Application Note

AN296331 - How to Choose the Best Micropower Switch or Latch Magnetic Sensor for Your Application

This application note discusses the fundamental principles that govern micropower switch and latch magnetic sensors.

OnDemand Webinar

Magnetic Sensing: Maximizing Battery Life in Industrial and Consumer Applications

Join our webinar for a refresher on magnetic sensing technologies and an exploration of the latest technical innovations aimed at reducing power consumption in these versatile, reliable, and high-performance solid-state sensors.

Blog

Switches vs. Latches: Understanding the Key Differences and Their Applications

Discover how Hall-effect switches and latches, essential magnetic sensors, power smartphones, industrial equipment, automotive systems, and DC motors. Learn their differences and applications in this insightful blog post.

Whitepaper

Maximizing Robust Window Open Detection Systems with Micropower Hall-Effect Switches and Latches

Let's explore the intricacies of designing a robust and effective window open detection solution for security systems.

Application Note

AN296330 - Selecting the Right Magnetic Switch or Latch for Your Application

This application note is intended to provide a step-by-step process to help designers pick the right Allegro switch or latch part for their specific application.

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.

Blog

The Power of Precision: Revolutionizing Switches and Latches with TMR Technology

This blog explores the benefits of TMR technology for switches and latches, highlighting how it's transforming these essential components.

Application Note

Air-Gap-Independent Speed and Direction Sensing Using the Allegro A1262

The A1262 integrated circuit is an ultrasensitive dual-channel Hall-effect latch. As with conventional dual-channel latches, the quadrature outputs of the A1262 indicate rotation direction and position/speed of a rotating ring magnet target.

Application Note

Micro-Power Position Sensing in Cell Phone Applications

This note will show how to use the Allegro™ A1171 in a standard flip or slide phone, as well as techniques for sensing three positions using only one magnet and one Hall device in a multipurpose application.

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

Improved Speed and Direction Sensing Using Vertical Hall Technology

The A1262 2D dual-channel Hall-effect sensor IC is offered in a 5-pin SOT23W surface-mount package, as well as a 4-pin SIP through-hole package. It features operation with traditional planar—as well as vertical—magnetic field direction.

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.

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

Ring Magnet Speed Sensing for Electronic Power Steering

Proper control of Electric Power Steering (EPS) systems requires both speed and direction information from the steering input shaft. This control will typically come from both high-resolution speed information and fairly coarse position information.

Application Note

Programming a Back Biased Switch for Proximity Sensing

This application note assumes the user is programming an Allegro fully integrated back biased Hall effect switch or that the user has designed an appropriate magnetic circuit to accommodate the programming range of a programmable unipolar Hall effect switch.