描述 Description

The A1699 is an optimized Hall-effect integrated circuit (IC)that provides a user-friendly solution for direction detectionand true zero-speed, digital ring-magnet sensing. The smallpackage can be easily assembled and used in conjunction witha wide variety of target sensing applications.

The IC employs patented algorithms for the special operationalrequirements of automotive transmission applications. Thespeed and direction of the target are communicated through avariable pulse-width output protocol. The A1699 is particularlyadept at handling vibration without sacrificing maximum airgap capability or creating any erroneous direction information.The advanced vibration detection algorithm will systematicallycalibrate the sensor IC on the initial magnetic poles of truetarget rotation and not on vibration, always guaranteeing anaccurate signal in running mode.

Advanced signal processing and innovative algorithms makethe A1699 an ideal solution for a wide range of speed- anddirection-sensing needs.

The A1699 is provided in a 2-pin miniature SIP packagesuffix UB) that is lead (Pb) free, with tin leadframe plating.The UB package includes an IC and capacitor integrated into asingle overmolded package to reduce external EMI protectionrequirements.

Featured Video: Differential Speed Sensor System Solutions Seth Prentice, Strategic Marketing Manager for Allegro MicroSystems Speed Sensor IC group, discusses IC solutions for designing speed sensing applications including automotive transmissions, washing machine drum speeds, and fork lift positioning requiring reliable consistent output signals.Watch Video

特性 Features

? Integrated IC and capacitor, single overmolded package to reduce external EMI-protection requirements
? Two-wire, pulse-width output protocol
? Highly configurable output protocol options
? Digital output representing target profile
? Speed and direction information of target
? Vibration tolerance
? Small-signal lockout for small amplitude vibration
? Proprietary vibration detection algorithms for large amplitude vibration

? Air-gap-independent switchpoints
? Large operating air gap capability
? Undervoltage lockout
? True zero-speed operation
? Wide operating voltage range
? AEC-Q100 automotive qualified
? Robust test-coverage capability with Scan Path and IDDQ measurement

簡介

A1699屬于傳感器變送器的磁性傳感器-開關（固態(tài)）。由制造生產的A1699磁性傳感器 - 開關（固態(tài)）該系列產品使用固態(tài)技術來檢測是否存在超過某個特定幅度和/或標示的磁場，并提供指示是否存在此類磁場的雙態(tài)輸出。它們與磁簧開關以及線性或羅盤型固態(tài)器件不同，前者通過使用移動機械部件來提供類似的功能，后者提供指示所施加磁場的強度和/或方向的可變輸出。