General  Descriptions
The S1104 is a unipolar Hall-effect sensor IC fabricated                         
from CMOS technology. The device integrates a voltage
regulator, Hall sensor with dynamic offset cancellation
system, small signal amplifier, Schmitt trigger and an
open-drain output driver. With suitable output pull up, they
can be used with bipolar or CMOS logic circuits.
These Hall-effect switches are monolithic integrated circuits
with tighter magnetic specifications, designed to operate
continuously over extended temperatures to +150℃,and are
more stable with both temperature and supply voltage
changes. The unipolar switching characteristic makes these
devices ideal for use with a simple bar or rod magnet.
Thanks to its wide operating voltage range and extended
choice of temperature range, it  is quite suitable for use in
automotive, industrial and consumer applications.
The device is delivered in a Small Outline Transistor (SOT)
and in a Plastic Single In Line (TO-92 flat). Both 3-lead
packages are RoHS compliant. 
 

Features and Benefits                                            
–  3.5V to 24V Operation
–  -40℃ to 150℃ Superior temperature operation
–  CMOS technology
–  Low current consumption
–  Chopper-stabilized amplifier stage
–  Open drain output
–  Low sensitivity
–  Small Size-SOT23 3L and TO-92 3L
–  both RoHS compliant packages 
 

Application Examples                                 
–  Automotive, Consumer and Industrial
–  Solid-state switch
–  Brushless DC motor commutation
–  Speed detection
–  Angular position detection
–  Proximity detection
–  Current detector