SS109 Datasheet, PDF (1/6 Pages) SEC Electronics Inc. – Unipolar Hall Switch

Packages
3 pin SOT23 (suffix SO)
SS109
Unipolar Hall Switch
3 pin SIP (suffix UA)
Features and Benefits
– Wide operating voltage range from 2.5V to 24V
– Medium sensitivity
– CMOS technology
– Chopper-stabilized amplifier stage
– Superior temperature stability
– Insensitive to physical stress
– Open drain output
– Low current consumption
– Small Size-SOT23 3L or SIP 3L
both RoHS Compliant packages
Functional Block Diagram
VDD
Voltage
Regulator
Chopper
OUT
Application Examples
– Automotive, Consumer and Industrial
– Solid-state switch
– Interrupter
– Speed detection
– Angular position detection
– Linear position detection
– Proximity detection
Hall
Plate
GND
SIP Package
Pin 1 – V_DD
Pin 2 – GND
Pin 3 – OUT
SOT Package
Pin 1 – V_DD
Pin 2 – OUT
Pin 3 – GND
General Description
The SS109 is a unipolar Hall effect sensor IC fabricated
from mixed signal CMOS technology. The device
integrates a voltage regulator, Hall sensor with dynamic
offset cancellation system, Schmitt trigger and an
open-drain output driver, all in a single package.
It incorporates advanced chopper stabilization techniques to provide accurate and stable magnetic switch points. There
are many applications for this HED – Hall Electronic Device - in addition to those listed above.
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) or in a Plastic Single In Line ( SIP 3L flat). Both 3-lead
packages are RoHS compliant.
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V2.10 May 1, 2012