P R O D U C T B R I E F G i a n t M a g n e t o R e s i s t o r t h e o p t i m i z e d a n g l e s e n s o r Applications P-MW-6 Features Angular and linear position sensing in automotive and industrial applications: - Pedal position - Suspension control - Valve position - Throttle position - Steering angle Intrinisic angle sensor Sensitive to direction of an applied magnetic field not to its intensity Huge assembly tolerances Big airgaps Monolithic bridge structures Constant temperature coefficient Small SMT package - Seat position - Rotary switch (white goods) G M R B 6 / G M R C 6 Giant Magneto Resistor (GMR) N e v e r s t o p t h i n k i n g . P R O D U C T GMR B6 GMR C6 N S sine sine cosine M B R I E F Two types of monolithic bridges - formed by 4 resistive areas with different orientation GMR B6 - Wheatstone full bridge for 180 angular range GMR C6 - two crossed half bridges for 360 angular range GMR C6 sine GMR C6 cosine GMR B6 sine x 2 >200 mV @5 V Bridge Voltage 1 0 -1 0 180 360 Angle GMR C6: bridge voltage against half suply voltage Parameter Supply voltage Basic resistance Magnetic window GMR effect Output signal full bridge (@V1N = 5 V) Output signal half bridge (@V1N = 5 V) Offset voltage (@V1N = 5 V) Operating temperature Supply V0 R Symbol V1 R0 H R/R0 Vout Vout |V0| TA Amplifier (A 50) Value 0 ... 7 Unit V >700 5 ... 15 >4 >200 >100 <8 -40 ... 150 kA/m % mV mV mV C VA x sin() = tan() VA x cos() + - ADC 1 C ADC 2 R + - GMR C6 V0/2 (1+R/R sin()) V0/2 (1+R/R cos()) Type GMR B6 GMR C6 VA x sin() VA x cos() Sales Code Q62705-K 5004 Q62705-K 5005 Published by Infineon Technologies AG, St.-Martin-Strasse 53, 81541 Munchen (c) Infineon Technologies AG 2001. All Rights Reserved. C evaluation: 1. Division eliminates temperature dependence of amplitude 2. Arcus tangent evaluation by look up table or computation angle Package P-MW-6 P-MW-6 Attention please! The information herein is given to describe certain components and shall not be considered as warranted 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. Infineon Technologies is an approved CECC manufacturer. Information For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office in Germany or our Infineon Technologies Representatives worldwide. Published by Infineon Technologies AG How to reach us: http://www.infineon.com Infineon Technologies AG Richard-Strauss-Strae 76 D-81679 Munchen Tel. (+49) 89-92 21 40 86 Fax (+49) 89-92 21 20 71 Infineon Technologies (AP) Pte Ltd 25 New Industrial Road Singapore 536211 Tel. (+65) 8-40 05 91 Fax (+65) 8-40 00 76 Infineon Technologies Corp. Suite 112, Sensors Marketing Group 21800 Haggerty Rd. NORTHVILLE, (MI) 48167 Tel. (+1) 2 48-3 74 08 90 Fax (+1) 2 48-3 74 25 01 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 lifesupport 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-H7829-X-X-7600 Printed in Germany PS 03012. NB