Two-Wire Hall-Effect Switches
OEMs and tier one providers choose from our broad portfolio of two-wire sensors for applications like seat belt buckles, seat track and occupant sensor.
You can trust our safety and performance, too. Allegro Hall switches offer ISO 26262 compliance for automotive safety systems, industry-leading ESD and EMC performance, as well as 4× chopper stabilization for superior temperature stability and resistance to physical stress.
You can trust our safety and performance, too. Allegro Hall switches offer ISO 26262 compliance for automotive safety systems, industry-leading ESD and EMC performance, as well as 4× chopper stabilization for superior temperature stability and resistance to physical stress.
Solutions using temperature switches, Hall-effect switches, and magnetic sensor IC switches
Selection & Solution Guides
Allegro Product Selection Guide (PDF)
Documentation & Resources
Application Note
Two-and-Three-Wire-Sensor-Interfaces
AN296233 - Electrical interfaces for active sensor integrated circuits (ICs) include both two-wire and three-wire interfaces. These two technology styles are named for the number of required connections needed to communicate the sensor output. This application note discusses use and tradeoffs of both interface styles.
Guide
APS11900 Programming Guide
This document describes two approaches to programming the APS11900 and should be used as a companion to the product datasheet.
Application Note
Latching Switch Hall-Effect IC Basics
There are four general categories of Hall-effect IC devices that provide a digital output: unipolar switches, bipolar switches, omnipolar switches, and latches. Latching Hall-effect sensor ICs, often referred to as "latches," are digital output Hall-effect switches that latch output states.
Application Note
Vehicle Safety Systems
Occupant safety is one of the most critical elements of the automobile design. As a result, safety systems continue to become more sophisticated in order to limit, and ultimately prevent, personal injury in the case of an accident.
Application Note
Digital Position Sensor ICs—Continuous-Time to Chopper-Stabilized Cross-Reference Guide
This application guide will outline the differences between the two sensor types and provide system designers with the tools needed in order to select the appropriate sensor for their system.