AH1883
MICROPOWER, ULTRA-SENSITIVE HALL EFFECT
SWITCH
Description
AH1883 is with two Hall effect plates and a CMOS output
driver, mainly designed for battery–powered, hand-held
equipment (such as Cellular and Cordless Phone, PDA).
The total operation power is down to 15uW in the 1.8V
supply.
Either north or south pole of sufficient strength will turn the
output on. The output will be turned off under no magnetic
field.
While the magnetic flux density
(B)
is larger than operate
point
(Bop),
the output will be turned on (low), the output is
held until
B
is lower than release point
(Brp),
then turned
off.
Pin Assignments
( Top View )
NC
GND
NC
1
2
3
SOT553
5
Output
4
Vdd
Features
•
•
•
•
Micropower operation
Operation with North or South Pole
1.65V to 3.3V battery operation
Chopper stabilized
• Superior temperature stability
• Extremely Low Switch-Point Drift
• Insensitive to Physical Stress
Good RF noise immunity
-40°C to 85°C operating temperature
ESD
＞
4KV in human body mode
Package: SOT553
“Green” Molding Compound
Applications
•
•
•
Cellular phone
PDA
Cordless phone
•
•
•
•
•
Typical Application Circuit
Vdd
AH1883
Output
GND
AH1883
Document number: DS31296 Rev. 5 - 2
1 of 7
www.diodes.com
September 2010
© Diodes Incorporated
AH1883
MICROPOWER, ULTRA-SENSITIVE HALL EFFECT
SWITCH
Pin Descriptions
Pin Name
NC
GND
NC
Vdd
Output
P/I/O
P/I
P/I
O
Pin #
1
2
3
4
5
Description
No Connection
Ground
No Connection
Power Supply Voltage
Output Pin ( active Low )
Functional Block Diagram
Vdd
Hall
Plate
Power
switch
Offset
Cancelling
Amp
Latch
Logical
Hall
Plate
Offset
Cancelling
Output
Amp
Latch
GND
Absolute Maximum Ratings
(T
A
= 25°C)
Symbol
Vdd
B
T
S
P
D
T
J
Supply voltage
Magnetic flux density
Storage Temperature Range
Package Power Dissipation
Maximum Junction Temperature
Characteristics
Values
5
Unlimited
-65 to +150
230
150
Unit
V
°C
mW
°C
Recommended Operating Conditions
(T
A
= 25°C)
Symbol
Vdd
T
A
Parameter
Supply Voltage
Operating Temperature Range
Conditions
Operating
Operating
Rating
1.65 to 3.3
-40 to +85
Unit
V
°C
AH1883
Document number: DS31296 Rev. 5 - 2
2 of 7
www.diodes.com
September 2010
© Diodes Incorporated
AH1883
MICROPOWER, ULTRA-SENSITIVE HALL EFFECT
SWITCH
Electrical Characteristics
(T
A
= 25°C, Vdd = 1.8V, unless otherwise specified)
Symbol
V
OH
V
OL
Idd(en)
Idd(dis)
Idd(avg)
Tawake
Tperiod
D.C.
Awake Time
Period
Duty Cycle
Supply Current
Characteristic
Output On Voltage (High side)
Output On Voltage (Low side)
Conditions
I
O
= -0.5mA
I
O
= 0.5mA
Chip enable
Chip disable
average supply current
Min
Vdd-0.2
-
-
-
-
-
-
-
Typ.
-
-
2
5
7
50
50
0.1
Max
-
0.2
4
8
12
100
100
-
Unit
V
V
mA
uA
uA
µs
ms
%
Magnetic Characteristics
(T
A
= 25°C, Vdd = 1.8V~3.0V, Note 1& 2)
(1mT=10 Gauss)
Symbol
Bops(south pole to brand side)
Bopn(north pole to brand side)
Brps(south pole to brand side)
Brpn(north pole to brand side)
Bhy(|Bopx|-|Brpx|)
Notes:
Characteristic
Operate Point
Release Point
Hysteresis
Min
-
-55
6
-
3
Typ.
37
-37
29
-29
8
Max
55
-
-
-6
-
Unit
Gauss
1. Typical data is at Ta = 25°C, Vdd = 3V, and for design information only.
2. The magnetic characteristics may vary with supply voltage, operating temperature and after soldering.
Output
( Output Voltage )
( Output Voltage )
Output
V
dd
( off-state )
Turn off
( off-state )
Turn off
V
dd
Turn on
Turn on
B
hy
B
hy
( on-state )
V
sat
V
sat
( on-state )
B
opn
B
rpn
0
( Magnetic flux density B )
0 B
rps
B
ops
( Magnetic flux density B )
AH1883
Document number: DS31296 Rev. 5 - 2
3 of 7
www.diodes.com
September 2010
© Diodes Incorporated
AH1883
MICROPOWER, ULTRA-SENSITIVE HALL EFFECT
SWITCH
Typical Operating Characteristics
AH1883 Sw itch points vs. Tem perature (Vdd = 1.8V)
50
40
30
20
Gauss(G)
10
0
-10
-20
-30
-40
-50
-40
-15
10
35
60
85
Bops
AH1883 Sw itch points vs. Vdd (T
A
=25
℃
)
50
40
30
20
Gauss(G)
10
0
-10
-20
-30
-40
-50
1.65 1.9 2.15 2.4 2.65 2.9 3.15 3.4 3.65 3.9
Vdd(V)
Bops
Brps
Bopn
Brpn
Bhy_s
Bhy_n
Brps
Bopn
Brpn
Bhy_s
Bhy_n
Tem perature (
℃
)
Idd (avg.)
unit:
μA
9
8
7
6
5
4
3
2
1
0
-40
AH1883 Idd(avg.) vs. Tem perature
Idd (avg.)
unit:
μA
10
9
8
7
6
5
4
AH1883 Idd(avg.) vs. Vdd (T
A
=25 ºC)
1.65V
1.8V
3.3V
-15
10
35
60
85
3
2
1
0
1.65
1.9
2.15
2.4
2.65
2.9
3.15
3.4
3.65
3.9
Tem perature (
℃
)
Vdd(V)
AH1883
Document number: DS31296 Rev. 5 - 2
4 of 7
www.diodes.com
September 2010
© Diodes Incorporated
AH1883
MICROPOWER, ULTRA-SENSITIVE HALL EFFECT
SWITCH
Performance Characteristics
T
A
(°C)
P
D
(mW)
25
230
P
D
(m W )
300
50
184
60
166
70
147
80
129
85
120
90
110
100
92
110
74
120
55
130
37
140
18
150
0
P o w e r D is s i p a tio n C u rv e
200
100
0
0
-4 0
25
50
75
85
100
12 5
150
o
T
A
( C)
Ordering Information
AH 1883 - Z G - 7
Package
Z : SOT553
Device
AH1883-ZG-7
Notes:
Green
Packing
7 : Tape & Reel
G : Green
Package
Code
Z
Packaging
(Note 3 & 4)
SOT553
7” Tape and Reel
Quantity
Part Number Suffix
3000/Tape & Reel
-7
3. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
http://www.diodes.com/products/lead_free.html.
4. 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.
AH1883
Document number: DS31296 Rev. 5 - 2
5 of 7
www.diodes.com
September 2010
© Diodes Incorporated
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