General Description

Using low power CMOS process, the AS1916C is
designed for low power, high performance unipolar
detection hall-effect application, such as home
appliance, industrial, electric tools, brushless DC motor
etc, contactless switch, solid state switch and lid close
sensor etc battery operation. The 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 AS1916C is
typically less than 2.0mA at 3.6V power supply. AS1916C is designed to respond to alternating 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 small SOT23-3L
Package and is rated over the -40°C to 125°C. The all
packages are RoHS and Green compliant.

Features

 Input Voltage Range : 2.2V to 5.5V
 South Unipolar Operation
 Chopper stabilization amplifier stage
 Magnetic Sensitivity (typical)
BOP= 29Gauss, BRP= 18Gauss
 Good RF noise immunity
 Open-Drain Output Capable of 20mA
 Small Solution Size
 RoHS Compliant
 Small SOT23-3L Packages
 -40℃ to +125 ℃ Temperature Range

Applications

 Home Appliance
 Industrial Valves, Solenoids
 Contact-less switch in consumer products
 Solid State Switch
 Handheld Wireless Handset Awake Switch
 Lid close sensor for battery-powered devise
 Magnet proximity sensor for reed switch
replacement in low duty cycle applications
 Brushed DC Motor Feedback
 Docking Detection
 Door Open and Close Detection