TLE4923HALA1

TLE4923HALA1 Datasheet

TLE4923

Part	Datasheet
TLE4923HALA1	TLE4923HALA1 (pdf)

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Data Sheet, V April 2005 TLE4923 Dynamic Differential Hall Effect Sensor IC Sensors Never stop thinking. Edition 2005-04 Published by Infineon Technologies AG, St.-Martin-Strasse 53, 81669 München, Germany Infineon Technologies AG All Rights Reserved. Attention please! The information herein is given to describe certain components and shall not be considered as a guarantee of characteristics. Terms of delivery and rights to technical change reserved. We hereby disclaim any and all warranties, including but not limited to warranties of non-infringement, regarding circuits, descriptions and charts stated herein. Information For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office Warnings Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered. TLE4923 2005-04 Previous Version: none We Listen to Your Comments Any information within this document that you feel is wrong, unclear or missing at all? Your feedback will help us to continuously improve the quality of this document. Please send your proposal including a reference to this document to: Template mc_a5_ds_tmplt.fm / 4 / 2004-09-15 TLE4923 Table of Contents Overview 5 Features 5 Pin Configuration top view 6 General 7 Block Diagram 7 Functional Description 8 Circuit Description see Figure 2 8 Maximum Ratings 9 Operating Range 10 Electrical Parameters 11 Application Notes 15 Typical Performance Characteristics 19 Package Outlines 23 Data Sheet V 2005-04 Dynamic Differential Hall Effect Sensor IC Ordering Code Q62705-K408 Package PG-SSO-3-6 V 2005-04 Pin Configuration top view Center of sensitive area VS GND C AEP02039 Figure 1 Table 1 Pin No. 1 2 3 Pin Definitions and Functions Function Supply voltage Ground Capacitor TLE4923 Overview Data Sheet V 2005-04 General Block Diagram TLE4923 General Protection Device Internal Reference and Supply VREG 3V Hall-Probes Amplifier HighpassFilter SchmittTrigger 2 GND Figure 2 Block Diagram AEB01896 Data Sheet V 2005-04 TLE4923 General Functional Description The Differential Hall sensor IC detects the motion and position of ferromagnetic and permanent magnet structures by measuring the differential flux density of the magnetic field. To detect ferromagnetic objects the magnetic field must be provided by a back biasing permanent magnet south or north pole of the magnet attached to the rear unmarked side of the IC package . Using an external capacitor the generated Hall voltage signal is slowly adjusted via an active high pass filter with low frequency cut-off. This causes the output to switch into a biased mode after a time constant is elapsed. The time constant is determined by the external capacitor. Filtering avoids aging and temperature influence from Schmitt-trigger input and eliminates device and magnetic offset. The TLE4923 can be exploited to detect toothed wheel rotation in a rough environment. Jolts against the toothed wheel and ripple have no influence on the output signal. The on and off state of the IC are indicated by high and low current consumption. Circuit Description see Figure 2 The TLE4923 is comprised of a supply voltage reference, a pair of Hall probes spaced at mm, differential amplifier, filter for offset compensation, Schmitt-trigger, and a switched current source.

PDF Datasheet Preview

Data Sheet, V April 2005

TLE4923

Dynamic Differential Hall Effect Sensor IC

Sensors

Never stop thinking.

Edition 2005-04

Published by Infineon Technologies AG, St.-Martin-Strasse 53, 81669 München, Germany

Infineon Technologies AG

All Rights Reserved.

Attention please!

The information herein is given to describe certain components and shall not be considered as a guarantee of characteristics. Terms of delivery and rights to technical change reserved. We hereby disclaim any and all warranties, including but not limited to warranties of non-infringement, regarding circuits, descriptions and charts stated herein.

Information

For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office

Warnings

Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered.

TLE4923
2005-04

Previous Version:
none

We Listen to Your Comments

Any information within this document that you feel is wrong, unclear or missing at all? Your feedback will help us to continuously improve the quality of this document. Please send your proposal including a reference to this document to:

Template mc_a5_ds_tmplt.fm / 4 / 2004-09-15

TLE4923

Table of Contents

Overview 5

Features 5

Pin Configuration
top view 6

General 7

Block Diagram 7

Functional Description 8

Circuit Description see Figure 2 8

Maximum Ratings 9

Operating Range 10

Electrical Parameters 11

Application Notes 15

Typical Performance Characteristics 19

Package Outlines 23

Data Sheet

V 2005-04

Dynamic Differential Hall Effect Sensor IC
Ordering Code Q62705-K408

Package PG-SSO-3-6

V 2005-04

Pin Configuration
top view

Center of sensitive area

VS GND C

AEP02039

Figure 1

Table 1 Pin No. 1 2 3

Pin Definitions and Functions

Function

Supply voltage Ground

Capacitor

TLE4923

Overview

Data Sheet

V 2005-04

General

Block Diagram

TLE4923

General

Protection Device

Internal Reference and Supply VREG 3V

Hall-Probes Amplifier

HighpassFilter

SchmittTrigger
2 GND

Figure 2 Block Diagram

AEB01896

Data Sheet

V 2005-04

TLE4923

General

Functional Description

The Differential Hall sensor IC detects the motion and position of ferromagnetic and permanent magnet structures by measuring the differential flux density of the magnetic field. To detect ferromagnetic objects the magnetic field must be provided by a back biasing permanent magnet south or north pole of the magnet attached to the rear unmarked side of the IC package .

Using an external capacitor the generated Hall voltage signal is slowly adjusted via an active high pass filter with low frequency cut-off. This causes the output to switch into a biased mode after a time constant is elapsed. The time constant is determined by the external capacitor. Filtering avoids aging and temperature influence from Schmitt-trigger input and eliminates device and magnetic offset.

The TLE4923 can be exploited to detect toothed wheel rotation in a rough environment. Jolts against the toothed wheel and ripple have no influence on the output signal.

The on and off state of the IC are indicated by high and low current consumption.

Circuit Description see Figure 2

The TLE4923 is comprised of a supply voltage reference, a pair of Hall probes spaced at mm, differential amplifier, filter for offset compensation, Schmitt-trigger, and a switched current source.

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived TLE4923HALA1 Datasheet file may be downloaded here without warranties.

Datasheet ID: TLE4923HALA1 638762