Description :

• -The AH1815 is an integrated Hall-Effect non-latched sensor

• -It functions by toggling the output pin when a magnet is held near the sensor, making it a robust presence sensor

• -Low-sensitivity, micro-power Omnipolar Hall effect switch IC

• -Designed for portable and battery-powered consumer equipment, home appliance, and industrial applications such as smart-meter magnetic-

  tamper detection

• -Based on two sensitive Hall effect plates and a chopper-stabilized architecture

• -Operating range of 2.5V to 5.5V, consuming only 24µW with a supply of 3V

• -Single open drain output can switch on with either a north or south pole of sufficient strength

• -Output is switched on (pulled low) when the magnetic flux density perpendicular to the package is larger than the operating point (Bop)

• -Output is turned off when the magnetic flux density becomes lower than the releasing point (Brp)

• -Output remains off when there is no magnetic field

• -Omnipolar (North or South pole) Operation

• -Low Sensitivity

• -Single Open Drain Output

• -Micropower Operation

• -2.5V to 5.5V Operating Range

• – -40°C to +125°C Operating Temperature

• -Chopper Stabilized Design Provides Superior Temperature Stability Minimal Switch Point Drift -Enhanced Immunity to Stress