A3163: Hall-Effect Switch for 2-Wire Applications

These parts are discontinued.  Samples are no longer available. For new customers or new applications, please refer to Allegro A1150 Series.

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 diode, quadratic Hall-voltage generator for low offset, temperature compensation circuitry, small-signal amplifier, Schmitt trigger, and a constant-current open-collector output, wired internally for true 2-wire operation. Noise radiation is limited by control of the output current slew rate.

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  • Features and BenefitsFeatures and Benefits
  • PackagingPackaging
  • Technical DocsTechnical Docs
  • NewsNews
  • 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
Pinout Diagram

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Functional Block Diagram Pinout Diagram

Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Compliant
Part Composition /
RoHS Data
Comments Samples Check
Distributor Stock
A3163ELT 3-lead SOT -40°C to 85°C -- View Data Discontinued Contact your
local sales rep
Check stock
A3163ELTTR 3-lead SOT -40°C to 85°C -- View Data Discontinued Contact your
local sales rep
Check stock
A3163EUA 3-lead SIP -40°C to 85°C No View Data Discontinued Contact your
local sales rep
Check stock

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