开关和闩锁
业界最全面的磁性开关和锁存器产品组合。
Allegro 提供全面的磁性开关和锁存器系列产品，采用霍尔效应 (Hall-effect) 和 TMR 技术，可实现超低功耗和高可靠性。我们的产品组合包括1D/2D 锁存器、连续时间开关，以及专为汽车、工业和消费类应用定制的解决方案。这些解决方案经过精心设计，具有出色的温度稳定性和抗物理应力能力，可为数字位置感测带来高精度和耐用性。
Documentation & Resources
Guide
APS11900 Programming Guide
This document describes two approaches to programming the APS11900 and should be used as a companion to the product datasheet.
Whitepaper
使用微功耗霍尔开关旨在最 大化开窗检测系统的鲁棒性
让我们来探讨为安全系统设计的一个稳健而有效的开窗检测解决方案的复杂性，尤为重要的是对其底层技术的深入理解。
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
Smart Locks
New keyless, smart locks are emerging and replacing the traditional key deadbolt locks. With this new technology, the key is no longer used, and the deadbolt position is now controlled by the smart lock itself and not the user with their key.
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.
Brochure
颠覆性提升各种现代应用电源效率
Allegro 的微功率磁性霍 开关与 存 感器芯片在 池供 和 能 用中展 了 新潜力。
Application Note
Unipolar 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.
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.
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.
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.
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.
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.
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.