www.angsemi.com Version 1.0
ANGSEMI Microelectronics Co., Ltd. All rights reserved. 15, Aug. 2022
ANGSEMI Datasheet
Magnetic Sensor IC
Omnipolar Detection High
Performance Low Power
Hall-Effect Sensor IC
Ordering Information
Part Number
B
OP
(Gauss)
B
RP
Gauss)
Package Type
Package Qty
Temperature
Eco Plan
AS1809STRN
±10Gauss
±7Gauss
SOT23-3L
7-in reel 3000pcs/reel
-40～85℃
Green
AS1809MBN
±10Gauss
±7Gauss
SIP-3L
1K/Package
-40～85℃
RoHS
General Description
Using low power CMOS process, the AS1809 is
designed for low power, high performance omnipolar
detection hall-effect application, such as cover switch,
contactless switch, solid state switch and lid close
sensor etc battery operation. The hall IC integrated an
on-chip hall voltage generator for magnetic sensing, a
comparator that amplifiers the hall voltage, a Chopper
amplifier, a Schmitt trigger to provide switching
hysteresis for noise rejection, and a complementary
output.
The total power consumption of AS1809 is
typically less than 2.5uA at 2.8V power supply. AS1809
is designed to respond to alternating North and South
poles. When the magnetic flux density (B) is larger than
operate point (B
OP
), the output will be turned on (low),
the output is held until the magnetic flux density (B) is
lower than release point (B
RP
), then turn off (high).
The device is available in SOT23-3L and SIP-3L
Package and is rated over the -40°C to 85°C. The all
packages are RoHS and Green compliant.
AS1809
www.angsemi.com Version 1.0
ANGSEMI Microelectronics Co., Ltd. All rights reserved. 15, Aug. 2022
AS1809
Marking & Pin Assignment
SOT23-3L
Pin Name
Pin No.
I/O
Pin Function
SOT23-3L
VDD
1
P
Input Power Supply
GND
3
P
Ground
OUTPUT
2
O
Output Pin
SIP-3L
Pin Name
Pin No.
I/O
Pin Function
SIP-3L
VCC
1
P
Input Power Supply
GND
2
P
Ground
OUTPUT
3
O
Output Pin.
Typical Application Circuit
Figure 1, Typical Application Circuit of AS1809