UNISONIC TECHNOLOGIES CO., LTD
SK1812
BIPOLAR LATCH TYPE
HALL - EFFECT FOR
HIGH-TEMPERATURE
OPERATION
LINEAR INTEGRATED CIRCUIT
1
SIP-3
DESCRIPTION
SK1812 is a semiconductor integrated circuit utilizing the Hall
effect. It has been so designed as to operate in the alternating
magnetic field especially at low supply voltage and operation over
extended temperature ranges to +125
℃
.This Hall IC is suitable for
application to various kinds of sensors, contactless switches, and the
like.
3
1
2
SOT-23
FEATURES
* Wide supply voltage range of 2.5V to 20V
* Wide temperature operation range of -20
℃
~+125
℃
* Alternating magnetic field operation
* TTL and MOS IC are directly drivable by the output
* The life is semipermanent because it employs contactless parts
* SIP-3 and SOT-23 package
*Pb-free plating product number: SK1812L
APPLICATIONS
* Speed sensor
* Position sensor
* Rotation sensor
* Contact-less sensor
* Motor control
ORDERING INFORMATION
Order Number
Normal
Lead Free Plating
SK1812-AE3-R
SK1812L-AE3-R
SK1812-G03-K
SK1812L-G03-K
Package
SOT-23
SIP-3
Pin Assignment
1
2
3
O
I
G
I
G
O
Packing
Tape Reel
Bulk
Note: Pin Assignment: I:V
CC
O:V
OUT
SK1812L-AE3-R
G:GND
(1) K: Bulk, R: Tape Reel
(2) AE3: SOT-23, G03: SIP-3
(3) L: Lead Free Plating, Blank: Pb/Sn
(1)Packing Type
(2)Package Type
(3)Lead Plating
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Copyright © 2005 Unisonic Technologies Co., Ltd
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QW-R118-008,A
SK1812
MARKING INFORMATION
LINEAR INTEGRATED CIRCUIT
SIP-3
1812
L: Lead Free Plating Blank: Pb/Sn
,
Date Code
SOT-23
1812
L: Lead Free Plating, Blank: Pb/Sn
BLOCK DIAGRAM
REGULATOR
Vcc
Output
GND
Hall element
Amplifier
Schmidt trigger
Output stage
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QW-R118-008,A
SK1812
ABSOLUTE MAXIMUM RATINGS
(Ta = 25℃)
PARAMETER
LINEAR INTEGRATED CIRCUIT
RATINGS
UNIT
Supply Voltage
2.5~20
V
Supply Current
10
mA
Circuit Current
20
mA
SIP-3
400
Power Dissipation
P
D
mW
SOT-23
200
Operating Temperature
T
OPR
-20 ~ +125
℃
Storage Temperature
T
STG
-55 ~ +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.
SYMBOL
V
CC
I
CC
I
O
ELECTRICAL CHARACTERISTICS
(Ta=25℃, unless otherwise specified.)
PARAMETER
Low-Level Output Voltage
Output Leakage Current
Output Short Circuit Current
Supply Current
SYMBOL
V
OL
I
LEAK
-Ios
I
CC
TEST CONDITIONS
V
CC
=16V, I
OUT
=12mA, B=30mT
V
CC
=3.6V, I
OUT
=12mA, B=30mT
V
CC
=16V,B=-30mT
V
CC
=16V,V
OUT
=0V,B=-30mT
V
CC
=16V
V
CC
=3.6V
MIN
TYP MAX UNIT
0.7
V
0.7
V
1
10
µA
0.8
mA
6
mA
5.5
mA
MAGNETIC CHARACTERISTICS
Operate Point
B
OP
Ta = +25℃
5
mT
Release Point
B
RP
Ta = +25℃
-5
mT
Hysteresis
B
HYS
Ta = +25℃
10
mT
NOTE: 1. B
OP
=operate point (output turns ON); B
RP
=release point (output turns OFF); B
HYS
=hysteresis(B
OP
– B
RP
).
As used here, negative flux densities are defined as less than zero (algebraic convention).
Typical values are at Ta = +25
℃
and V
CC
= 12V.
2. 1mT=10 gauss
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QW-R118-008,A
SK1812
PACKAGE INFORMATION
SIP-3
4.1 mm
0.95 mm
LINEAR INTEGRATED CIRCUIT
SOT-23
0.385 mm
2.01 mm
3.0 mm
1.00 mm
Fig. 1 SENSOR LOCATIONS
S
Marked face
1. Vcc
2. GND
3. Output
N
Marked face
1. Vcc
2. Output
3. GND
1
2
3
1
3
S
2
N
SIP-3
SOT-23
Vout
H
Bh
L
Brp
0
Magnetic flux density
Bop
Fig.2 APPLYING DIRECTION OF MAGNETIC FLUX
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QW-R118-008,A
SK1812
TYPICAL APPLICATION CIRCUIT
12V~3V
LINEAR INTEGRATED CIRCUIT
Pin 1
SK1812
SIP-3
Pin 3
Pin 2
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www.unisonic.com.tw
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QW-R118-008,A
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