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A3163 - Hall Effect Switch

General Description

Operation.

The output of these devices turns on when a magnetic field (south pole) perpendicular to the Hall element exceeds the operate point threshold (BOP).

After turn on, the output will source current (IOUT(H)) equal to the device operating current plus a current source.

Key Features

  • Internal Current Regulator for 2-Wire Operation.
  • Output Slew Rate Controlled.
  • 3.5 V to 24 V Operation … Needs Only An Unregulated Supply.
  • Reverse Battery Protection.
  • Excellent Temperature Stability.
  • Activate with Small, Commercially Available Permanent Magnets.
  • Small Size.
  • Solid-State Reliability … No Moving Parts.
  • Resistant to Physical Stress Always order by complete part number, e. g. , A3163ELT . 3163 HALL-EFFECT SWITCH FOR 2-WIRE.

📥 Download Datasheet

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Other Datasheets by Allegro MicroSystems

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Data Sheet 27621.31a X Suffix 'UA' Pinning (ultra-mini SIP) 1 2 3 3163 HALL-EFFECT SWITCH FOR 2-WIRE APPLICATIONS This Hall-effect switch is a monolithic integrated circuit designed to operate continuously over extended temperatures to +85°C. The unipolar switching characteristic makes this device ideal for use with a simple bar or rod magnet. The A3163ELT and A3163EUA are identical except for package. Each device includes a voltage regulator for operation with supply voltages of 3.5 to 24 volts, reverse-battery protection, quadratic Hallvoltage generator for low offset, temperature compensation circuitry, small-signal amplifier, Schmitt trigger, and a constant-current opencollector output, wired internally for true 2-wire operation.