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A1103LLHLT-T - Allegro Microsystems

Description: Continuous-Time Switch Unipolar Switch

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A1103LLHLT-T - Allegro Microsystems - PCB symbol
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PCB Footprints
A1103LLHLT-T - Allegro Microsystems PCB footprint - SOT23 (3-Pin) - SOT23 (3-Pin) - LH, 3-Pin (SOT-23W)_2022
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3D Models
A1103LLHLT-T - Allegro Microsystems - 3D model - SOT23 (3-Pin) - LH, 3-Pin (SOT-23W)_2022
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A1103LLHLT-T Details

  • Manufacturer Part Number:

    A1103LLHLT-T

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOT-23

  • Package Description:

    SOT-23, 3 PIN

  • Pin Count:

    3

  • Manufacturer:

    Allegro MicroSystems LLC

  • YTEOL:

    6

  • Additional Feature:

    REVERSE BATTERY PROTECTION

  • Body Breadth:

    1.91 mm

  • Body Height:

    0.95 mm

  • Body Length or Diameter:

    2.98 mm

  • Housing:

    PLASTIC

  • Hysteresis:

    5.5 mT

  • Magnetic Field Range-Max:

    35.5 mT

  • Magnetic Field Range-Min:

    1.5 mT

  • Mounting Feature:

    SURFACE MOUNT

  • Number of Terminals:

    3

  • Operating Current-Max:

    7.5 mA

  • Operating Temperature-Max:

    150 °C

  • Operating Temperature-Min:

    -40 °C

  • Output:

    OPEN-DRAIN

  • Output Circuit Type:

    OPEN-DRAIN

  • Output Range:

    400mV

  • Output Type:

    VOLTAGE OUTPUT

  • Package Equivalence Code:

    TO-236

  • Package Shape/Style:

    RECTANGULAR

  • Screening Level:

    AEC-Q100

  • Sensors/Transducers Type:

    MAGNETIC FIELD SENSOR,HALL EFFECT

  • Supply Voltage-Max:

    24 V

  • Supply Voltage-Min:

    3.8 V

  • Surface Mount:

    YES

  • Technology:

    BICMOS

  • Terminal Finish:

    MATTE TIN

  • Termination Type:

    SOLDER

A1103LLHLT-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 A1103LLHLT-T is proportional to the input current. 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 A1103LLHLT-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.
  • Calibration involves trimming the device's internal offset and gain using external resistors. Allegro provides a calibration procedure in their application note AN296055.
  • Use a 10uF ceramic capacitor and a 1uF ceramic capacitor in parallel, placed as close as possible to the device's power pins, to ensure stable operation and minimize noise.

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A1103LLHLT-T Overview

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