スイッチとラッチ
業界で最も幅広い磁気スイッチおよびラッチのポートフォリオ。
Allegroは、超低消費電力と高信頼性を実現するHall-effectおよびTMR技術を特長とする、包括的な磁気スイッチおよびラッチの製品群を提供しています。当社のポートフォリオには、1Dおよび2Dラッチ、連続時間型スイッチ、ならびに車載、産業、民生用アプリケーション向けに最適化されたソリューションが含まれます。優れた温度安定性と物理的ストレスへの耐性を備えたこれらのソリューションは、デジタル位置検出に高精度と高耐久性をもたらします。
Documentation & Resources
Application Note
Introduction to Hall-Effect Switches and Conversion from Mechanical Switches
AN296192 - This application note will discuss the technical considerations necessary to aid with the replacement of an on/off mechanical switch with a Hall-effect switch.
Application Note
TMR Digital Latches in Point-Level Liquid Sensors
Liquid-level sensors are used in a variety of applications in the industrial and consumer marketplace and play a vital role in providing the necessary data to the host system.
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.
Guide
APS11900 Programming Guide
This document describes two approaches to programming the APS11900 and should be used as a companion to the product datasheet.