IXYS MX887P Power Hall-Effect Switch Features: General Description * * * * The MX887P integrated Hall-Effect switch targets the requirements of low-power portable devices with battery operating voltages from 2.5V to 5.5V. Onchip power management circuitry reduces the effective average current to just 5A at 3.0 VSUPPLY. * * * * Power Operation (15 W typical at 25C) Omni polar (switches with N or S pole) 2.5 to 5.5 Volt Operation Simple Digital Output Interfacing CMOS Push-Pull Ultra Low Offset Canceling Amplifiers Provide Sensitive, Accurate, Stable Switching Points and Immunity to Mechanical Stress Solid State Circuitry Operating Temperature Range: -40C to +85C RoHS Compliant TSOT-23 3 Lead Package The switch output will transition to the Ground potential when either a north or south magnetic pole is applied. The removal of a magnetic field will transition the switch to the Vsupply potential. Emulating the behavior of a traditional reed switch, together with the advantages of high integration and solid state reliability, makes the MX887P is an ideal replacement in low-power portable device applications. Applications: * * * * * Ordering Information Qty Part No. Description MX887PHTTR TSOT-23 3L Tape & Reel 3000 Handheld Portable Devices White Goods Automotive - Body Systems Security Systems High Reliability Reed Switch Replacement Functional Block Diagram Vsupply Output Latch Offset Cancellation Hall Sensor Switch Power Management Logic Output Ground MX887P Drawing No. 088709 1 7/19/07 www.claremicronix.com IXYS MX887P Pin Description Pin No. 1 2 3 Pin Name VSUPPLY OUT GROUND Description 2.5 to 5.5 Volt CMOS Push-Pull Ground Circuit Description The MX887P Power Hall-Effect Switch consists of a Hall element, small signal amplifier, latch, and CMOS push-pull driver. Offset cancellation rejects errors in signal stages and the influence of mechanical stress on the Hall element. This technique together with a precision threshold generator and comparator produce highly accurate magnetic switch points. The Hall element is activated for a small fraction of an operating cycle, then latched in that sample state for the remainder of the period. By using this technique, very low power consumption is achieved. Electrical Characteristics Over operating voltage and temperature range unless otherwise noted. Parameter Condition Supply Voltage Output Leakage Current VOUT = 5.5V, BRPN < B < BRPS Output On Voltage IOUT = 1mA, VDD = 3.0V Awake Time Min 2.5 Typ <1.0 100 Period Duty Cycle Max 5.5 1.0 300 90 Unit V A mV S 90 mS % mA A A kV 0.1 Awake (enabled) Asleep (disabled) Average (Calculated) Human Body Model Supply Current ESD 5 2.0 8.0 15 2 Notes: 1. Operating and release points will vary with supply voltage. 2. BOPX = operating point (output turns ON); BRPX = release point (output turns OFF). 3. Typical Data is at TA = 25C and VSUPPLY = 3.0V. Magnetic Characteristics Over operating voltage and temperature range unless otherwise noted. Parameter Symbol Condition South pole to branded side BOPS Operating Points North pole to branded side BOPN Release Points BRPS South pole to branded side BRPN BHYS North pole to branded side Min Typ Max 60 -60 Unit G G 6 G -6 G Hysteresis | BOPX - BRPX | 5 G Notes: 1. As use here, negative flux densities are defined as less than zero (algebraic convention) and -50G is less than +10G. 2. BOPX = operating point (output turns ON); BRPX = release point (output turns OFF). 3. Typical Data is at TA = 25C and VSUPPLY = 3.0V. MX887P Drawing No. 088709 2 7/19/07 www.claremicronix.com IXYS MX887P IXYS Corporation makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication and reserves the right to make changes to specifications and product descriptions at any time without notice. Neither circuit patent licenses nor indemnity are expressed or implied. Except as set forth in IXYS' Standard Terms and Conditions of Sale, IXYS Corporation assumes no liability whatsoever, and disclaims any expressed or implied warranty, relating to its products including, but not limited to, the implied warranty of merchantability, fitness for a particular purpose, or infringement of any intellectual property right. MX887P Drawing No. 088709 3 7/19/07 www.claremicronix.com IXYS World Wide Sales Offices IXYS Corporation 3540 Bassett Street Santa Clara, CA 925054 Tel: 1-408-892-0700 Fax: 1-408-496-0670 e-mail:sales@ixys.net United Kingdom IXYS Semiconductor Limited Langley Park Way Langley Park Chippenham Wiltshire SN 15 1GE - England Tel: 44 1249 444524 Fax: 44 1249 659448 sales@ixys.co.uk Micronix An IXYS Company 145 Columbia Aliso Viejo, CA 92656-1490 Tel: 1-949-831-4622 Fax: 1-949-831-4628 Sales Offices ASIA / PACIFIC Asian Headquarters IXYS Room 1016, Chia-Hsin, Bldg II, 10F, No. 96, Sec. 2 Chung Shan North Road Taipei, Taiwan R.O.C. Tel: 886-2-2523-6368 Fax: 886-2-2523-6368 bradley.green@ixys.co.uk Jhong@clare.com SALES OFFICES AMERICAS Eastern Region [Eastern North America, Mexico, South America] IXYS Corporation Beverly, MA Tel: 508-528-6883 Fax: 508-528-4562 wgh@ixys.net Central Region [Central North America] IXYS Corporation Greensburg, PA Tel: 724-836-8530 Fax: 724-836-8540 neil.lejeune@westcode.com Western Region Check the IXYS Website for the local sales office nearest you. (www.ixys.com) [Western North America] IXYS Corporation Solana Beach, CA Tel: 858-792-1101 slodor@ix.netcom.com SALES OFFICES EUROPE http://www.claremicronix.com European Headquarters IXYS Semiconductor GMBH Edisonstrasse 15 D- 68623 Lampertheim Germany Tel: 49-6206-503203 Fax: 49-6206-503286 marcom@ixys.de IXYS cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in this IXYS product. No circuit patent licenses nor indemnity are expressed or implied. IXYS reserves the right to change the specification and circuitry, without notice at any time. The products described in this document are not intended for use in medical implantation or other direct life support applications where malfunction may result in direct physical harm, injury or death to a person. Specification: MX887P (c)Copyright 2007, IXYS Corporation All rights reserved. Printed in USA. MX887P Drawing No. 088709 4 7/19/07 www.claremicronix.com