US5881 查看數據表（PDF） - Unspecified
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US5881 Datasheet PDF : 6 Pages
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US5881
CMOS Multi-Purpose Switch
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.
US5881
US5881
Temperature Suffix
E
L
Package
SO or UA
SO or UA
Temperature Range
-40oC to 85oC Extended
-40oC to 150oC Automotive
*Contact factory or sales representative for legacy temperature options
Functional Diagram
VDD
Voltage
Regulator
Chopper
Output
UA Package
Pin 1 - V D D
Pin 2 - GND
Pin 3 - Output
GND
SO Package
Pin 1 - VD D
Pin 2 - Output
Pin 3 - GND
Description
The US5881 is a unipolar Hall effect sensor IC fab-
ricated from mixed signal CMOS technology. It in-
corporates advanced chopper stabilization tech-
niques to provide accurate and stable magnetic
switch points. There are many applications for this
sensor in addition to those listed above. The de-
sign, 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 pack-
age. 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 transis-
tor will be switched on (BOP) in the presence of a
sufficiently strong North pole magnetic field sub-
jected to the marked face.
Note: This is a static-sensitive device; please observe ESD precau -
tions. Reverse VDD protection is not included. For reverse voltage
protection, a 100Ωresistor in series with VDD is recommended.
US5881 CMOS Multi-Purpose Switch
3901005881 Rev 5.0
24/July/01
Page 1
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