Honeywell has added SS360NT/SS360ST/SS460S High Sensitivity Bipolar Latching Digital Hall-effect Sensor Integrated Circuits to its portfolio of magnetic position sensor products. These devices, which are sensitive and small-sized, facilitate a quicker latch response time.
The devices can be used for RPM measurement and accurate speed sensing. Brushless DC motors require sensors that possess stable magnetics, rapid response times and high sensitivity. The new Honeywell ICs are well suited for this functionality as they do not have chopper stabilization.
The Honeywell SS360NT/SS360ST/SS460S can be used for transportation applications, such as motor and fan control, tachometer/counter pickup, RPM and speed sensing, positioning of convertible roofs, and for operating electronic window lifts. These sensors may be used for electric motors in medical equipment and for robotics control, motor control and other uses in commercial and industrial applications.
These sensors can operate from 3 to 24 V DC and can operate at temperatures ranging from -40°C to 150°C. It uses RoHS-compliant materials. Honeywell offers the sensors in two packaging styles – as a flat TO-92-style package and as a subminiature, SOT-23 surface mount package. The flat style package allows it to be used for PC board layouts, while the SOT-23 package allows it to be used for automated component placements.
The new sensors do not use chopper stabilization on the Hall element, and offer consistent switching points with typical 30 G magnetic sensitivity. This enables a clean output signal. The rapid response sensors provide consistent repeatability and respond to low magnetic fields.