AS1826A
Dual Outputs for both S and N-pole Low Power Hall-Effect Sensor IC
General
Description
Using low power CMOS process, the AS1826A is designed for low power, high performance unipolar detection dual output hall-effect application, such as cover switch, 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, andtwo
complementary output.
The total power consumption of AS1826A is typically less than 3.0uA at 1.8V power supply. AS1826A is designed to respond to alternating North and
South poles. White 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 DFN1014-4L and SOT343 Package and is rated over the -40°C to 85°C. The
all packages are
RoHS and
Green compliant.
Features
● Input Voltage Range : 1.6V to 5.0V
● Micro-power consumption ideal for battery power applications
● Unipolar Operation, dual output
● Very high sensitivity hall sensor● Low Power CMOS process technology
● Chopper stabilization amplifier stage
● Magnetic Sensitivity (typical) BOPS=26Gauss, BRPS=16Gauss BOPN= -26Gauss, BRPN= -16Gauss
● Good RF noise immunity
● No need pull-up resistor
● Small Solution Size
● RoHS & Green Compliant
● DFN1014-4L & SOT343 Packages
● -40℃ to +85 ℃ Temperature Range
Applications
● Cover switch in clam-shell cellular phones
● Cover switch in Notebook, PC/PAD
● 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
● DV, DSC, and White Goods
