SS109
Unipolar Hall Switch
Packages
Features and Benefits
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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
3 pin SOT23 (suffix SO)
3 pin SIP (suffix UA)
Functional Block Diagram
VDD
Voltage
Regulator
Application Examples
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Automotive, Consumer and Industrial
Solid-state switch
Interrupter
Speed detection
Angular position detection
Linear position detection
Proximity detection
OUT
Chopper
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
SECELECTRONICS [ SEC Electronics Inc. ]
