AR471 Genuine Hall Switch with ultra-low power consumption, push-pull output, built-in resistor, and high sensitivity.

    The Hall element AR471 is a Hall IC designed and manufactured based on CMOS technology. It 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 utilizes 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 AR471 operates through periodic sleep and wake cycles to achieve reduced power consumption. During wake periods, it detects the ambient magnetic field strength, while in sleep mode, it maintains the last output state.

    The Hall magnetic switch AR471 is available in TSOT-23, TO-92S, and ultra-small, ultra-thin DFN packages, making it suitable for increasingly slim and lightweight portable mobile devices, such as small electronics powered by lithium batteries. All packages comply with RoHS environmental standards.

Product Features and Advantages

Ultra-low power consumption, IDD=5uA

Equally sensitive to N and S poles

Complementary push-pull output

Low sensitivity temperature drift

High sensitivity

Operating voltage 1.8~5.5V

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