www.angsemi.com Version 1.0
ANGSEMI Microelectronics Co., Ltd. All rights reserved. 25, Aug. 2017
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
AS1801AODSTRN
±18Gauss
±10Gauss
SOT23-3L
7-in reel
3000pcs/reel
-40～85℃
Green
AS1801AODMBN
±18Gauss
±10Gauss
SIP-3L
1K/Package
-40～85℃
RoHS
AS1801AODSTRY
±18Gauss
±10Gauss
SOT23-3L
7-in reel
3000pcs/reel
-40～125℃
Green
AS1801AODMBY
±18Gauss
±10Gauss
SIP-3L
1K/Package
-40～125℃
RoHS
General Description
Using low power CMOS process, the AS1801AOD
is designed for low power, high performance omnipolar
detection hall-effect application, such as cover switch,
contact less 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 AS1801AOD is
typically less than 3uA at 2.8V power supply.
AS1801AOD 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&SIP-3L
Package is rated over the -40°C to 85°C.
AS1801AOD
www.angsemi.com Version 1.0
ANGSEMI Microelectronics Co., Ltd. All rights reserved. 25, Aug. 2017
AS1801AOD
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
VDD
1
P
Input Power Supply
GND
2
P
Ground
OUTPUT
3
O
Output Pin.
Typical Application Circuit
Figure 1, Typical Application Circuit of AS1801AOD