AH1883

AH1883
MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH
Description
Pin Assignments
(Top View)
The AH1883 micropower Omnipolar Hall Effect switch IC is
designed for portable and battery powered equipment such
as cellular phones, cordless phones, camcorders, PDA’s, and
portable PC’s. Based on two high sensitivity Hall Effect plates
and chopper stabilized architecture, the AH1883 provides
reliable solution over the whole operating range.
NC
1
GND
2
NC
3
5
OUTPUT
4
Vdd
SOT553
To support portable and battery powered equipment the
design has been optimized to operate from 1.65V to 3.3V and
consumes 13uW typical with a supply of 1.8V. To minimize
PCB space the AH1883 incudes a push-pull output structure,
therefore does not require an external pull up resistor, and is
packaged in small low profile SOT553 and U-DFN2020-3
packages.
(Top View)
3. GND
Either North or South pole of sufficient strength will turn the
output on. When the magnetic flux density (B) is larger than
operate (Bop) the output is switched on. The output is turned
off when B becomes lower than the release point (Brp). The
output will remain off when there is no magnetic field.
1. Vdd
Features
Applications
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Micropower operation
Operation with North or South Pole
1.65V to 3.3V battery operation
Chopper stabilized
o Superior temperature stability
o Extremely Low Switch-Point Drift
o Insensitive to Physical Stress
Good RF noise immunity
-40°C to 85°C operating temperature
ESD (HBM) > 6kV in SOT553 and U-DFN2020-3
•
•
Small low profile packages: SOT553 and U-DFN2020-3
“Green” Molding Compound
AH1883
Document number: DS31296 Rev. 6 - 2
2. OUTPUT
U-DFN2020-3
Cellular phone
PDA
Portable PCs – Netbook, Notebook, Tablets
Camcorders
Cordless phone
Handheld game consoles
Proximity detection and contact-less switch
applications
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AH1883
MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH
Typical Application Circuit
Vdd
Output
AH1883
GND
Pin Descriptions
Pin Name
P/I/O
Pin #
1
No Connection
P/I
2
Ground
3
No Connection
NC
GND
NC
Description
Vdd
P/I
4
Power Supply Voltage
Output
O
5
Output Pin ( active Low )
Functional Block Diagram
Vdd
Sleep/Awake Logic
and Power Switch
AH1883
Document number: DS31296 Rev. 6 - 2
Offset
Cancellation
Hall
Plate
Offset
Cancellation
Hall
Plate
Amp
Latch
Output
Driver
Controller
Output
GND
Amp
Latch
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AH1883
MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH
Absolute Maximum Ratings (TA = 25°C, Note 1)
Symbol
Vdd
B
TS
Notes:
Characteristics
Values
5
Unlimited
Supply voltage
Magnetic flux density
Storage Temperature Range
Unit
V
-65 to +150
°C
PD
Package Power Dissipation
230
mW
TJ
Maximum Junction Temperature
150
°C
1. Stresses greater than the 'Absolute Maximum Ratings' specified above, may cause permanent damage to the device. These are stress ratings only;
functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability
may be affected by exposure to absolute maximum rating conditions for extended periods of time
Recommended Operating Conditions (TA = 25°C)
Symbol
Vdd
TA
Parameter
Conditions
Rating
Unit
Supply Voltage
Operating
1.65 to 3.3
V
Operating Temperature Range
Operating
-40 to +85
°C
Electrical Characteristics (TA = 25°C, Vdd = 1.8V, unless otherwise specified)
Symbol
Characteristic
Conditions
Min
Typ.
Max
Unit
VOH
Output On Voltage (High side)
IO= -0.5mA
Vdd-0.2
-
-
V
VOL
Output On Voltage (Low side)
IO= 0.5mA
-
-
0.2
V
Chip enable
-
2
4
mA
Supply Current
Chip disable
-
5
8
uA
average supply current
uA
Idd(en)
Idd(dis)
Idd(avg)
-
7
12
Tawake
Awake Time
-
50
100
µs
Tperiod
Period
-
50
100
ms
Duty Cycle
-
0.1
-
%
D.C.
