General Description

Using BCD process, the AS1154 is designed for
high performance Omnipolar detection hall-effect
application, such as automotive, industrial, electric
tools, home appliances, rotor position sensing, brushless DC motor etc. The hall IC integrated an
on-chip hall voltage generator for magnetic sensing, a
comparator that amplifiers the hall voltage, hall sensor
with dynamic offset cancellation system, an pull-up
resistance, and a Schmitt trigger to provide switching
hysteresis for noise rejection, and a voltage regulator
for operation with supply voltage of 2.7V to 40V. AS1154 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 (High), the output is held until the magnetic
flux density (B) is lower than release point (BRP), then
turn off (low). The device is available in SOT23-3L Package and
is rated over the -40°C to 125°C. The all packages are
RoHS and Green compliant.

Features

 X and Z-axis Magnetic Flux Omnipolar Switch
 Omnipolar Operation, easy to use as output
 Input Voltage Range : 2.7V to 40V
 Very high sensitivity hall sensor
 Chopper stabilization amplifier stage
 High Magnetic Sensitivity
 X-axis: BOP=±60Gauss, BRP=±40Gauss
 Z-axis: BOP=±30Gauss, BRP=±20Gauss
 Good RF noise immunity
 PNP Open-Collector Output
 Small Solution Size
 RoHS & Green Compliant
 SOT23-3L Package
 -40℃ to +125 ℃ Temperature Range

Applications

 Smart Meter
 Replace the Reed 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