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A1222LLHLT-T - Allegro Microsystems

Description: Chopper-Stabilized Precision Hall-Effect Latches

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Symbol
A1222LLHLT-T - Allegro Microsystems - PCB symbol
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PCB Footprints
A1222LLHLT-T - Allegro Microsystems PCB footprint - Other - Other - LH,3-Pin (SOT-23W)
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3D Models
A1222LLHLT-T - Allegro Microsystems - 3D model - Other - LH,3-Pin (SOT-23W)
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A1222LLHLT-T Details

  • Manufacturer Part Number:

    A1222LLHLT-T

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Manufacturer:

    Allegro MicroSystems LLC

  • YTEOL:

    6

  • Additional Feature:

    REVERSE BATTERY PROTECTION, SHORT-CIRCUIT PROTECTION

  • Body Breadth:

    1.91 mm

  • Body Height:

    1 mm

  • Body Length or Diameter:

    2.98 mm

  • Housing:

    PLASTIC

  • Hysteresis:

    22 mT

  • JESD-609 Code:

    e3

  • Magnetic Field Range-Max:

    15 mT

  • Magnetic Field Range-Min:

    -15 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 Circuit Type:

    SINGLE-ENDED

  • Output Current-Max:

    25 mA

  • Output Range:

    30-60mA

  • Output Type:

    ANALOG 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:

    MATTE TIN

  • Termination Type:

    SOLDER

A1222LLHLT-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.
  • Use a voltage regulator or a voltage clamp circuit to regulate the output voltage. Additionally, consider using a capacitor to filter out any voltage ripples.
  • The A1222LLHLT-T can operate from -40°C to 150°C, but the device's accuracy and reliability may degrade above 125°C. Ensure proper thermal management and heat sinking to maintain optimal performance.
  • Yes, but ensure the device is properly secured to the PCB and consider using a vibration-dampening material to minimize the effects of vibration on the device's performance.
  • Follow the calibration procedure outlined in the datasheet, which involves applying a known magnetic field and adjusting the device's offset and sensitivity settings accordingly.

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A1222LLHLT-T Overview

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