AR127 Full-Polarity Micro-Power Hall Switch

  Ultra-low power Hall switch, push-pull output, built-in pull-up resistor, high sensitivity.

    The Hall element AR127 is a Hall IC designed and manufactured based on CMOS technology. The element integrates a Hall effect plate, voltage regulator, sleep-wake control circuit, signal amplification and filtering circuit, offset compensation circuit, Schmitt trigger, and complementary push-pull output. This IC adopts advanced chopper stabilization technology, enabling it to provide accurate and stable magnetic switching points. The internal controlled clock mechanism supplies a clock source for the Hall device and analog signal processing circuit. The Hall sensor AR127 operates through periodic sleep and wake cycles to achieve reduced power consumption. It detects the ambient magnetic field strength during wake periods and maintains the last output state during sleep.

    The Hall magnetic switch AR127 is available in SOT-23, TO-92S, and ultra-small, ultra-thin DFN packages, making it suitable for increasingly slim and lightweight portable mobile devices, such as small lithium battery-powered electronic products. All packages comply with RoHS environmental standards.

Product Features and Advantages

Ultra-low power consumption: 3μA

Equal sensitivity to N and S poles

Complementary push-pull output

High sensitivity

Operating voltage: 2~5V

Lead-free packages: SOT-23/TO-92/DFN