TLE4941C-HT

TLE4941C-HT Datasheet

TLE4941/4941C

Part	Datasheet
TLE4941C-HT	TLE4941C-HT (pdf)

Related Parts	Information
TLE4941-1-HT	TLE4941-1-HT
TLE4941-1C-HT	TLE4941-1C-HT
TLE4941-HT	TLE4941-HT

PDF Datasheet Preview
TLE4941/4941C Smart Hall Effect ICs for Active Wheel Speed Sensing • Modern ABS systems • Transmission speed sensing • No external components needed • Frequency range from 1 to 5000 Hz • Two wire standard current interface • Dynamic self-calibration principle • Excellent sensitivity min < mT • South and North pole pre-induction possible • Ultra thin PG-SSO package • nF overmoulded capacitor for enhanced EMC C-versions • Single chip solution • Output switching with 1 st magnetic edge -1 versions Functional Description T H E D I F E R E N T I A L Hall sensor IC detects the motion of ferromagnetic and 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 back biasing permanent magnet. Magnetic and device offsets are cancelled by a self-calibration algorithm whithin a few transitions. The ON and OFF state of the IC are indicated by High and Low current consumption. PG-SSO-2-2 Sensors Hall Probes Power Supply Regulator Main Comp Offset DAC Oscillator syst clock PGA Speed ADC Gain Range Digital Circuit Block Diagram T L E 4 9 4 1 signal path is comprised of a pair of hall probes, spaced at mm, a differential amplifier including a noiselimiting low-pass filter, and a comparator feeding a switched current output stage. I N A D I T I O N an offset cancellation feedback loop is provided by a signal-tracking A/D converter, a digital signal processor DSP and an offset cancellation D/A converter. Parameter Operating voltage Supply current L/H Min magn. flux density Power on time Frequency range Temperature range Jitter Value 20 7 / 14 < <1 < 1 5000 -40 +150 <2 Magnetic Signal TLE4941 Unit V mA mT msec Hz °C % Interface Description TLE4941 outputs a conventional square wave signal for speed frequency. Type TLE4941 TLE4941C TLE4941-1 TLE4941-1C Sales Code Q62705-K714 Q62705-K715 Q62705-K719 Q62705-K712 Package PG-SSO-2-1 PG-SSO-2-2 PG-SSO-2-1 PG-SSO-2-2 How to reach us Published by Infineon Technologies AG 81726 München, Germany Infineon Technologies AG All Rights Reserved. Published by Infineon Technologies AG Legal Disclaimer The information given in this Product Brief shall in no event be regarded as a guarantee of conditions or characteristics “Beschaffenheitsgarantie” . With respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation warranties of non-infringement of intellectual property rights of any third party. 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. Ordering No. B112-H7820-G1-X-7600 Printed in Germany PS nb

PDF Datasheet Preview

TLE4941/4941C

Smart Hall Effect ICs for Active Wheel Speed Sensing
• Modern ABS systems
• Transmission speed sensing
• No external components needed
• Frequency range from 1 to 5000 Hz
• Two wire standard current interface
• Dynamic self-calibration principle
• Excellent sensitivity min < mT
• South and North pole pre-induction possible
• Ultra thin PG-SSO package
• nF overmoulded capacitor for enhanced EMC C-versions
• Single chip solution
• Output switching with 1 st magnetic edge -1 versions

Functional Description

T H E D I F E R E N T I A L Hall sensor IC detects the motion of ferromagnetic and 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 back biasing permanent magnet. Magnetic and device offsets are cancelled by a self-calibration algorithm whithin a few transitions. The ON and OFF state of the IC are indicated by High and Low current consumption.

PG-SSO-2-2

Sensors

Hall Probes

Power Supply Regulator

Main Comp

Offset DAC

Oscillator syst clock PGA

Speed ADC

Gain Range

Digital Circuit

Block Diagram

T L E 4 9 4 1 signal path is comprised of a pair of hall probes, spaced at mm, a differential amplifier including a noiselimiting low-pass filter, and a comparator feeding a switched current output stage.

I N A D I T I O N an offset cancellation feedback loop is provided by a signal-tracking A/D converter, a digital signal processor DSP and an offset cancellation D/A converter.

Parameter Operating voltage Supply current L/H Min magn. flux density Power on time Frequency range Temperature range Jitter

Value 20 7 / 14 < <1 < 1 5000 -40 +150 <2

Magnetic Signal

TLE4941

Unit V mA mT msec Hz °C %

Interface Description

TLE4941 outputs a conventional square wave signal for speed frequency.

Type TLE4941 TLE4941C TLE4941-1 TLE4941-1C

Sales Code Q62705-K714 Q62705-K715 Q62705-K719 Q62705-K712

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

How to reach us Published by Infineon Technologies AG 81726 München, Germany Infineon Technologies AG All Rights Reserved.

Published by Infineon Technologies AG

Legal Disclaimer The information given in this Product Brief shall in no event be regarded as a guarantee of conditions or characteristics “Beschaffenheitsgarantie” . With respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation warranties of non-infringement of intellectual property rights of any third party.

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.
Ordering No. B112-H7820-G1-X-7600 Printed in Germany PS nb

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 TLE4941C-HT Datasheet file may be downloaded here without warranties.

Datasheet ID: TLE4941C-HT 638763