The AH8113 is an integrated hall-effect sensor
designed specifically to meet the requirements of
low-power devices. e.g. as an On/Off switch in
Cellular Flip-Phones, with battery operating voltages
of 1.65V-5.5V.
Precise magnetic switching points and high
temperature stability are achieved through the unique
design of the internal circuit. An onboard clock
scheme is used to reduce the average operating
current of the IC. During the operate phase the IC
compares the actual magnetic field detected with the
internally compensated switching points. The output
Voltage is switched at the end of each operating
phase. During the Stand-by phase the output stage is
latched and the current consumption of the device
reduced to some μA.
The IC switching behavior is Omnipolar; it can be
switched on with either the North or South pole of a
magnet.
The AH8113 is available in TSOT-23 and TO-92S
packages.
Micro power design
1.65 V to 5.5 V battery operation
High sensitivity and high stability of the
magnetic switching points
High resistance to mechanical stress
Digital output signal
Switching for both poles of a magnet
(omnipolar)
Not suitable for automotive application
Available in TSOT-23 and TO-92S packages
Cover switch in clam-shell cellular phones
Cover switch in Notebook PC/PDA
Contact-less switch in consumer products