DESCRIPTION The open-collector sinking output voltage is easily interfaced The SS41F/SS41G Series are small, versatile digital Hall-effect with a wide variety of electronic circuits. devices that are operated by the magnetic field from a permanent magnet or an electromagnet, and are designed to The SS41F is factory tested at 25 C [77 F] and the SS41G is respond to alternating North and South poles. factory tested at both 25 C [77 F] and 125 C [257 F]. A built-in regulator provides enhanced stability of operation Both products are designed for high volume applications. over 4.5 Vdc to 24 Vdc supply voltage range, and internal circuitry is designed to prevent sensor damage in case the supply voltage polarity is accidentally reversed. FEATURES AND BENEFITS Small, leaded, flat TO-92-style package allows for a POTENTIAL APPLICATIONS Transportation compact PCB layout Speed and RPM sensing Wide operating voltage range of 4.5 Vdc to 24 Vdc makes Commutation and control of electric motors used in these sensors useable in a variety of applications transportation Current consumption of only 5 mA max. at 4.5 Vdc for energy efficiency Industrial and Commercial Bipolar magnetics for ring magnet applications with Flow-rate sensing for appliances alternating North and South poles Tachometer, counter pickup Robust design: will operate up to 150 C [302 F] Brushless dc motor commutation RoHS-compliant materials meet Directive 2002/95/EC Motor and fan control for commercial, consumer or industrial equipment Medical Any medical equipment or instruments using electric motors Table 1. SS41F Specifications (At Vs = 4.5 Vdc to 24 Vdc supply, 20 mA load, Ta = 25 C [77 F] unless otherwise noted.) Characteristic Supply voltage Supply current Output current Vsat at 15 mA Output leakage Rise time Fall time Operate (Bop) Release (Brp) Differential Operating temperature Storage temperature Condition Min. 4.5 Typ. 6.8 Vs = 12 Vdc, Bop >170 Vs = 24 Vdc, Brp <170 Vs = 4.5 Vdc Vs = 4.5 Vdc - -150 40 -40 [-40] -40 [-40] 0.5 0.2 40 -40 - - Max. 24.0 10.0 20.0 0.4 10 1.5 1.5 150 150 [302] 150 [302] Unit Vdc mA mA V A s s Gauss Gauss Gauss C [F] C [F] Table 2. SS41G Specifications (At Vs = 4.5 Vdc to 24 Vdc, 20 mA load, Ta = -40 C to 150 C [-40 F to 302 F] unless otherwise noted.) Characteristic Condition Min. Typ. Max. Unit Supply voltage 4.5 24.0 Vdc Supply current output OFF 6.8 10.0 mA Supply current output ON 11.3 mA Output current 20.0 mA Vsat at 20 mA 25 C [77 F], Vs = 12 Vdc, Bop >170 0.4 V Output leakage Vs = 24 Vdc, Gauss <170 10 A Rise time 25 C [77 F] 0.5 1.5 s Fall time 25 C [77 F] 0.2 1.5 s Operate (Bop) 25 C [77 F] 40 150 Gauss Operate (Bop) 250 Gauss Release (Brp) 25 C [77 F] -140 -40 Gauss Release (Brp) -250 Gauss Differential 40 Gauss Operating temperature -40 [-40] - 150 [302] C [F] Storage temperature - -40 [-40] - 150 [302] C [F] NOTICE Bipolar Hall-effect sensor ICs may have an initial output in either the ON or OFF state if powered up with an applied magnetic field in the differential zone (applied magnetic field >Brp and <Bop). Honeywell recommends allowing 10 s for output voltage to stabilize after supply voltage has reached its rated value. NOTICE 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. Table 3. SS41F/SS41G Series Absolute Maximum Ratings1 Characteristic Min. Typ. 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: 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. 2 www.honeywell.com/sensing Figure 1. Magnetic Performance vs Temperature Figure 2. Current Sinking Output Block Diagram Magnetic Switch Point (Gauss) 250 200 Max Operate 150 100 Typ. Operate 50 0 Vs = 12Vdc Typ. Release -50 -100 -150 Min Release -200 -250 -40 -20 0 20 40 60 80 100 120 140 Temperature (C) Figure 3. Wiring Diagrams Figure 4. 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 1,83 [0.072] 14,61 [0.575] VS 2X 1,3 [0.050] GND OUT 3X 0,43 [0.017] 0,76 [0.03] 3X 0,3 [0.015] 3X 0,38 [0.015] Honeywell Sensing and Control 3 Order Guide Catalog Listing SS41F SS41G Description Low-cost digital bipolar Hall-effect sensor IC, tested at 25 C [77 F], flat TO-92-style package, bulk packaging (1000 units per bag) Low-cost digital bipolar Hall-effect sensor IC, tested at 25 C [77 F] and 125 C [257 F], flat TO-92-style package, bulk packaging (1000 units per bag) WARNING 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. 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. 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: 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 Sensing and Control Honeywell 1985 Douglas Drive North Golden Valley, MN 55422 www.honeywell.com/sensing 005889-2-EN IL50 GLO Printed in USA October 2010 (c) 2010 Honeywell International Inc. All rights reserved.