AH182/AH183
LOW POWER HALL EFFECT SWITCH
Features
•
•
•
•
•
•
•
•
•
Micropower operation
2.5V to 5.5V battery operation
Offset Canceling Technology
Superior temperature stability
Extremely Low Switch-Point Drift
Insensitive to Physical Stress
-40°C to 85°C operating temperature
SIP-3L/SC59 package
Lead Free Finish/RoHS Compliant for Lead Free
products (Note 1)
General Description
AH182/AH183 is a three-terminal Hall effect sensor device with
an output driver, mainly designed for battery–operation,
hand-held equipment (such as cellular and cordless phones, and
PDA’s) The total operation power is down to 15uW in the 2.75V
supply.
The south pole of sufficient strength will turn the output on in
SIP-3L but the north pole of sufficient strength will turn the output
on in SC59 package. The output will be turned off under no
magnetic field.
While the magnetic flux density
(B)
is larger than operation point
(Bop),
the output will be turned on (low), the output is held until
B
is lower than the release point
(Brp),
then turned off. The
difference between AH182 and AH183 is that the former
consumes less power than that of the latter in the Hall sensor
operation.
Applications
•
•
•
Cover detector
Speed measurement
Home safety
Pin Descriptions
Name
Vdd
GND
Output
P/I/O
P/I
P
O
Pin #
1
2
3
Description
Power Supply Input
Ground
Output Pin
Ordering Information
AH182/AH183 X - X X X
CMOS Hall-
effect Switch
Wafer Body
Package
Lead
L : Lead Free
(Note 2)
Packing
Blank : Bulk
A : Spread-leg ammo pack for SIP-3L;
Tape & Reel for SOT23-3L
Blank or
P: SIP-3L
A~Z : if necessary W: SC59
to specify
Note:
1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see
EU Directive Annex Notes 5 and 7.
2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
AH182/AH183 Rev. 2
1 of 9
www.diodes.com
MARCH 2007
©
Diodes Incorporated
AH182/AH183
LOW POWER HALL EFFECT SWITCH
Typical Circuit
2.5~5.5V
Vdd
AH182/
AH183
Gnd
Output
R
L
Digital
Output
Absolute Maximum Ratings
(Ta = 25°C)
Characteristics
Supply Voltage
Magnetic Flux Density
Operating Temperature Range
Storage Temperature Range
Package Power Dissipation
Maximum Junction Temp
Output current
P
D
Symbol
V
dd
B
T
a
T
s
SIP-3L
SC59
T
jc
I
o
Values
7
Unlimited
-40 to +85
-65 to +150
550
230
150
10
Unit
V
°C
°C
mW
mW
°C
mA
Recommended Operating Conditions
( Ta = 25°C )
Paramter
Supply Voltage
Symbol
Vdd
Conditions
Operating
Rating
2.5~5.5
Unit
V
AH182/AH183 Rev. 2
3 of 9
www.diodes.com
MARCH 2007
©
Diodes Incorporated
嵌入式系统
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