UNISONIC TECHNOLOGIES CO., LTD
UH8100
LOW POWER HALL EFFECT
SWITCH
DESCRIPTION
3
CMOS IC
UH8100
is a low-power integrated Hall switch designed to sense the
applied magnetic flux density and give a digital output, which indicates
the present condition of the magnitude sensed.
It mainly designed for battery-powered system and hand-held
equipment, such as cellular flip-phones and PDA’s, in which power
consumption is one major concern. The typical power consumption of
UH8100
is down to 15uW at 2.75V supply.
For
UH8100,
the output will be high when no magnetic field is
applied and be low when the applied magnetic flux density is stronger
than the switching threshold. The difference between
UH8100A
and
UH8100B
is that
UH8100A
consumes less power than
UH8100B
in the
Hall sensor operation.
1
2
SOT-23
(EIAJ SC-59)
FEATURES
* Micro power Operation
* 2.5V to 5.5V Battery Operation
* Offset Canceling Technology
* Superior Temperature Stability
* Extremely Low Switch-Point Drift
* Insensitive to Physical Stress
ORDERING INFORMATION
Ordering Number
UH8100AG-AE3-R
UH8100BG-AE3-R
Pin Assignment: O: V
OUT
, I: V
DD
, G: GND
Package
SOT-23
SOT-23
Pin Assignment
1
2
3
O
I
G
O
I
G
Packing
Tape Reel
Tape Reel
Note:
MARKING
UH8100A
UH8100B
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Copyright © 2015 Unisonic Technologies Co., Ltd
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QW-R502-413.E
UH8100
PIN CONFIGURATIONS
CMOS IC
PIN DESCRIPTION
PIN NAME
PIN TYPE
PIN DESCRIPTION
V
OUT
O
Digital Output
V
DD
P
Power Supply
GND
G
Ground
Note: O=Output, P=Power Supply, G=Ground
BLOCK DIAGRAM
OUTPUT
V
DD
O f f s et C a n c e l l i n g
L o g i c Co n t r o l
Hall Plate
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
A MP
GND
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QW-R502-413.E
UH8100
ABSOLUTE MAXIMUM RATING
(T
A
=25°C)
CMOS IC
PARAMETER
SYMBOL
RATINGS
UNIT
Magnetic Flux Density
B
Unlimited
mT
Supply Voltage
V
DD
7
V
Output Current
I
O
10
mA
Package Power Dissipation
P
D
230
mW
Junction Temperature
T
J
150
°C
Operation Temperature
T
OPR
-40 ~ +85
°C
Storage Temperature
T
STG
-65 ~ +150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
RECOMMENDED OPERATING CONDITIONS
(
T
A
=25°C
)
SYMBOL
V
DD
CONDITIONS
Operating
MIN
2.5
TYP
MAX
5.5
UNIT
V
PARAMETER
Supply Voltage
ELECTRICAL CHARACTERISTICS
(T
A
=25°C)
SYMBOL
V
OUT
I
OFF
I
DD(AVG)
T
AWAKE
T
PERIOD
D.C.
CONDITIONS
V
DD
=3V, I
OUT
=1mA
V
DD
=3V, V
OUT
=5.5V, B<B
RP
UH8100A
V
DD
=3V,
average supply current
UH8100B
V
DD
=3V
V
DD
=3V,UH8100A
V
DD
=3V,UH8100B
V
DD
=3V,UH8100A
V
DD
=3V,UH8100B
MIN
TYP
0.1
0.01
5
280
50
50
200
0.1
25
MAX
0.3
1
10
500
100
100
400
UNIT
V
uA
uA
uA
us
ms
us
%
%
PARAMETER
Output On Voltage
Output Leakage Current
Supply Current
Awake Time
Period
Duty Cycle
MAGNETIC CHARACTERISTICS
( T
A
=25°C, V
DD
=3V)
SYMBOL
|B
OP
|
|B
RP
|
|B
OP
–B
RP
|
MIN
10
TYP
40
30
10
MAX
60
UNIT
Gauss
PARAMETER
Operation Points
Release Points
Hysteresis
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R502-413.E
UH8100
TYPICAL APPLICATION CIRCUIT
CMOS IC
3
GND
V
DD
2
OUTPUT
1
Digital Output
Pull up resistor
(Reconmand 50K)
2.5~5.5V
MAGNETIC FLUX
Output
OFF-state
Output Voltage
Turn off
Turn on
ON-state
0
B
RP
B
OP
B
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R502-413.E
Microchip MCU
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