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Datasheet
Ultra Low Power Omnipolar Hall Effect Switch Sensor IC With Digital Output In SC-59-3 Package
The AH1912-W-7 Ultra Low Power Digital Omnipolar Hall Effect Switch Sensor IC is a highly efficient magnetic sensing device designed for battery-powered and low-power embedded applications. Built using advanced Hall-effect sensing technology, this omnipolar magnetic switch detects both north and south magnetic poles and provides a digital open-drain output for reliable contactless switching. With ultra-low average current consumption of only 1.6 microampere at 3 V, the sensor is ideal for portable electronics, smart utility meters, IoT devices, and wireless embedded systems.
The AH1912-W-7 features a hibernating clocking system that significantly reduces power consumption while maintaining stable magnetic detection performance. Its wide operating voltage range from 1.6 V to 5.5 V supports low-voltage microcontrollers and battery-powered applications. The advanced chopper-stabilized design improves magnetic switching stability across temperature and supply-voltage variations, while high ESD protection enhances system reliability in industrial and consumer electronic environments.
Key Features
- Ultra Low Power Consumption: Typical average supply current of only 1.6 microampere at 3 V.
- Omnipolar Magnetic Detection: Detects both north and south magnetic poles for flexible switching applications.
- Wide Operating Voltage Range: Supports 1.6 V to 5.5 V supply voltage operation.
- Digital Open Drain Output: Logic-compatible digital switching interface for embedded systems.
- Compact SC-59-3 Package: Small surface-mount package suitable for compact PCB layouts.
- Hibernating Clock System: Optimized for low-power battery-operated devices.
- Chopper Stabilized Design: Stable magnetic switching performance over temperature and voltage variations.
- High ESD Protection: Supports ESD protection up to 6 kV for improved robustness.
- Contactless Magnetic Switching: Eliminates mechanical wear and improves operational lifespan.
- Low Voltage MCU Compatible: Suitable for modern low-power microcontroller systems.
Applications
- Battery-powered IoT devices
- Smart gas meters
- Water metering systems
- Smoke detectors
- Portable electronics
- Smart-home devices
- Magnetic position sensing
- Embedded-system development
- Contactless switching systems
- Consumer electronic products
