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A1126LLHLX-T - Allegro Microsystems

Description: Chopper-Stabilized Omnipolar Hall-Effect Switch

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A1126LLHLX-T - Allegro Microsystems - PCB symbol
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PCB Footprints
A1126LLHLX-T - Allegro Microsystems PCB footprint - SOT23 (3-Pin) - SOT23 (3-Pin) - A1101ELHLT-T
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3D Models
A1126LLHLX-T - Allegro Microsystems - 3D model - SOT23 (3-Pin) - A1101ELHLT-T
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A1126LLHLX-T Details

  • Manufacturer Part Number:

    A1126LLHLX-T

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    SOT-23, 3 PIN

  • Manufacturer:

    Allegro MicroSystems LLC

  • YTEOL:

    6

  • Body Breadth:

    1.91 mm

  • Body Height:

    1 mm

  • Body Length or Diameter:

    2.98 mm

  • Housing:

    PLASTIC

  • Hysteresis:

    3 mT

  • Input Mode:

    UNIPOLAR

  • JESD-609 Code:

    e3

  • Magnetic Field Range-Max:

    5.5 mT

  • Magnetic Field Range-Min:

    0.5 mT

  • Mounting Feature:

    SURFACE MOUNT

  • Number of Terminals:

    3

  • Operating Current-Max:

    4 mA

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output:

    OPEN-DRAIN

  • Output Current-Max:

    60 mA

  • Output Polarity:

    INVERTING

  • Output Range:

    30-60mA

  • Output Type:

    DIGITAL CURRENT

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Equivalence Code:

    TO-236

  • Package Shape/Style:

    RECTANGULAR

  • Sensors/Transducers Type:

    MAGNETIC FIELD SENSOR,HALL EFFECT

  • Supply Voltage-Max:

    24 V

  • Supply Voltage-Min:

    3 V

  • Surface Mount:

    YES

  • Technology:

    BICMOS

  • Terminal Finish:

    Tin (Sn)

  • Termination Type:

    SOLDER

A1126LLHLX-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 AN296055.
  • The output voltage swing of the A1126LLHLX-T is proportional to the current sensed. To ensure accurate current sensing, use a voltage reference and an ADC with a high common-mode rejection ratio to reject noise and interference.
  • The A1126LLHLX-T is rated for operation from -40°C to 150°C. However, the device may still function outside this range, but with reduced accuracy and reliability.
  • Use a shielded enclosure, keep the device away from high-current carrying conductors, and use a common-mode choke or ferrite bead to filter out high-frequency noise.
  • A simple POR circuit using a resistor, capacitor, and diode can be used to ensure the device powers up correctly. Allegro provides a reference design in their application note AN296055.

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A1126LLHLX-T Overview

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