General Description

Using low power CMOS process, the AS1190 is
designed for low power, high performance omnipolar
detection 3D hall-effect application. The 3D hall IC
integrated an on-chip hall voltage generator for
magnetic sensing, a comparator that amplifiers the hall
voltage, a Chopper amplifier, a Schmitt trigger to
provide switching hysteresis for noise rejection, and a
complementary output.
The total power consumption of AS1190 is
typically less than 1.3uA at 1.8V power supply. AS1190
is designed to respond to alternating North and South
poles. When the magnetic flux density (B) is larger than
operate point (BOP), the output will be turned on (low),
the output is held until the magnetic flux density (B) is
lower than release point (BRP), then turn off (high).
The device is available in SOT23-3L and is rated
over the -40°C to 125°C. The all packages are RoHS
and Green compliant.

Features

 3D (X, Y, Z) Magnetic Flux Switch
 Omnipolar Operation, easy to use as output
 Input Voltage Range : 1.65V to 5.5V
 Micro-power consumption ideal for battery
power applications: 1.3uA/1.8V
 Very high sensitivity hall sensor
 Low Power CMOS process technology
 Chopper stabilization amplifier stage
 High Magnetic Sensitivity
 Good RF noise immunity
 No need pull-up resistor
 Small Solution Size
 RoHS & Green Compliant
 SOT23-3L Packages
 -40℃ to +85 ℃ Temperature Range

Applications

 Smart Meter
 Cover switch
 Contact-less switch
 Air Cylinder, Antitheft window, Digital door lock
 Water Purifier, Humidifier Bidet
 Water Meter, Gas Meter, Watttmeter etc
 Washing Machine,Rice Cooker, Refrigerator,
Electronic Dictionary, Digital Camera etc