High sensitivity bipolar latching digital Hall effect sensor ICs
June 13, 2012 // Julien Happich
Honeywell expands its magnetic position sensor product portfolio with the SS360NT/SS360ST/SS460S high sensitivity bipolar latching digital Hall-effect sensor ICs, aimed at accurate speed sensing and revolutions-per-minute measurement.
These new sensors offer reliable switching points with high magnetic sensitivity of 30 G typical (55 G maximum) without using chopper stabilization on the Hall element, resulting in a clean output signal and the fastest latch response time in its class. They are operated by the magnetic field from a permanent magnet or an electromagnet. They are designed to respond to alternating North and South poles. The SS360NT/SS360ST/SS460S can be used in a wide range of applications. Potential industrial/commercial applications include brushless dc motor commutation, flow-rate sensing for appliances, speed and RPM sensing, tachometer/counter pickup, motor and fan control, and robotics control.
Potential transportation applications include speed and RPM sensing, tachometer/counter pickup, motor and fan control, electronic window lifts, and convertible roof position. Potential medical applications include medical equipment that utilizes electric motors. These devices operate over the full temperature range of -40 to 150°C. Two package styles are available; subminiature, SOT-23 surface mount package (SS360NT/SS360ST) supplied on tape and reel allows for compact design with automated component placement; and the small, leaded, flat TO-92-style package (SS460S) allows for a compact PC board layout. The SS360NT/SS360ST/SS460S offer a wide operating voltage range of 3 to 24 Vdc, allowing for potential use in a wide range of applications. Built-in reverse voltage enhances the protection of the sensor and the circuits.
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