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| SS311PT/SS411P Bipolar Hall-effect Digital Position Sensors with Built-in Pull-up Resistor DESCRIPTION The SS311PT/SS411P sensors are small, versatile digital Halleffect devices that are operated by the magnetic field from a permanent magnet or an electromagnet, designed to respond to alternating North and South poles. These sensors are available in two package styles: the These bipolar sensors have enhanced sensitivity which allows for the use of smaller, often less expensive magnets. The internal pull-up resistor often eliminates the need for external components, further helping to reduce system cost. These economical bipolar sensors are suited for many simple, highvolume, cost-sensitive, rotary sensing applications. The SS311PT is available on tape and reel (3000 units per reel); the SS411P is available in a bulk package (1000 units per bag). SS311PT in the subminiature SOT-23 surface mount package and the SS411P in the leaded, flat TO-92-style package. The 2.7 Vdc to 7 Vdc supply voltage range allows this device to be used in low voltage applications. The S311PT's very small size requires less PCB (printed circuit board) space, allowing it to be used in smaller assemblies. FEATURES * Subminiature, SOT-23 surface mount package (SS311PT) supplied on tape and reel allows for a compact design with automated component placement, helping to reduce manufacturing costs * Small, leaded, flat TO-92 package (SS411P) often allows for more space on the PCB * Sensitive, bipolar magnetics respond to alternating North and South poles, making these products suited for speed sensing and RPM measurement * Built-in pull-up resistor can easily interface with common electronic circuits without adding external components, helping to reduce total system cost * RoHS-compliant materials meet Directive 002/95/EC POTENTIAL APPLICATIONS Transportation: * Speed and RPM (revolutions per minute) sensing * Tachometer, counter pickup * Motor and fan control * Brushless dc motor control Industrial and Commercial: * Speed and RPM (revolutions per minute) sensing * Tachometer, counter pickup * Flow-rate sensing * Brushless dc (direct current) motor commutation * Motor and fan control * Robotics control SS311PT/SS411P Table 1. SS311PT/SS411P Specifications (At 2.7 Vdc to 7 Vdc supply, 4 mA load, TA = -40 C to 150 C [-40 F to 302 F] Characteristic Supply voltage Supply current Output current Vsat Output leakage current Output rise time Output fall time Thermal resistance: SS311PT SS411P Operate Release Differential Operating temperature Storage temperature Condition -40 C to 150 C [-40 F to 302 F] gauss <-140, Vs = 5 V, 25 C [77F] -40 C to 150 C [-40 F to 302 F] - gauss >140 gauss <-140 25 C [77 F] Minimum 2.7 - - - - - - - - - -30 -140 40 -40 [-40] -40 [-40] Typical 5.0 5.5 - - - - - - 303 233 55 -55 - - - Maximum 7.0 - 14 4.0 0.4 10 1.5 1.5 - - 140 30 - 150 [302] 150 [302] Unit Vdc mA mA V A s C/W gauss gauss gauss C [F] C [F] - - -40 C to 150 C [-40 F to 302 F] -40 C to 150 C [-40 F to 302 F] -40 C to 150 C [-40 F to 302 F] - - NOTICE Bipolar Hall-effect sensors 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 1 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. Current Sinking Output Block Diagram 2 www.honeywell.com/sensing Bipolar Hall-Effect Digital Position Sensors Figure 2. SS311PT Mounting/Tape and Reel Dimensions (For reference only. mm/[in]) Figure 3. SS411P Mounting Dimensions (For reference only. mm/[in]) Honeywell Sensing and Control 3 Order Guide Catalog Listing SS311PT SS411P Description Bipolar Hall-effect digital position sensor with built-in pull-up resistor, SOT-23 package, tape and reel packaging (3000 units per reel) Bipolar Hall-effect digital position sensor with built-in pull-up resistor, flat TO-92 package, bulk packaging (1000 units per bag) 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. 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. 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. 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 005914-1-EN IL50 GLO Printed in USA October 2009 (c) 2009 Honeywell International Inc. All rights reserved. |
Price & Availability of SS311PT
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