SS3313
CMOS Omnipolar High Sensitivity Micropower Hall Switch
Features
Applications
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Solid-State Reliability much better than reed
switch
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Solid state switch
Speed detection
Interrupter
Magnet proximity sensor for reed switch re-
placement
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Omnipolar, output switches with absolute value
of North or South pole from magnet
Wide operating voltage range from 3.5V to 24V
High sensitivity for direct reed switch replace-
ment applications
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3 pin SOT23 (suffix SO)
3 pin SIP (suffix UA)
General Description
The SS3313 Omnipolar Hall effect sensor IC is fab-
ricated from mixed signal CMOS technology .It in-
corporates advanced chopper-stabilization techniques
to provide accurate and stable magnetic switch points.
The output transistor of the SS3313 will be latched on
(BOP) in the presence of a sufficiently strong South or
North magnetic field facing the marked side of the
package. The output will be latched off (BRP) in the
absence of a magnetic field.
The chopper stabilized amplifier uses switched capac-
itor techniques to eliminate the amplifier offset volt-
age, which, in bipolar devices, is a major source of
temperature sensitive drift. CMOS makes this ad-
vanced technique possible. The CMOS chip is also
much smaller than a bipolar chip, allowing very so-
phisticated circuitry to be placed in less space. The
small chip size also contributes to lower physical
stress and less power consumption.
Functional Block Diagram
1
V3.10 Nov 1, 2013
SECELECTRONICS [ SEC Electronics Inc. ]
