Datasheet

UNISONIC TECHNOLOGIES CO., LTD
SK8509
LINEAR INTEGRATED CIRCUIT
HALL-EFFECT SENSOR IC

DESCRIPTION
SK8509 is a semiconductor integrated circuit utilizing the Hall
effect. It has been so designed as to operate in the accurately track
extremely small changes in magnetic flux density-changes generally
too small to operate Hall-effect switches. This Hall IC is suitable
for application to various kinds of sensors, contact-less switches,
motion detectors, gear tooth sensors, and proximity detectors, and
the like.

1
SIP-3
3
FEATURES
2
* Wide Supply Voltage Range of 4V to 7V
* Wide Temperature Operation Range of -20°С ~+85°С
* The Life is Semipermanent because it Employs Contactless Parts

SOT-23
(EIAJ SC-59)
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
SK8509L-AE3-R
SK8509G-AE3-R
SK8509L-G03-B
SK8509G-G03-B
SK8509L-G03-K
SK8509G-G03-K
Note: Pin Assignment: I: VCC O: VOUT G: GND

1
Package
SOT-23
SIP-3
SIP-3
Pin Assignment
1
2
3
O
I
G
I
G
O
I
G
O
Packing
Tape Reel
Tape Box
Bulk
MARKING
SIP-3
www.unisonic.com.tw
Copyright © 2013 Unisonic Technologies Co., Ltd
SOT-23
1 of 6
QW-R118-010,E
SK8509

LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
REGULATOR
VCC
Output
GND
Hall Element
Amplifier
Control Block
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
Output Stage
2 of 6
QW-R118-010,E
SK8509

LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC
7V
V
Supply Current
ICC
10
mA
Operating Ambient Temperature
TOPR
-20~+85
°C
Storage Temperature
TSTG
-55~+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.

ELECTRICAL CHARACTERISTICS (TA=25°C, VCC=5V)
PARAMETER
Operating Voltage
Quiescent Output Voltage
Supply Current
Sensitivity
SYMBOL
VCC
VOUT
ICC
∆VOUT
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
TEST CONDITIONS
B=0G
MIN
4
2.25
B=0G ~ ±900G
0.75
TYP
2.50
3
1.30
MAX UNIT
7
V
2.75
V
10
mA
1.75 mV/G
3 of 6
QW-R118-010,E
SK8509

LINEAR INTEGRATED CIRCUIT
PACKAGE INFORMATION
Fig. 1 SENSOR LOCATIONS
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 6
QW-R118-010,E
SK8509

LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 6
QW-R118-010,E
SK8509
LINEAR INTEGRATED CIRCUIT
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
6 of 6
QW-R118-010,E