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A4447SLJTR-T Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
A4447SLJTR-TALLEGRO 3000Yes

A4447SLJTR-T** is a Hall-effect sensor manufactured by **Allegro MicroSystems**.

The A4447SLJTR-T is a Hall-effect sensor manufactured by Allegro MicroSystems. Below are its key specifications, descriptions, and features:

Specifications:

  • Supply Voltage Range: 3.8V to 24V
  • Output Type: Open-drain, 50mA sink capability
  • Operating Temperature Range: -40°C to +150°C
  • Output Rise/Fall Time: 1μs (typical)
  • Quiescent Current: 6mA (typical)
  • Magnetic Sensitivity: BOP (Operate Point) = 35G (typical), BRP (Release Point) = 25G (typical)
  • Package: 3-pin SIP (Single In-line Package)

Descriptions:

  • The A4447SLJTR-T is a high-temperature, Hall-effect latch designed for automotive and industrial applications.
  • It provides a digital output that switches in response to changes in magnetic polarity.
  • The device is AEC-Q100 qualified, making it suitable for automotive environments.
  • It includes reverse battery protection and is resistant to physical stress.

Features:

  • High-temperature operation up to 150°C
  • Reverse battery protection (-24V)
  • Robust ESD protection (±8kV HBM)
  • Fast power-on time (<10μs)
  • Open-drain output for easy interfacing
  • Latching behavior (responds to alternating magnetic fields)

This sensor is commonly used in position sensing, speed detection, and brushless DC motor commutation in automotive and industrial systems.

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