General Description

The Melexis US4881 is a bipolar Hall-effect switch designed in mixed signal CMOS technology.

The device integrates a voltage regulator, Hall sensor with dynamic offset cancellation system, Schmitt trigger and an open-drain output driver, all in a single package.

The low operating voltage and extended choice of temperature range make it suitable for use in automotive, industrial and consumer low voltage applications.

Features and Benefits

❐ Operating voltage range from 2.2V to 18V

❐ Very high magnetic sensitivity

❐ CMOS technology

❐ Chopper-stabilized amplifier stage

❐ Low current consumption

❐ Open drain output

❐ Thin SOT23 3L and flat TO-92 3L both RoHS Compliant packages

Application Examples

❐ Automotive, Consumer and Industrial

❐ Solid-state switch

❐ Brushless DC motor commutation

❐ Speed detection

❐ Linear position detection

❐ Angular position detection

❐ Proximity detection