New high sensitivity latching digital Hall-effect sensor ICs from Honeywell

Honeywell Sensing and Control’s new SS360PT and SS460P High Sensitivity Latching Hall-Effect Sensor ICs come with built-in pull-up resistors and have been designed to combine both economy and high performance for demanding, cost-sensitive high-volume applications, such as commuting brushless DC motors used for medical equipment and appliances as well as for flow-rate sensing, speed and RPM sensing, tachometers, counter pickups, motor and fan controls.

The SS360PT/SS460P Hall-Effect sensors are able to provide reliable switching points with a high magnetic sensitivity of 30 Gauss typical, at 25 °C [77 °F], and 55 Gauss maximum over the full -40 °C to 125 °C [-40 °F to 257 °F] temperature range, allowing for the use of smaller magnets or a wider air gap. Because these sensor ICs do not use chopper stabilisation on the Hall element, they are able to provide a cleaner output signal and a faster latch response time when compared to competitive, chopper-stabilised, high sensitivity Hall-effect bipolar latching sensor ICs.

Latching magnetics make these sensors well-suited for accurate speed sensing and RPM (revolutions per minute) measurement.

The sub-miniature, SOT-23 surface mount package (SS360PT) allows for a compact design with automated component placement. The small, leaded, flat TO-92-style package (SS460P) also allows for a compact PC board layout design. A wide operating voltage range of 3 Vdc to 24 Vdc also provides for potential use in a wide range of applications. Built-in reverse voltage capability enhances the protection of the sensor and the circuits, and the robust design allows operation up to 125 °C [257 °F].

These Hall-Effect devices are available in two package styles: the SS360PT in the miniature SOT-23 surface mount package and the SS460P in the leaded, flat TO-92-style package. The SS360PT is supplied on tape and reel (3000 units per reel). The SS460P is available in a bulk package (1000 units per bag).

www.sensing.honeywell.com

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