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