TLE4943C datasheet(5/48 Pages) INFINEON

5 / 48 page

Product Name

Product Type

Ordering Code

Package

TLE4943C

SP001963054

PG-SSO-2-53

Hall Based Differential Wheel Speed Sensor with AK

Protocol

TLE4943C

Data Sheet

V 1.2, July 2018

Product Description

1.1

Overview

The 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.

1.2

Features

•

Two wire current interface according AK protocol

•

Hall based principle

•

Integrated magnetic field sensor for wheel speed measurement

•

Detection of rotation direction

•

Additional airgap 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

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