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US5881KUA.pdf

Description

The US5881 is a unipolar Hall effect sensor IC fabricated from mixed signal CMOS technology. It incorporatesnadvanced chopper stabilization techniques to provide accurate and stable magnetic
switch points. There are many applications for this sensor in addition to those listed above. The design,
specifications and performance have been optimized for applications of solid state switches.

The output transistor will be switched on (BOP) in the presence of a sufficiently strong South pole
magnetic field facing the marked side of the package. Similarly, the output will be switched off (BRP)
in the presence of a weaker South field and remain off with ¡°0¡± field. The SOT-23 device is reversed
from the UA package. The SOT-23 output transistor will be switched on (BOP) in the presence of a
sufficiently strong North pole magnetic field subjected to the marked face.

Features and Benefits
¡¤ Chopper stabilized amplifier stage
¡¤ New miniature package / thin, high reliability package
¡¤ Operation down to 3.5V
¡¤ CMOS for optimum stability, quality and cost
Applications
¡¤ Solid state switch
¡¤ Limit switch
¡¤ Current limit
¡¤ Interrupter
¡¤ Current sensing
Ordering Information
Part No.       Temperature           Suffix Package                Temperature Range
US5881             E                         SO or UA                    -40oC to 85oC Extended
US5881             L                          SO or UA                    -40oC to 150oC Automotive

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