www.angsemi.com Version 1.2
ANGSEMI Microelectronics Co., Ltd. All rights reserved. 15, Jun. 2016
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
Lead
AS1801D4RN
±40Gauss
±23Gauss
DFN1216-4L
7-in reel 3000pcs/reel
-40～85℃
Green
Cu
AS1801WRN
±40Gauss
±23Gauss
SOT553
7-in reel 3000pcs/reel
-40～85℃
Green
Cu
AS1801STRN
±40Gauss
±23Gauss
SOT23-3L
7-in reel 3000pcs/reel
-40～85℃
Green
Cu
AS1801MBN
±40Gauss
±23Gauss
SIP-3L
1K/Package
-40～85℃
RoHS
Cu
General Description
Using low power CMOS process, the AS1801 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 AS1801 is
typically less than 1.8uA at 1.8V power supply. AS1801
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, SOT553,
DFN1216-4L and SIP-3L Package and is rated over the
-40°C to 85°C. The all packages are RoHS and Green
compliant.
Features
Input Voltage Range : 1.65V to 5.0V
Micro-power consumption ideal for battery
power applications
Omnipolar Operation, easy to use as output
Very high sensitivity hall sensor
Low Power CMOS process technology
Chopper stabilization amplifier stage
Magnetic Sensitivity (typical)
B
OP
=±40Gauss, B
RP
=±23Gauss
Good RF noise immunity
No need pull-up resistor
Small Solution Size
RoHS & Green Compliant
SOT23-3L, SOT553, DFN1216-4L & SIP-3L
Packages
-40℃ to +85 ℃ Temperature Range
Applications
Smart Meter
Cover switch
Contact-less switch
AS1801
AS1801XXX
Package：
D4: DFN1216-4L
W: SOT553
ST: SOT23-3L
M: SIP-3L
Packing：
R:Tape&Reel
B: Bulk
Temperature Grade：
N: -40°C~85°C
www.angsemi.com Version 1.2
ANGSEMI Microelectronics Co., Ltd. All rights reserved. 15, Jun. 2016
AS1801
Marking & Pin Assignment
DFN1216-4L
Pin Name
Pin No.
I/O
Pin Function
DFN1216-4L
VDD
4
P
Input Power Supply
GND
2
P
Ground
NC
3
-
Not Connected
OUTPUT
1
O
Output Pin
SOT553
Pin Name
Pin No.
I/O
Pin Function
SOT553
VDD
4
P
Input Power Supply
GND
2
P
Ground
OUTPUT
5
O
Output Pin
NC
1,3
-
Not Connected
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