TLE4943C中文资料XENSIVTM - TLE4943C 基于霍尔的差速轮速传感器，采用 AK 协议数据手册Infineon规格书

描述 Description

Infineon´s XENSIVTM TLE4943C is an integrated, active magnetic field sensor for wheel speed applications based on Hall technology. Its basic function is to measure the speed of a pole wheel or a ferromagnetic toothed wheel. It has a two wire-current interface using the AK protocol for communication.This protocol provides beside the speed signal additional information as direction of wheel rotation and air gap information. The sensor combines a fast power-up time with a low cut-off frequency. Excellent sensitivity and accuracy combined with its wide operational temperature range makes the sensor ideally suited for harsh automotive requirements. The TLE4943C is additionally provided with an overmolded 1.8nF capacitor for improved EMC performance.

特性 Features

• Two wire current interface according AK protocol
• Hall based principle
• Integrated magnetic field sensor for wheel speed measurement
• Detection of rotation direction
• Additional air-gap information
• Single chip solution
• High sensitivity
• Large operating air-gaps
• Magnetic pre-induction possible
• Automotive qualified temperature ranges from TJ= -40°C to 150°C
• 1.8nF overmolded capacitor
• Wide operating range from 6.5V to 20V
• Green package with lead-free plating

应用 Application

• Wheel speed sensing in harsh automotive environments

简介

TLE4943C属于传感器变送器的磁性传感器-开关（固态）。由制造生产的TLE4943C磁性传感器 - 开关（固态）该系列产品使用固态技术来检测是否存在超过某个特定幅度和/或标示的磁场，并提供指示是否存在此类磁场的双态输出。它们与磁簧开关以及线性或罗盘型固态器件不同，前者通过使用移动机械部件来提供类似的功能，后者提供指示所施加磁场的强度和/或方向的可变输出。