Diodes Incorporated AH356xQ Automotive Hall Effect Switches

Diodes Incorporated AH356xQ Automotive Hall Effect Switches are AECQ100 qualified high-voltage and high-sensitivity omnipolar switches. These hall effect switches are designed for position and proximity sensing in automotive applications. The AH356xQ switches come with chopper-stabilized architecture and an internal bandgap regulator that provides temperature compensated supply for internal circuits. These hall effect switches incorporate a reverse blocking diode and a Zener clamp on the supply. The AH356xQ switches provide single open drain output with an overcurrent limit and a Zener clamp. Typical applications include open and close detection, position detection, level detection, flow meters, contactless switches, seatbelt buckle, and seat position.

Features

AECQ100 qualified
Omnipolar operation
Single open drain output with overcurrent limit
Zener clamp on supply and output pins
Reverse blocking diode
Good Radio Frequency (RF) noise immunity

Chopper stabilized design provides:
- Superior temperature stability
- Minimal switch point drift
- Enhanced immunity to stress
3V to 28V operating voltage range
-40°C to 150°C operating temperature range

Applications

Position and proximity sensing in automotive applications:
- Seat and seatbelt buckle
- Steering lock/immobilization
- Gear stick
- Transmission actuator and gear position
- Heating Ventilation and Air Conditioning (HVAC) compression
- Wiper
- Door/trunk closure