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| ZMY20 MAGNETIC FIELD SENSOR DESCRIPTION The ZMY20 is an extremely sensitive magnetic sensor employing the magneto-resistive effect of thin film permalloy. It allows the measurement of magnetic fields or the detection of magnetic parts. The highly sensitive and small size magnetoresistive sensors consist of a chip covered with thin film permalloy stripes. These stripes form a Wheatstone bridge, whose output voltage is proportional to the magnetic field component Hy. A perpendicular field Hx is necessary to stabilize sensor operation. This can be done by using a small permanent magnet. Hy -VB Hx +VB -VO +VO FEATURES * Output voltage proportional to magnetic field Hy * Adjustment of sensitivity and suppression of hysteresis by the auxiliary magnetic field Hx * Magnetic fields vertical to the chip level are not effective SOT223S APPLICATIONS * Linear position sensors for process control, door interlocks, proximity detectors, machine tool sensing * Scalar measurement for compassing * Automotive - door switches, engine position & speed sensing * Metering of fluids by sensing rotation of impeller * Traffic counting & vehicle-type sensing PINOUT -VB ORDERING INFORMATION DEVICE ZMY20TA ZMY20TC REEL SIZE 7" 13" TAPE WIDTH 12mm 12mm QUANTITY PER REEL 1000 units 4000 units +VO -VO +VB VB = SUPPLY VOLTAGE VO = OUTPUT VOLTAGE Top View * Measurement of current in a conductor without connection DEVICE MARKING * ZMY20 ISSUE 3 - JUNE 2007 1 SEMICONDUCTORS ZMY20 ABSOLUTE MAXIMUM RATINGS. PARAMETER Supply Voltage Total power dissipation Operating Temperature Range Storage Temperature Range SYMBOL VB P TOT T amb T stg LIMIT 12 120 -40 to +150 -65 to +150 UNIT V mW C C ELECTRICAL CHARACTERISTICS.(at Tamb=25C and HX=3 kA/m unless otherwise stated) PARAMETER Bridge resistance Output voltage range Open circuit sensitivity Hysteresis of output voltage Offset Voltage Operating Frequency Temp. Coeff. of offset voltage Temp. Coeff. Of bridge resistance Temp. Coeff. of open circuit sensitivity V B =5V Temp. Coeff. of open circuit sensitivity I B =3mA SYMBOL R br V O /V B S V OH /V B V off /V B f max TCV off TCR br TCS V MIN 1.2 16 3.7 -1.0 0 -3 0.25 -0.25 TYP 1.7 20 4.7 0.3 -0.3 MAX 2.2 24 5.7 50 +1.0 1 +3 0.35 -0.35 UNIT k mV/V (mV/V)/ (kA/m) V/V mV/V MHz (V/V)/K %/K %/K Tamb= -25 to +125C Tamb= -25 to +125C Tamb= -25 to +125C No disturbing field Hd allowed Hy 2kA/m TEST CONDITIONS TCS I - -0.1 - %/K Tamb= -25 to +125C ISSUE 3 - JUNE 2007 SEMICONDUCTORS 2 ZMY20 Application 1 (digital output) Application 2 (analog output) ISSUE 3 - JUNE 2007 3 SEMICONDUCTORS ZMY20 Sensor output characteristic VO=f(Hy); Hx-parameter Vb=const; Tamb=25C Safe operating area Hxtot=Hx + Hd; Tamb=25C; (Hd=disturbing field) The sensor has to be reset after leaving the safe operating area by an auxiliary field of Hx=3kA/m ISSUE 3 - JUNE 2007 SEMICONDUCTORS 4 ZMY20 Sensor sensitivity characteristic S=f(Hx) Vb=const; Tamb=25C Supply voltage (maximum) derating curve VBmax=f(Tamb) Device mounted on 40 x 40 mm2 board (copper area 600mm2) ISSUE 3 - JUNE 2007 5 SEMICONDUCTORS ZMY20 PACKAGE OUTLINE CONTROLLING DIMENSIONS IN MILLIMETRES APPROX CONVERSIONS INCHES. ISSUE 3 - JUNE 2007 SEMICONDUCTORS 6 ZMY20 Definitions Product change Zetex Semiconductors reserves the right to alter, without notice, specifications, design, price or conditions of supply of any product or service. Customers are solely responsible for obtaining the latest relevant information before placing orders. Applications disclaimer The circuits in this design/application note are offered as design ideas. It is the responsibility of the user to ensure that the circuit is fit for the user's application and meets with the user's requirements. No representation or warranty is given and no liability whatsoever is assumed by Zetex with respect to the accuracy or use of such information, or infringement of patents or other intellectual property rights arising from such use or otherwise. Zetex does not assume any legal responsibility or will not be held legally liable (whether in contract, tort (including negligence), breach of statutory duty, restriction or otherwise) for any damages, loss of profit, business, contract, opportunity or consequential loss in the use of these circuit applications, under any circumstances. Life support Zetex products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Zetex Semiconductors plc. