UNISONIC TECHNOLOGIES CO., LTD
UH8103
Preliminary
BiCMOS IC
HALL EFFECT MICRO SWITCH
IC
DESCRIPTION
The UH8103 is a low power, pole independent Hall-effect switch
with a latched digital output driver. It can work in 2.5 volt supply.
Either a north or south pole of sufficient flux will turn the output on; in
the absence of a magnetic field, the output is off.
When a magnetic field enters the hall element and exceeds the
operate point B
OPS
(or less than B
OPN
) the output turns on (output is
low). When the magnetic field is below the release point B
RPS
, the
output turns off (output is high). It is designed with open drain
configuration and connecting a pull up resistor from Output to VDD is
necessary.
3
2
1
SOT-23
FEATURES
*Micropower Operation
*2.5V to 5.5V Battery Operation
*Offset Canceling Technology
*Independent of North or South Pole Magnet
*Superior Temperature Stability
*Extremely Low Switch-Point Drift
APPLICATIONS
*Micro Switch
*Handheld Wireless Application Wake Up Switch
*Clamp Shell Type Application Switch
*Magnet Switch in Low Duty Cycle Applications
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
UH8013L-AE3-R
UH8013G-AE3-R
Note: O: Output, I: V
DD
, G: GND
Package
SOT-23
Pin Assignment
1
2
3
O
I
G
Packing
Tape Reel
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
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QW-R502-513.a
UH8103
BLOCK DIAGRAM
Preliminary
BiCMOS IC
TYPICAL CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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UH8103
PARAMETER
Preliminary
BiCMOS IC
ABSOLUTE MAXIMUM RATING
(T
a
=25℃,
Note
)
SYMBOL
RATINGS
UNIT
Supply Voltage
V
DD
7
V
Magnetic Flux Density
B
Unlimited
Output current
I
OUT
10
mA
Package Power Dissipation
P
D
230
mW
Junction Temperature
T
J
150
℃
Operation Temperature
T
OPR
-40 ~ +85
℃
Storage Temperature
T
STG
-65 ~ +150
℃
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℃
)
PARAMETER
Supply Voltage
SYMBOL
V
DD
Conditions
Operating
MIN
2.5
TYP
---
MAX
5.5
UNIT
V
ELECTRICAL CHARACTERISTICS
(T
A
=25℃, VDD=3V)
Symbol
V
DD
I
DD
Characteristic
Supply Voltage Range
Supply Current
Conditions
Operating
Average
Awake
Sleep
V
OUT
= 3.5V,
B
RPN
<B<B
RPS
I
SINK
= 1mA
Min
2.5
5
1.2
2
UH8103
Typ
Max
5.5
10
2
8
1
20
180
60
0.3
40
Unit
V
uA
mA
uA
uA
mV
uS
mS
%
I
OFF
V
OL
t
awake
t
period
d.c.
Output Leakage Current
Output Low Voltage
Wake up Time
Period
Duty cycle
MAGNETIC CHARACTERISTICS
( T
A
=25℃, VDD=3V, 1mT=10Gauss )
Symbol
B
OPS
B
OPN
B
RPS
B
RPN
B
hys
Characteristic
Operation Points
Release Points
Hysteresis
MIN
-75
10
TYP
50
-50
35
-35
15
MAX
75
UNIT
Gauss
-10
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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UH8103
MAGNETIC FLUX
Preliminary
BiCMOS IC
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
Output Voltage
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