DESCRIPTION

· The AH3522/AH3524 is a high-voltage, high-sensitivity Hall-effect omnipolar switch IC designed for proximity, position, and level sensing in various applications.

· Operates over a supply range of 3.0V to 28V with chopper-stabilized architecture and internal bandgap regulator for temperature compensation.

· Features reverse blocking diode and Zener clamp on supply, with over-current limit and Zener clamp on output.

FEATURES

· Omnipolar operation with high sensitivity (B OP and B RP of ±20G to ±40G and ±10G to ±25G).

· Single open-drain output with over-current limit, resistant to physical stress.

· Chopper-stabilized design ensures superior temperature stability, minimal switch point drift, and enhanced immunity to stress.

· Good RF noise immunity, reverse blocking diode, Zener clamp on supply and output pins.

· Operating temperature range from -40°C to +125°C, high ESD HBM: 8kV.

· Available in SOT23, SIP-3 (Ammo Pack), and SIP-3 (Bulk Pack) packages, fully RoHS compliant and halogen-free.

APPLICATIONS

· Position and proximity sensing in home appliances, building automation, office equipment, and industrial applications.

· Open and close detection, position detection, level detection, flow meters, and contactless switches.