Type

Marking

Ordering Code

Package

TLE4923

4923 B

Q62705-K408

PG-SSO-3-6

Bipolar IC

TLE4923

Dynamic Differential Hall Effect Sensor IC

Data Sheet

5

V 1.0, 2005-04

1

Overview

1.1

Features

•

Advanced performance

•

Higher sensitivity

•

Symmetrical thresholds

•

High piezo resistivity

•

Reduced power consumption

•

South and north pole pre-induction possible

•AC coupled

•

Digital output signal

•

Two-wire interface

•

Large temperature range

•

Large airgap

•

Low cut-off frequency

•

Protection against reversed polarity

The differential Hall effect sensor TLE4923 is compatible to the TLE4921-3U, except for

having a 2-wire interface. The TLE4923 provides high sensitivity, a superior stability over

temperature and symmetrical thresholds in order to achieve a stable duty cycle.

TLE4923 is particularly suitable for rotational speed detection and timing applications of

ferromagnetic toothed wheels such as in 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.