VF401 2-Wire Solid State Switch DESCRIPTION The VF401 allows a greater air gap between the target and the The VF401 is a 2-wire MR (magnetoresistive) bridge array in a sensor with reduced loss in sensor signal or accuracy. miniature plastic package, designed for sensing fine pitch ring magnets. Patent number 6,297,628. FEATURES POTENTIAL APPLICATIONS • Wide operating temperature range • Speed encoding using a multipole ring magnet • 2-wire operation means less wiring • Enhanced accuracy cam and crank position sensing • Enhanced sensitivity, ±7 gauss typical • Wheel speed sensing • Output pattern independent of gap between target and • Window lift applications sensor Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com VF401 ABSOLUTE MAXIMUM RATINGS1 P Parameter Supply voltage 2 P Minimum Typical Maximum Unit -18 – +18 V – – 175 [347] for °C [°F] Magnetic flux gauss no limit 10 min. at Temperature 10 cycles Frequency – – 3000 Hz Notes: 1. Absolute maximum ratings are the extreme limits the device will momentarily withstand without damage to the device. Electrical and magnetic characteristics are not guaranteed if the rated voltage and/or currents are exceeded nor will the device necessarily operate at absolute maximum ratings. 2. Customer supplied sense resistor required for negative reverse voltage. PERFORMANCE SPECIFICATIONS (Established using a 65,00 mm [2.559 in] diameter, 48 pole pair ring magnet.) Parameter Vcc 1 Condition Minimum Typical Maximum Unit – – – – V Vh (V+ to V-) – 4.5 – 16 V Icc operate – 11.8 14 16.80 mA Icc released – 5.9 7 8.40 mA Icc ratio (op/rel) – 1.9 2.0 2.3 – Rise time at 25 °C [77 °F] Vcc = 12 V, RL: = 150 Ohm, CL = 1000 pf – 1.5 – µs Vcc = 12 V, RL: = 150 Ohm, CL = 1000 pf – 1.5 – µs – 150 [302] °C [°F] – gauss 10% to 90% Fall time at 25 °C [77 °F] 10% to 90% Operating temperature – -40 [-40] Differential magnetic field – – over entire MR bridge area +7 -7 operate release Air gap2 – Duty cycle – Notes: 1. Vcc is limited by Vh and the value chosen for the sense resistor. 2. Sensor operation at limits for air gap is dependent on ring magnet. 2 0.75 – 2.5 mm 30 50 70 % www.honeywell.com/sensing Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com 2-Wire Solid State Switch ELECTRICAL SPECIFICATION TEST CONDITION SENSOR OUTPUT BLOCK DIAGRAM MOUNTING DIMENSIONS (For reference only. mm/[in]) Honeywell Sensing and Control 3 Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com ORDER GUIDE Catalog Listing Description VF401 2-wire solid state switch, standard bulk pack, 500 units per bag Note: Bulk packaging process may affect lead straightness on some units. WARNING WARNING MISUSE OF DOCUMENTATION • The information presented in this product sheet is for reference only. Do not use this document as a product installation guide. • Complete installation, operation, and maintenance information is provided in the instructions supplied with each product. Failure to comply with these instructions could result in death or serious injury. WARRANTY/REMEDY Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship. Honeywell’s standard product warranty applies unless agreed to otherwise by Honeywell in writing; please refer to your order acknowledgement or consult your local sales office for specific warranty details. If warranted goods are returned to Honeywell during the period of coverage, Honeywell will repair or replace, at its option, without charge those items it finds defective. The foregoing is buyer’s sole remedy and is in lieu of all other warranties, expressed or implied, including those of merchantability and fitness for a particular purpose. In no event shall Honeywell be liable for consequential, special, or indirect damages. While we provide application assistance personally, through our literature and the Honeywell web site, it is up to the customer to determine the suitability of the product in the application. PERSONAL INJURY DO NOT USE these products as safety or emergency stop devices or in any other application where failure of the product could result in personal injury. Failure to comply with these instructions could result in death or serious injury. SALES AND SERVICE Honeywell serves its customers through a worldwide network of sales offices, representatives and distributors. For application assistance, current specifications, pricing or name of the nearest Authorized Distributor, contact your local sales office or: E-mail: [email protected] Internet: www.honeywell.com/sensing Phone and Fax: Asia Pacific +65 6355-2828 +65 6445-3033 Fax Europe +44 (0) 1698 481481 +44 (0) 1698 481676 Fax Latin America +1-305-805-8188 +1-305-883-8257 Fax USA/Canada +1-800-537-6945 +1-815-235-6847 +1-815-235-6545 Fax Specifications may change without notice. The information we supply is believed to be accurate and reliable as of this printing. However, we assume no responsibility for its use. Automation and Control Solutions Sensing and Control Honeywell 1985 Douglas Drive North Minneapolis, MN 55422 www.honeywell.com/sensing 005884-1-EN IL50 GLO Printed in USA April 2007 © 2007 Honeywell International Inc. All rights reserved. Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: (650) 588-9200-Outside Local Area: (800) 258-9200-www.stevenengineering.com