AH3564Q-SA-7 – Digital Switch Omnipolar Open Drain Hall Effect Magnetic Sensor SOT-23-3

Resources: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