[Melexis]

Description

The US1881 is the industry’s first Hall integrated circuit in SOT-23 package. The US1881 is a bipolar Hall effect sensor IC based on mixed signal CMOS technology. It incorporates advanced chopper stabilization techniques to provide accurate and stable magnetic switch points. There are many applications for this HED in addition to those listed above. The design, specifications and performance have been optimized for commutation applications in 5V and 12V brushless DC motors.

Features and Benefits

❐ Chopper stabilized amplifier stage

❐ Optimized for brushless DC motor applications

❐ Miniature high reliability package

❐ Operation down to 3.5V

❐ CMOS for optimum stability, quality and cost

❐ Low power consumption

Applications

❐ Solid state switch

❐ Brushless DC motor commutation

❐ Speed Sensing

❐ Linear position sensing

❐ Angular position sensing

❐ Current sensing