UNISONIC TECHNOLOGIES CO., LTD
UH8102
LOW POWER HALL EFFECT
SWITCH
DESCRIPTION
UH8102
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 at down to 10uW in 2.7V supply.
For
UH8102A,
the output will be at the “Low” level when no
magnetic field is applied. When the applied magnetic flux density
is stronger than the switching threshold, the output would be at the
“High” level.
For
UH8102B,
the output will be at the “High” level when no
magnetic field is applied. When the applied magnetic flux density
is stronger than the switching threshold, the output would be at the
“Low” level.
3
CMOS IC
2
1
SOT-23
FEATURES
*Micropower Operation
*2.4V to 5.5V Battery Operation
*Offset Canceling Technology
*Superior Temperature Stability
*Extremely Low Switch-Point Drift
*Insensitive to Physical Stress
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
UH8102AL-AE3-R
UH8102AG-AE3-R
UH8102BL-AE3-R
UH8102BG-AE3-R
Note: O: Output, 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
UH8102X G-AE3-R
(1) Packing Type
(2) Package Type
(3) Halogen Free
(4) Magnetic Perform
(1) R:Tape Reel
(2)
AE3:SOT-23
(3) L: Lead Free, G:Halogen Free
(4) A: LOW
(4)
B: HIGH
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
1 of 7
QW-R502-414.C
UH8102
ABSOLUTE MAXIMUM RATING
CMOS IC
PARAMETER
SYMBOL
RATINGS
UNIT
Magnetic Flux Density
B
Unlimited
mT
Supply Voltage
V
DD
5.5
V
Supply current
I
Q
-1 ~ +2.5
mA
Junction Temperature
T
J
150
°C
Operation Temperature
T
OPR
-40 ~ +85
°C
Storage Temperature
T
STG
-40 ~ +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
)
PARAMETER
Supply Voltage
Output Voltage
Ambient Temperature
SYMBOL
V
DD
V
OUT
T
A
CONDITIONS
Operating
MIN
2.4
-0.3
-40
TYP
2.7
2.7
25
MAX
5.5
5.5
85
UNIT
V
V
°C
ELECTRICAL CHARACTERISTICS
(T
A
=25°C)
PARAMETER
Output Saturation Voltage
Output Leakage Current
Supply Current
Operating Time
Standby Time
Duty Cycle
SYMBOL
V
SAT
I
OFF
I
DD(EN)
I
DD(DIS)
I
DD(AVG)
T
OP
T
SD
D.C.
CONDITIONS
V
DD
=2.7V
V
DD
=2.7V
Chip enable
MIN
TYP
0.1
0.01
1.1
2.5
3
60
150
0.04
MAX
UNIT
V
uA
mA
uA
uA
us
ms
%
20
V
DD
=2.7V
MAGNETIC CHARACTERISTICS
( T
A
=25°C,V
DD
=2.7V)
For UH8102A (LOW level when no magnetic field is applied)
Rank 1
PARAMETER
SYMBOL
MIN
Operation Points
|B
OP
|
7
Release Points
|B
RP
|
15
Hysteresis
|B
OP
–B
RP
|
5
Rank 2
PARAMETER
SYMBOL
MIN
Operation Points
|B
OP
|
7
Release Points
|B
RP
|
15
Hysteresis
|B
OP
–B
RP
|
5
For UH8102B (HIGH level when no magnetic field is applied)
Rank 1
PARAMETER
SYMBOL
MIN
Operation Points
|B
OP
|
15
Release Points
|B
RP
|
7
Hysteresis
|B
OP
–B
RP
|
5
Rank 2
PARAMETER
SYMBOL
MIN
Operation Points
|B
OP
|
15
Release Points
|B
RP
|
7
Hysteresis
|B
OP
–B
RP
|
5
TYP
15
25
10
TYP
MAX
25
35
15
MAX
50
70
50
UNIT
Gauss
UNIT
Gauss
TYP
25
15
10
TYP
MAX
35
25
15
MAX
70
50
50
UNIT
Gauss
UNIT
Gauss
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 7
QW-R502-414.C
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