Type

Marking

Ordering Code

Package

TLE4921-5U

215U

SP000013593

PG-SSO-4-1

TLE4921-5U

Dynamic Differential Hall Effect Sensor IC

Data Sheet

5

V 1.1, 2008-01

Bipolar IC

1

Overview

1.1

Features

•

Advanced performance

•

High sensitivity

•

Symmetrical thresholds

•

High piezo resistivity

•

Reduced power consumption

•

South and north pole pre-induction possible

•

AC coupled

•

Digital output signal

•

Two-wire and three-wire configuration possible

•

Large temperature range

•

Large airgap

•

Low cut-off frequency

•

Protection against overvoltage

•

Protection against reversed polarity

•

Output protection against electrical disturbances

The differential Hall Effect sensor TLE4921-5U provides a high sensitivity and a superior

stability over temperature and symmetrical thresholds in order to achieve a stable duty

cycle. TLE4921-5U is particularly suitable for rotational speed detection and timing

applications of ferromagnetic toothed wheels such as anti-lock braking systems,

transmissions, crankshafts, etc. The integrated circuit (based on Hall effect) provides a

digital signal output with frequency proportional to the speed of rotation. Unlike other

rotational sensors differential Hall ICs are not influenced by radial vibration within the

effective airgap of the sensor and require no external signal processing.