Delivery:
Payment:
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Product Introduction

Overview

The LMT01DQXT, produced by Texas Instruments, is a high-accuracy, 2-pin digital output temperature sensor. This device is designed for precision temperature measurement and features a pulse count current loop interface, making it highly suitable for various applications in automotive, industrial, and consumer markets. The LMT01DQXT achieves a maximum ±0.5°C accuracy over a temperature range of –20°C to 90°C, with a fine resolution of 0.0625°C, all without the need for system calibration or hardware and software compensation.

Key Specifications

Parameter Minimum Typical Maximum Unit
Temperature Range –50 150 °C
Accuracy (–20°C to 90°C) ±0.5 °C
Accuracy (90°C to 150°C) ±0.625 °C
Accuracy (–50°C to –20°C) ±0.7 °C
Resolution 0.0625 °C
Communication Frequency 88 kHz
Conversion Current 34 µA
Continuous Conversion Plus Data-Transmission Period 100 ms
Supply Voltage (VP – VN) 2 5.5 V
Package Types TO-92/LPG, WSON/DQX

Key Features

  • Precision Digital Temperature Measurement: Simplified in a compact 2-pin package with high accuracy over a wide temperature range.
  • Pulse Count Current Loop Interface: Easily read by a processor, with the number of output pulses proportional to temperature.
  • Integrated EMI Immunity: Ensures reliable operation in noisy environments.
  • Flexible Supply Operation: Floating 2-V to 5.5-V (VP–VN) supply operation.
  • Compact Packaging: Multiple 2-pin package offerings, including TO-92/LPG and WSON/DQX, which are smaller than traditional TO-92 packages.
  • Easy Conversion to Two-Wire Probe: Can be converted into a two-wire temperature probe with a wire length up to two meters.

Applications

  • Digital Output Wired Probes: Suitable for precise temperature measurement in various probe configurations.
  • White Goods: Used in household appliances for temperature monitoring.
  • HVAC Systems: Employed in heating, ventilation, and air conditioning systems for temperature control.
  • Power Supplies: Utilized for temperature monitoring in power supply units.
  • Battery Management: Applied in battery management systems to monitor temperature.

Q & A

  1. What is the temperature accuracy of the LMT01DQXT over the range of –20°C to 90°C?

    The temperature accuracy is ±0.5°C over this range.

  2. What is the resolution of the LMT01DQXT temperature sensor?

    The resolution is 0.0625°C.

  3. What is the communication frequency of the LMT01DQXT?

    The communication frequency is 88 kHz.

  4. What is the typical conversion current of the LMT01DQXT?

    The typical conversion current is 34 µA.

  5. What are the available package types for the LMT01DQXT?

    The available package types are TO-92/LPG and WSON/DQX.

  6. Can the LMT01DQXT be used in noisy environments?

    Yes, it has integrated EMI immunity, making it suitable for use in noisy environments.

  7. What is the maximum wire length for converting the LMT01DQXT into a two-wire temperature probe?

    The maximum wire length is up to two meters.

  8. Is the LMT01DQXT suitable for automotive applications?

    For automotive applications, the LMT01-Q1 version is recommended, which is the automotive-qualified version of the LMT01.

  9. What is the supply voltage range for the LMT01DQXT?

    The supply voltage range is from 2 V to 5.5 V (VP – VN).

  10. How often does the LMT01DQXT perform temperature conversions and data transmission?

    The LMT01DQXT performs continuous conversion plus data-transmission every 100 ms.

Product Attributes

Sensor Type:Digital, Local
Sensing Temperature - Local:-50°C ~ 150°C
Sensing Temperature - Remote:- 
Output Type:PWM
Voltage - Supply:2V ~ 5.5V
Resolution:0.0625°C
Features:- 
Accuracy - Highest (Lowest):±0.5°C (±0.625°C)
Test Condition:-20°C ~ 90°C (-50°C)
Operating Temperature:-50°C ~ 150°C
Mounting Type:Surface Mount, Wettable Flank
Package / Case:2-WDFN
Supplier Device Package:2-WSON (1.7x2.5)
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