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LM57TQPWQ1 - Texas Instruments

Description: Automotive Grade, ±0.7°C Temperature Sensor with Resistor-Programmable Temp Switch

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LM57TQPWQ1 - Texas Instruments - PCB symbol
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PCB Footprints
LM57TQPWQ1 - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - PW0008A
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LM57TQPWQ1 - Texas Instruments - 3D model - Small Outline Packages - PW0008A
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LM57TQPWQ1 Details

  • Manufacturer Part Number:

    LM57TQPWQ1

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.01

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Accuracy-Max (Cel):

    1.3 Cel

  • Body Breadth:

    3 mm

  • Body Height:

    1.2 mm

  • Body Length or Diameter:

    4.4 mm

  • Housing:

    PLASTIC

  • Mounting Feature:

    SURFACE MOUNT

  • Number of Terminals:

    8

  • Operating Current-Max:

    0.028 mA

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -50 °C

  • Package Equivalence Code:

    TSSOP8,.25

  • Package Shape/Style:

    RECTANGULAR

  • Screening Level:

    AEC-Q100

  • Sensors/Transducers Type:

    TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SINGLE TRIP POINT

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    2.4 V

  • Surface Mount:

    YES

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Termination Type:

    SOLDER

LM57TQPWQ1 Frequently Asked Questions (FAQs)

  • Texas Instruments recommends a 2-layer or 4-layer PCB with a solid ground plane on the bottom layer and a thermal relief pattern on the top layer to ensure good thermal conductivity. A minimum of 2 oz copper thickness is recommended for the thermal pad.
  • To ensure accurate temperature measurement, it is essential to provide a good thermal connection between the LM57 and the target device or surface. Use a thermally conductive adhesive or thermal tape to attach the LM57 to the target device, and ensure that the thermal pad is soldered to a solid ground plane on the PCB.
  • The maximum allowed voltage on the VCC pin is 5.5V. Exceeding this voltage may damage the device. It is recommended to use a voltage regulator or a voltage clamp to ensure that the VCC pin does not exceed 5.5V.
  • When the temperature is below -20°C, the output voltage of the LM57 may be higher than the specified range. In this case, it is recommended to use a voltage clamp or a Schmitt trigger circuit to ensure that the output voltage is within the specified range.
  • The recommended clock frequency for the I2C interface is 100 kHz to 400 kHz. However, the LM57 can operate up to 1 MHz clock frequency. It is recommended to use a clock frequency that is compatible with the system requirements and ensures reliable data transfer.

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LM57TQPWQ1 Overview

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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LM57TQPWQ1 Alternates

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Part Image LM57TQPWRQ1 Texas Instruments

Single Trip Point Switch/Digital Sensor, 1.3Cel, Rectangular, 8 Pin, Surface Mount