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SS40A Datasheet

Part Number SS40A
Manufacturers SEC
Logo SEC
Description CMOS Omnipolar High Sensitivity Micropower Hall Switch
Datasheet SS40A DatasheetSS40A Datasheet (PDF)

SS40A CMOS Omnipolar High Sensitivity Micropower Hall Switch Packages Features and Benefits 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Operation down to 2.5V Wide operating voltage range High sensitivity for direct reed switch replacement applications Omnipolar, output switches with absolute value of North or South pole from magnet Temperature compensation Open-Collector pre-driver 60V maximum withstand voltage Reverse polarity protection Package: TO-92S(SIP)   3 pin SIP (suffix UA) Functional Block Dia.

  SS40A   SS40A






Part Number SS40A
Manufacturers Honeywell
Logo Honeywell
Description Magnetic Position Sensors
Datasheet SS40A DatasheetSS40A Datasheet (PDF)

Magnetic Position Sensors Low-Cost, Bipolar, Hall-effect Sensors SS40A/SS50AT Series FEATURES • Small size • Low cost • Reverse polarity protection • Sensitive - bipolar magnetics respond to alternating north and south poles • Thermally balanced, integrated circuit over a full temperature range • Stable operation TYPICAL APPLICATIONS • Cooling fan control in computers and appliances • RPM (revolutions per minute) sensing, speed control • Brushless dc motor commutation • Position sensing and m.

  SS40A   SS40A







CMOS Omnipolar High Sensitivity Micropower Hall Switch

SS40A CMOS Omnipolar High Sensitivity Micropower Hall Switch Packages Features and Benefits 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Operation down to 2.5V Wide operating voltage range High sensitivity for direct reed switch replacement applications Omnipolar, output switches with absolute value of North or South pole from magnet Temperature compensation Open-Collector pre-driver 60V maximum withstand voltage Reverse polarity protection Package: TO-92S(SIP)   3 pin SIP (suffix UA) Functional Block Diagram Application Examples 1. 2. 3. 4. www.DataSheet.net/ Brush-less DC Motor Brush-less DC Fan Revolution counting Speed measurement   General Description: The SS40A Omnipolar Hall effect sensor IC is fabricated from mixed signal CMOS technology. It incorporates advanced chopper-stabilization techniques to provide accurate and stable magnetic switch points. The circuit design provides an internally controlled clocking mechanism to cycle power to the Hall element and analog signal processing circuits. This serves to place the high current-consuming portions of the circuit into a “Sleep” mode. Periodically the device is “Awakened” by this internal logic and the magnetic flux from the Hall element is evaluated against the predefined thresholds. If the flux density is above or below the B OP /B RP thresholds then the output transistor is driven to change states accordingly. While in the “Sleep” cycle the output transistor is latched in its previous state. The design has been optimized .


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