TLE49421HALA1

TLE49421HALA1 Datasheet

TLE4942-1 TLE4942-1C

Part	Datasheet
TLE49421HALA1	TLE49421HALA1 (pdf)

Related Parts	Information
TLE49421CBAMA1	TLE49421CBAMA1
TLE4942-1C-HT	TLE4942-1C-HT
TLE4942-1-HT	TLE4942-1-HT

PDF Datasheet Preview
Data Sheet, V3.1, February 2005 Differential Two-Wire Hall Effect Sensor-IC for Wheel Speed Applications with Direction Detection TLE4942-1 TLE4942-1C Sensors Never stop thinking. Edition 2004-03-19 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. TLE4942 Series Differential Two-Wire Hall Effect Sensor IC TLE4942-1 TLE4942-1C • Two-wire PWM current interface • Detection of rotation direction • Airgap diagnosis • Assembly position diagnosis • Dynamic self-calibration principle • Single chip solution • No external components needed • High sensitivity • South and north pole pre-induction possible • High resistance to piezo effects • Large operating air-gaps • Wide operating temperature range • TLE4942-1C nF overmolded capacitor PG-SSO-2-1 PG-SSO-2-2 Type TLE4942-1 TLE4942-1C Marking 4201R4 42C1R4 Ordering Code Q62705-K738 Q62705-K709 Package PG-SSO-2-1 PG-SSO-2-2 The Hall Effect sensor IC TLE4942-1 is designed to provide information about rotational speed, direction of rotation, assembly position and limit airgap to modern vehicle dynamics control systems and ABS. The output has been designed as a two wire current interface based on a Pulse Width Modulation principle. The sensor operates without external components and combines a fast power-up time with a low cut-off frequency. Excellent accuracy and sensitivity is specified for harsh automotive requirements as a wide temperature range, high ESD robustness and high EMC resilience. State-of-the-art BiCMOS technology is used for monolithic integration of the active sensor areas and the signal conditioning. Finally, the optimized piezo compensation and the integrated dynamic offset compensation enable easy manufacturing and elimination of magnet offsets. The TLE4942-1 is additionally provided with an overmolded nF capacitor for improved EMI performance. Data Sheet V 1, 2005-02 TLE4942-1 TLE4942-1C Pin Configuration top view S 0015 4201R4 Data Code Marking Center of sensitive area Figure 1 VCC GND VCC GND AEP03191 "VCC" Power Supply Regulator Main Comp Hall Probes Right Center Offset DAC Oscillator syst clock Speed ADC Gain Range Direction ADC Left "X" = Left + Right /2 - Center Figure 2 Block Diagram Data Sheet "Signal" Digital Circuit AEB03192 V 1, 2005-02 TLE4942-1 TLE4942-1C Functional Description The differential Hall Effect IC detects the motion of ferromagnetic or permanent magnet structures by measuring the differential flux density of the magnetic field. To detect the motion of ferromagnetic objects the magnetic field must be provided by a backbiasing permanent magnet. Either the South or North pole of the magnet can be attached to the rear, unmarked side of the IC package. Magnetic offsets of up to ± 20 mT and mechanical offsets are cancelled out through a self-calibration algorithm. Only a few transitions are necessary for the self-calibration procedure. After the initial self-calibration sequence switching occurs when the input signal crosses the arithmetic mean of its max. and min. values e.g. zero-crossing for sinusoidal signals . The ON and OFF state of the IC are indicated by High and Low current consumption. Each zero crossing of the magnetic input signal triggers an output pulse. Magnetic Signal Pulse Length Output Signal AED03189 Figure 3 Zero-Crossing Principle and Corresponding Output Pulses

PDF Datasheet Preview

Data Sheet, V3.1, February 2005

Differential Two-Wire Hall Effect Sensor-IC for Wheel Speed Applications with Direction Detection

TLE4942-1 TLE4942-1C

Sensors

Never stop thinking.

Edition 2004-03-19

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.

TLE4942 Series

Differential Two-Wire Hall Effect Sensor IC

TLE4942-1 TLE4942-1C
• Two-wire PWM current interface
• Detection of rotation direction
• Airgap diagnosis
• Assembly position diagnosis
• Dynamic self-calibration principle
• Single chip solution
• No external components needed
• High sensitivity
• South and north pole pre-induction possible
• High resistance to piezo effects
• Large operating air-gaps
• Wide operating temperature range
• TLE4942-1C nF overmolded capacitor

PG-SSO-2-1

PG-SSO-2-2

Type TLE4942-1 TLE4942-1C

Marking 4201R4 42C1R4
Ordering Code Q62705-K738 Q62705-K709

Package PG-SSO-2-1 PG-SSO-2-2

The Hall Effect sensor IC TLE4942-1 is designed to provide information about rotational speed, direction of rotation, assembly position and limit airgap to modern vehicle dynamics control systems and ABS. The output has been designed as a two wire current interface based on a Pulse Width Modulation principle. The sensor operates without external components and combines a fast power-up time with a low cut-off frequency. Excellent accuracy and sensitivity is specified for harsh automotive requirements as a wide temperature range, high ESD robustness and high EMC resilience. State-of-the-art BiCMOS technology is used for monolithic integration of the active sensor areas and the signal conditioning.

Finally, the optimized piezo compensation and the integrated dynamic offset compensation enable easy manufacturing and elimination of magnet offsets. The TLE4942-1 is additionally provided with an overmolded nF capacitor for improved EMI performance.

Data Sheet

V 1, 2005-02

TLE4942-1 TLE4942-1C

Pin Configuration top view

S 0015
4201R4

Data Code Marking

Center of sensitive area

Figure 1

VCC GND

VCC GND

AEP03191
"VCC"

Power Supply Regulator

Main Comp

Hall Probes Right Center

Offset DAC

Oscillator syst clock

Speed ADC

Gain Range

Direction ADC

Left
"X" = Left + Right /2 - Center

Figure 2 Block Diagram

Data Sheet
"Signal"

Digital Circuit

AEB03192

V 1, 2005-02

TLE4942-1 TLE4942-1C

Functional Description

The differential Hall Effect IC detects the motion of ferromagnetic or permanent magnet structures by measuring the differential flux density of the magnetic field. To detect the motion of ferromagnetic objects the magnetic field must be provided by a backbiasing permanent magnet. Either the South or North pole of the magnet can be attached to the rear, unmarked side of the IC package. Magnetic offsets of up to ± 20 mT and mechanical offsets are cancelled out through a self-calibration algorithm. Only a few transitions are necessary for the self-calibration procedure. After the initial self-calibration sequence switching occurs when the input signal crosses the arithmetic mean of its max. and min. values e.g. zero-crossing for sinusoidal signals . The ON and OFF state of the IC are indicated by High and Low current consumption. Each zero crossing of the magnetic input signal triggers an output pulse.

Magnetic Signal

Pulse Length

Output Signal

AED03189

Figure 3 Zero-Crossing Principle and Corresponding Output Pulses

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 TLE49421HALA1 Datasheet file may be downloaded here without warranties.

Datasheet ID: TLE49421HALA1 638765