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Datasheet
Automotive Grade Omnipolar Hall Effect Magnetic Switch Sensor With Open Drain Output In SOT-23-3 Package
The AH3564Q-SA-7 Digital Switch Omnipolar Open Drain Hall Effect Magnetic Sensor is an automotive-qualified magnetic sensing IC designed for reliable position and proximity detection in demanding automotive and industrial applications. Qualified to AEC-Q100 standards, this high-sensitivity Hall effect sensor detects both north and south magnetic poles and provides a digital open-drain output for robust contactless switching. Its wide operating voltage range and enhanced protection features make it suitable for automotive electronics, smart actuators, and industrial embedded systems.
Built with chopper-stabilized architecture and an internal temperature-compensated bandgap regulator, the AH3564Q-SA-7 ensures stable magnetic switching performance across extreme operating conditions. The sensor supports operation from 3.0 V to 28 V and delivers reliable performance over temperatures from -40 degrees C to +150 degrees C. Integrated reverse blocking protection, overcurrent limiting, Zener clamps, and high ESD immunity improve system reliability in electrically noisy and harsh automotive environments.
Key Features
- Automotive Grade Hall Sensor: AEC-Q100 qualified for automotive and industrial applications.
- Omnipolar Magnetic Detection: Detects both north and south magnetic poles for flexible sensing operation.
- High Sensitivity Magnetic Switching: Typical BOP and BRP values of plus minus 40 G and plus minus 25 G.
- Open Drain Digital Output: Single open-drain output compatible with multiple logic voltage systems.
- Wide Operating Voltage Range: Supports 3.0 V to 28 V supply voltage operation.
- Compact SOT-23-3 Package: Small surface-mount package suitable for compact PCB designs.
- Chopper Stabilized Design: Improved temperature stability and minimal switch-point drift.
- Overcurrent Protection: Integrated output overcurrent limiting for enhanced reliability.
- Reverse Blocking Diode: Protects against reverse polarity supply conditions.
- Integrated Zener Clamp Protection: Enhanced supply and output pin protection.
- High ESD Immunity: Human Body Model ESD greater than 8 kV and CDM greater than 2 kV.
- Wide Temperature Support: Reliable operation from -40 degrees C to +150 degrees C.
- Good RF Noise Immunity: Stable operation in electrically noisy environments.
Applications
- Automotive seat position sensing
- Seatbelt buckle detection
- Steering lock systems
- Gear position sensing
- Transmission actuator control
- HVAC compressor monitoring
- Automotive door and trunk detection
- Wiper system sensing
- Industrial automation systems
- Contactless proximity detection
