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US5781L Datasheet

  • US5781L

  • CMOS High Sensitivity Switch

  • 6頁

  • ETC

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US5781
CMOS High Sensitivity Switch
Preliminary Datasheet
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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
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Solid state switch
Limit switch
Current limit
Interrupter
Ordering Information
Part No.
US5781
US5781
Temperature Suffix
E
L
y
r
a
in
im
l
e
r
P
Package
SO or UA
SO or UA
Temperature Range
-40擄C to 85擄C Extended
-40擄C to 150擄C Automotive
Functional Diagram
Description
The US5781 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 b switched on (B
OP
) in
e
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 (B
RP
)
in the presence of a weaker South field and remain
off with 鈥?鈥?field. The SOT-23 device is reversed
from the UA package. The SOT-23 output transis-
tor will be switched on (B
OP
) in the presence of a
sufficiently strong North pole magnetic field sub-
jected to the marked face.
V
DD
Output
Voltage
Regulator
Chopper
GND
UA Package
Pin 1 - V
D D
Pin 2 - GND
Pin 3 - Output
SO Package
Pin 1 - V
D D
Pin 2 - Output
Pin 3 - GND
Note: This is a
static-sensitive device; please observe ESD precau -
tions. Reverse V
DD
protection is not included. For reverse voltage
protection, a 100鈩esistor in series with V
DD
is recommended.
US5781 CMOS High Sensitivity Switch
3901005781 Rev 1.7
7/23/01
Page 1

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  • 英文版
    CMOS High Sensitivity Switch
    ETC
  • 英文版
    CMOS High Sensitivity Switch
    ETC [ETC]
  • 英文版
    Unipolar Hall Switch - Medium Sensitivity
    MELEXIS [M...
  • 英文版
    CMOS High Sensitivity Switch
    ETC
  • 英文版
    CMOS High Sensitivity Switch
    ETC [ETC]
  • 英文版
    CMOS High Sensitivity Switch
    ETC
  • 英文版
    CMOS High Sensitivity Switch
    ETC [ETC]
  • 英文版
    Unipolar Hall Switch - Medium Sensitivity
    MELEXIS [M...
  • 英文版
    Unipolar Hall Switch - Medium Sensitivity
    MELEXIS [M...
  • 英文版
    Unipolar Hall Switch - Medium Sensitivity
    MELEXIS [M...
  • 英文版
    Unipolar Hall Switch - Medium Sensitivity
    MELEXIS [M...
  • 英文版
    Unipolar Hall Switch - Medium Sensitivity
    MELEXIS [M...

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