Installation Instructions for the SS351AT/SS451A/SS551AT Omnipolar Digital Hall-Effect Sensor ICs GENERAL INFORMATION The SS351AT, SS451A and SS551AT are omnipolar devices, meaning that they may be turned on (output low) by either a North pole or a South pole. The device will turn off (output high) when the magnetic field is removed. CAUTION ELECTROSTATIC DISCHARGE DAMAGE This component is sensitive to electrostatic discharge (ESD). Take normal ESD precautions in handling this product to prevent ESD-induced damage and/or degradation, Failure to comply with these instructions may result in product damage. SOLDERING/ASSEMBLY CAUTION SOLDERING INSTRUCTIONS Ensure leads are adequately supported during any forming/shearing operation so that they are not stressed inside the plastic case. Limit exposure to high temperatures. Failure to comply with these instructions may result in product damage. ISSUE 2 50046920 Table 1. Absolute Maximum Ratings Min. Typ. Characteristic Max. Unit Supply voltage -28.0 - 28.0 V Applied Output Voltage -0.5 - 28.0 V Output Current - - 20 mA Magnetic Flux - - no limit Gauss Note 1: The magnetic field strength (gauss) required to cause the switch to change state (operate and release) will be as specified in the magnetic characteristics. To test the switch against the specified magnetic characteristics, the switch must be placed in a uniform magnetic field. NOTICE Absolute maximum ratings are the extreme limits that the device will withstand without damage to the device. However, the electrical and mechanical characteristics are not guaranteed as the maximum limits (above recommended operating conditions) are approached, nor will the device necessarily operate at absolute maximum ratings. Figure 1. SS351AT Rated Supply Voltage vs Temperature Surface-mount (SS351AT and SS551AT): Use an infrared reflow process with temperatures of 245 C [473 F] peak for 10 s max. Through-hole leads (SS451A): Wave solder at 250 C to 260 C [482 F to 500 F] for 3 s max. Figure 2. Current Sinking Output Block Diagram Sensing and Control Figure 3. Typical SS351AT/SS451A/SS551AT Magnetic Performance vs Temperature Ss351AT/SS451A/SS551AT Issue 2 50046920 Table 2. SS351AT/SS451A/SS551AT Specifications (At Vs=3.0 Vdc to 24 Vdc, 20 mA load, TA=-40 C to 150 C [-40 F to 257 F].) Characteristic 1 Supply voltage : SS451A/SS551AT SS351AT SS351AT Supply current Condition Minimum Typical Maximum -40 C to 150 C [-40 F to 302 F] -40 C to 125 C [-40 F to 257 F] 150 C [302 F] Vsupply = 5 V at 25 C [77 F] Vsupply = 3 V at 25 C [77 F] 3 3 3 - - - - - - - - 4.5 3.5 - - - 24 24 12 6 5 9 20.0 0.4 - - 10 A - - - - 1.5 1.5 s - - - 233 303 210 - - - - 35 -135 85 -85 135 -35 Gauss - 10 -120 5 -40 [-40] -40 [-40] 40 -40 45 - - 120 -10 80 150 [302] 150 [302] Gauss Output current Vsat Output leakage current Output switching time: rise fall Thermal resistance: SS451A SS351AT SS551AT Operate: positive negative Release: positive negative Differential Operating temperature Storage temperature Note 1: See Figure 1. - at 20 mA, Gauss > Bop positive or Gauss < Bop negative Gauss > Bop+ or < BopVsupply = 12 V at 25 C [77 F], RL =1.6 kOhm, CL = 20 pF - - - - Figure 4. Sample Wiring Diagrams: Sinking Output Sensor 2 Honeywell Sensing and Control Unit Vdc mA mA V C/W Gauss C [F] C [F] Issue 2 Figure 5. SS351AT Mounting/Tape and Reel Dimensions (For reference only. mm/[in].) 2,90 [0.114] 3 GND (-) NOMINAL IC CENTER 2,80 [0.110] 1,60 [0.063] 1 VCC (+) 2 OUTPUT 3X 0,50 [0.20] 0,95 [0.037] 1,90 [0.075] N S 1,45 1,20 [0.057] [0.047] S N NOMINAL TO IC SENSING SURFACE 0,413 [0.016] 0,77 [0.030] 0,787 [0.031] 0,60 [0.024] Figure 6. SS451A Mounting Dimensions (For reference only. mm/[in].) 2,5 [0.100] 0,46 [0.018] 4,1 [0.161] NOMINAL IC CENTER 3.0 [0.118] NOMINAL TO IC SENSING SURFACE 1,6 [0.062] NS SN 1,83 [0.072] 14,61 [0.575] VS 2X 1,3 [0.050] GND OUT 3X 0,43 [0.017] 3X 0,38 [0.015] 0,76 [0.03] 3X 0,3 [0.015] 50046920 Issue 2 50046920 Figure 7. SS551AT Mounting/Tape and Reel Dimensions (For reference only. mm/[in].) 1,7 [0.07] 8,0 [0.31] NOMINAL HALL EFFECT IC CENTER 2,4 MAX. [0.9] 4,2 [0.16] 5,8 [0.230] - + 0,7 [0.004] TOP COVER TAPE 5,5 [0.22] 12,2 [0.48] 8,0 [0.315] 3X 0,4 [0.02] 4,4 [0.17] N S 2,0 [0.08] O 1,5 [0.06] 0,4 MAX. [0.16] 2,0 [0.08] 0 2X 1,5 [0.06] S N 0,4 [0.016] TYP. TO HALLEFFECT SENSING SURFACE 4,5 [0.18] 0,1 [0.01] O 13,0 [0.51] 2,4 [0.09] 4,0 [0.16] 3X 1,5 [0.06] 4,6 [0.18] 18,4 [0.72] 5,0 [0.20] 12,2 [0.48] O 33,0 [1.30] 1,4 [0.054] 2,5 [0.10] 50,0 [1.97] 0,05 [0.002] O 178,0 [7.01] WARNING 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. 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. 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. 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: info.sc@honeywell.com Internet: http://sensing.honeywell.com 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 Sensing and Control Honeywell 1985 Douglas Drive North Golden Valley, MN 55422 http://sensing.honeywell.com 50046920-2-EN October 2012 Copyright (c) 2012 Honeywell International Inc. All rights reserved.