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body or 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or to affect its safety or effectiveness. Reproduction The product specifications contained in this publication are issued to provide outline information only which (unless agreed by the company in writing) may not be used, applied or reproduced for any purpose or form part of any order or contract or be regarded as a representation relating to the products or services concerned. Terms and Conditions All products are sold subjects to Zetex' terms and conditions of sale, and this disclaimer (save in the event of a conflict between the two when the terms of the contract shall prevail) according to region, supplied at the time of order acknowledgement. For the latest information on technology, delivery terms and conditions and prices, please contact your nearest Zetex sales office. Quality of product Zetex is an ISO 9001 and TS16949 certified semiconductor manufacturer. To ensure quality of service and products we strongly advise the purchase of parts directly from Zetex Semiconductors or one of our regionally authorized distributors. For a complete listing of authorized distributors please visit: www.zetex.com/salesnetwork Zetex Semiconductors does not warrant or accept any liability whatsoever in respect of any parts purchased through unauthorized sales channels. ESD (Electrostatic discharge) Semiconductor devices are susceptible to damage by ESD. Suitable precautions should be taken when handling and transporting devices. The possible damage to devices depends on the circumstances of the handling and transporting, and the nature of the device. The extent of damage can vary from immediate functional or parametric malfunction to degradation of function or performance in use over time. Devices suspected of being affected should be replaced. Green compliance Zetex Semiconductors is committed to environmental excellence in all aspects of its operations which includes meeting or exceeding regulatory requirements with respect to the use of hazardous substances. Numerous successful programs have been implemented to reduce the use of hazardous substances and/or emissions. All Zetex components are compliant with the RoHS directive, and through this it is supporting its customers in their compliance with WEEE and ELV directives. Product status key: "Preview"Future device intended for production at some point. Samples may be available "Active"Product status recommended for new designs "Last time buy (LTB)"Device will be discontinued and last time buy period and delivery is in effect "Not recommended for new designs"Device is still in production to support existing designs and production "Obsolete"Production has been discontinued Datasheet status key: "Draft version"This term denotes a very early datasheet version and contains highly provisional information, which may change in any manner without notice. "Provisional version"This term denotes a pre-release datasheet. It provides a clear indication of anticipated performance. However, changes to the test conditions and specifications may occur, at any time and without notice. "Issue"This term denotes an issued datasheet containing finalized specifications. However, changes to specifications may occur, at any time and without notice. ISSUE 3 - JUNE 2007 7 SEMICONDUCTORS ZMY20 (c) Zetex Semiconductors plc 2007 Europe Zetex GmbH Kustermann-Park Balanstrae 59 D-81541 Munchen Germany Telefon: (49) 89 45 49 49 0 Fax: (49) 89 45 49 49 49 europe.sales@zetex.com Americas Zetex Inc 700 Veterans Memorial Hwy Hauppauge, NY 11788 USA Telephone: (1) 631 360 2222 Fax: (1) 631 360 8222 usa.sales@zetex.com Asia Pacific Zetex (Asia) Ltd 3701-04 Metroplaza Tower 1 Hing Fong Road, Kwai Fong Hong Kong Telephone: (852) 26100 611 Fax: (852) 24250 494 asia.sales@zetex.com Corporate Headquarters Zetex Semiconductors plc Zetex Technology Park Chadderton, Oldham, OL9 9LL United Kingdom Telephone (44) 161 622 4444 Fax: (44) 161 622 4446 hq@zetex.com ISSUE 3 - JUNE 2007 SEMICONDUCTORS 8 |
Price & Availability of ZMY2007
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