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A1309LLHLX-9-T - Allegro Microsystems

Description: Linear Hall-Effect Sensor IC With Analog Output

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A1309LLHLX-9-T - Allegro Microsystems - PCB symbol
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PCB Footprints
A1309LLHLX-9-T - Allegro Microsystems PCB footprint - SOT23 (3-Pin) - SOT23 (3-Pin) - LH,3-Pin SOT23W
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3D Models
A1309LLHLX-9-T - Allegro Microsystems - 3D model - SOT23 (3-Pin) - LH,3-Pin SOT23W
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A1309LLHLX-9-T Details

  • Manufacturer Part Number:

    A1309LLHLX-9-T

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    SOT-23W, 3 PIN

  • Date Of Intro:

    2017-03-01

  • Manufacturer:

    Allegro MicroSystems LLC

  • YTEOL:

    7

  • Additional Feature:

    IT HAS SENSITIVITY OF 9 MILLIVOLT PER GAUSS

  • Body Breadth:

    1.91 mm

  • Body Height:

    1 mm

  • Body Length or Diameter:

    2.98 mm

  • Housing:

    PLASTIC

  • JESD-609 Code:

    e3

  • Mounting Feature:

    SURFACE MOUNT

  • Number of Terminals:

    3

  • Operating Current-Max:

    11.5 mA

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Type:

    ANALOG VOLTAGE

  • Package Equivalence Code:

    TO-236

  • Package Shape/Style:

    RECTANGULAR

  • Resistance:

    3 Ω

  • Sensitivity (mV/G):

    9 mV/G

  • Sensors/Transducers Type:

    MAGNETIC FIELD SENSOR,HALL EFFECT

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    4.5 V

  • Surface Mount:

    YES

  • Technology:

    BICMOS

  • Terminal Finish:

    MATTE TIN

  • Termination Type:

    SOLDER

A1309LLHLX-9-T Frequently Asked Questions (FAQs)

  • A symmetrical layout with a central ground plane and minimal signal trace length is recommended. Allegro provides a reference layout in their application note AN296070.
  • The output voltage swing can be adjusted using the VREF pin. A voltage reference of 1.65V to 3.3V can be applied to the VREF pin to set the output voltage swing. Additionally, an external amplifier or ADC can be used to condition the output signal.
  • The recommended operating temperature range for the A1309LLHLX-9-T is -40°C to 150°C. However, the device can operate up to 175°C with reduced accuracy and reliability.
  • Calibration involves adjusting the offset and sensitivity of the device. Allegro provides a calibration procedure in their application note AN296070, which involves applying a known magnetic field and adjusting the offset and sensitivity registers accordingly.
  • The A1309LLHLX-9-T can measure magnetic fields up to ±1300 Gauss. However, the device can be damaged if exposed to magnetic fields exceeding ±2000 Gauss.

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A1309LLHLX-9-T Overview

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