Switches and Latches

Micropower Ultrasensitive Hall-Effect Switch with Configurable Magnetic Actuation

A1171

The A1171 is an ultrasensitive Hall-effect switch ideal for battery-powered applications, with low power consumption, configurable magnetic actuation (unipolar, omnipolar), and push-pull outputs for simplified design.

Download Datasheet

Product Details

Top Features

  • 1.65 to 3.5 V battery operation
  • Low supply current
  • High sensitivity, BOP typically 30 G (3.0 mT)
  • Operation with either north or south pole
  • Configurable unipolar or omnipolar magnetic sensing
  • Complementary, push-pull outputs
  • Chopper stabilized
    • Superior temperature stability
    • Extremely low switchpoint drift
    • Insensitive to physical stress
  • Solid state reliability
  • Small size
Target Application

Part Number Specifications and Availability

Design Tools

ECAD FILE

A1171

A1171 ECAD Model Type Image
Webpage

Software Portal

Technical Documentation

Allegro Microsystems - Chemical Exposure of Devices
Application Note

Allegro Microsystems - Chemical Exposure of Devices

Handling, Storage, and Shelf Life of Semiconductor Devices
Application Note

Handling, Storage, and Shelf Life of Semiconductor Devices

Micro-Power Position Sensing in Cell Phone Applications
Application Note

Micro-Power Position Sensing in Cell Phone Applications

Omnipolar Switch Hall-Effect IC Basics
Application Note

Omnipolar Switch Hall-Effect IC Basics

Vertical Hall Technology Enables Effective Tamper Detection
Application Note

Vertical Hall Technology Enables Effective Tamper Detection

Guidelines for Designing Subassemblies Using Hall-Effect Devices
Guide

Guidelines for Designing Subassemblies Using Hall-Effect Devices

Hall-Effect IC Applications Guide
Guide

Hall-Effect IC Applications Guide

Soldering Methods for Allegro Products (SMD and Through-Hole)
Technical Article

Soldering Methods for Allegro Products (SMD and Through-Hole)

Showing 4 of 8