 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| ZMT31 ANGLE SENSOR DESCRIPTION The ZMT31 allows the contactless counting of the revolutions of a rotating magnet which is mounted on the axis of a wheel. Zero output voltages of the Wheatstones bridges are used as trigger signals. The sense of rotation of the wheel is taken into account by comparing the signal outputs of both Wheatstone bridges which are proportional to sin2( ) or sin2( +45 ). The angle can be determined by evaluating these signals. Alternatively it is possible to use the voltage signals of four half bridges which are trimmed on V b/2 . FEATURES * Measures the magnetic field hrot (> 50kA/m) generated by a permanent magnet which rotates over the sensor * Magnetic field hrot parallel to the chip surface causes a sinusoidal output signal * Package : SM-8 (available on 12mm tape) SM8 1 2 3 4 Bridge1: 8 7 6 5 APPLICATION * Contactless counting of the revolutions of a rotating magnet (watermeters etc.) * Contactless angular measurement * Automotive (pedal position etc.) * Contactless rotary switches * Contactless potentiometer Bridge 2: pin 1: -VO pin 5: +VO pin 8: -VB (GND) pin 4: +VB pin 2: -VO pin 6: +VO pin 7: -VB (GND) pin 3: +VB ORDERING INFORMATION DEVICE ZMT31TA ZMT31TC REEL SIZE 7 13 TAPE WIDTH 12mm 12mm QUANTITY PER REEL 1000 4000 VO - output voltage VB - supply voltage DEVICE MARKING * ZMT31 ISSUE 4 - JUNE 2004 1 SEMICONDUCTORS ZMT31 PARAMETER Supply voltage Total power dissipation Operating temperature range Storage temperature range Sensor chip alignment error SYMBOL VB Ptot Tamb Tstg e LIMIT 5 120 -25 to +130 -40 to +130 2 UNIT V mW C C PARAMETER Bridge resistance Offset voltage SYMBOL R br V Off / V B MIN. 2.0 -2.0 TYP. 3.0 MAX. 4.0 +2.0 UNIT k mV/V TEST CONDITIONS bridge 1: bridge 2: =45 ; =0 =0 ; =45 =0 ; =45 Sensitivity S 0.2 (mV/V)/ bridge 1: bridge 2: Half bridge symmetry (V S /2-V O )/V B -2.0 +2.0 mV/V bridge 1: bridge 2: Output voltage range Zero offset angle hysteresis Temperature coefficient of the bridge resistance -25 C 16 2 mV/V T CBR 0.25 0.30 0.35 %/K T CSV T CSI T COFF -0.35 -0.05 -3 -0.30 0 -0.25 0.05 +3 %/K %/K ( V/V)/K V B = const. I B = const ISSUE 4 - JUNE 2004 SEMICONDUCTORS 2 ZMT31 Output voltage of both Wheatstone bridges versus angle of the magnetic field direction ISSUE 4 - JUNE 2004 3 SEMICONDUCTORS ZMT31 PACKAGE OUTLINE Controlling dimensions are in millimeters. Approximate conversions are given in inches PACKAGE DIMENSIONS Millimeters DIM Min A A1 b c D E 0.02 0.24 6.3 3.3 Max 1.7 0.1 0.32 6.7 3.7 Typ. 0.7 Min Max 0.067 Typ. 0.0275 e1 e2 He Lp Inches DIM Min 6.7 0.9 Max 7.3 15 Typ. 4.59 1.53 10 Min Max Typ. 0.1807 0.0602 10 Millimeters Inches 0.008 0.004 - 0.264 0.287 0.035 15 - 0.009 0.013 0.248 0.264 0.130 0.145 (c) Zetex Semiconductors plc 2004 Europe Zetex GmbH Streitfeldstrae 19 D-81673 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 plc Lansdowne Road, Chadderton Oldham, OL9 9TY United Kingdom Telephone (44) 161 622 4444 Fax: (44) 161 622 4446 hq@zetex.com These offices are supported by agents and distributors in major countries world-wide. This publication is 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. The Company reserves the right to alter without notice the specification, design, price or conditions of supply of any product or service. For the latest product information, log on to www.zetex.com ISSUE 4 - JUNE 2004 SEMICONDUCTORS 4 |
Price & Availability of ZMT3104
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |