Nanopower TMR & Micropower Hall Switches

Extend the life of your battery-powered devices with our integrated Hall-effect sensor ICs. These switches offer low power consumption. They are ideal for use in on/off switching applications and for detection of tampering in utility meters. Using these switches, you may be able to reduce your current consumption significantly by cycling the awake and sleep periods.

We offer unique 3D omnipolar sensor ICs that can detect magnetic fields of either polarity and in any direction. The high sensitivity of these ICs makes them ideal for detecting tampering via magnetic fields in applications such as smart meters, ATMs, gambling/gaming machines, ticket machines, and electronic locks.

Need help finding the right solution?

Visit our portfolio of ultra-low power Hall effect switches and latches for help maximizing battery life while maintaining robust performance in demanding applications.

Low-Voltage Micropower Switches & Latches

 

Nanopower TMR & Micropower Hall Switches Selection Guide

Selection & Solution Guides

Allegro Product Selection Guide (PDF)

Documentation & Resources

Magnetic Sensing: Maximizing Battery Life in Industrial and Consumer Applications
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.
AN296331 - How to Choose the Best Micropower Switch or Latch Magnetic Sensor for Your Application
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.
Maximizing Robust Window Open Detection Systems with Micropower Hall-Effect Switches and Latches
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.
General Applications Using The APS13568
Application Note

General Applications Using The APS13568

AN296238 - In this applicate note, we discuss the use of the APS13568, an integrated circuit that combines an ultra-sensitive, omnipolar, micropower Hall-effect switch with a linear programmable current regulator which can provide up to 150 mA current to drive high brightness LEDs.
Introduction to Hall-Effect Switches and Conversion from Mechanical Switches
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.
Latching Switch Hall-Effect IC Basics
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.
Programming a Back Biased Switch for Proximity Sensing
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.
Micro-Power Position Sensing in Cell Phone Applications
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.
Digital Position Sensor ICs—Continuous-Time to Chopper-Stabilized Cross-Reference Guide 
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.

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