AH1883
Document number: DS31296 Rev. 6 - 2
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AH1883
MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH
Magnetic Characteristics (TA = 25°C, Vdd = 1.8V~3.0V, Note 2 & 3)
Symbol
Characteristic
Bops(south pole to brand side)
Operate Point
Bopn(north pole to brand side)
Brps(south pole to brand side)
Release Point
Brpn(north pole to brand side)
Bhy(|Bopx|-|Brpx|)
Notes:
Hysteresis
Min
(1mT=10 Gauss)
Max
Unit
Typ.
-
37
55
-55
-37
-
6
29
-
-
-29
-6
3
8
-
Gauss
2. Typical data is at TA = 25°C, Vdd = 3V, and for design information only.
3. The magnetic characteristics may vary with supply voltage, operating temperature and after soldering.
Vdd
Turn on
Output
( off-state )
B hy
( on-state )
Turn off
( Output Voltage )
( Output Voltage )
Output
Document number: DS31296 Rev. 6 - 2
Turn off
Vdd
B hy
Turn on
Vsat
Vsat
Bopn B rpn 0
( Magnetic flux density B )
AH1883
( off-state )
( on-state )
0 B rps Bops
( Magnetic flux density B )
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AH1883
MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH
Typical Operating Characteristics
AH1883 Sw itch points vs. Tem perature (Vdd = 1.8V)
AH1883 Sw itch points vs. Vdd (TA =25 ℃)
50
50
40
40
30
20
Bops
10
Brps
0
Bopn
Brpn
-10
Bhy_s
-20
Bopn
0
Brpn
-10
Bhy_s
Bhy_n
-30
-40
-50
-40
Brps
10
-20
Bhy_n
-30
Bops
20
Gauss(G)
Gauss(G)
30
-40
-15
10
35
60
-50
1.65 1.9 2.15 2.4 2.65 2.9 3.15 3.4 3.65 3.9
85
Vdd(V)
Tem perature (℃)
Idd (avg.)
unit: μA
9
Idd (avg.)
unit: μA
10
AH1883 Idd(avg.) vs. Tem perature
AH1883 Idd(avg.) vs. Vdd (TA=25 ºC)
9
8
8
7
7
6
6
5
5
4
4
3
1.65V
3
2
1.8V
2
1
3.3V
1
0
0
-40
-15
10
35
60
85
1.65
Tem perature (℃)
AH1883
Document number: DS31296 Rev. 6 - 2
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1.9
2.15
2.4
2.65 2.9
Vdd(V)
3.15
3.4
3.65
September 2011
© Diodes Incorporated
3.9
AH1883
MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH
Performance Characteristics
For SOT553 and U-DFN2020-3
TA (°C)
25
50
60
70
80
85
90
100
110
120
130
140
150
PD (mW)
230
184
166
147
129
120
110
92
74
55
37
18
0
P D (m W )
P o w e r D is s i p a tio n C u rv e
300
200
100
0
-40 0
25
50
75
85
100
12 5
150
o
TA ( C)
Ordering Information
AH 1883 - XX G - 7
Package
Z : SOT553
FJ : U-DFN2020-3
Device
AH1883-ZG-7
AH1883-FJG-7
Notes:
Package
Code
Z
FJ
Packaging
(Note 4 & 5)
SOT553
U-DFN2020-3
Green
Packing
G : Green
7 : Tape & Reel
7” Tape and Reel
Quantity
Part Number Suffix
3000/Tape & Reel
-7
3000/Tape & Reel
-7
4. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
http://www.diodes.com/products/lead_free.html.
5. 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. 6 - 2
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AH1883
MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH
Marking Information
(1) SOT553
( Top View )
XX Y W X
XX : Identification Code
Y : Year : 0~9
W : Week : A~Z : 1~26 week;
a~z : 27~52 week;
z represents 52 and 53 week
X : Internal code
Part Number
Package
Identification Code
AH1883
SOT553
KP
(2) U-DFN2020-3
( Top View )
XX
YWX
AH1883
Document number: DS31296 Rev. 6 - 2
Pin 1 indicator
XX : Identification Code
Y : Year : 0~9
W : Week : A~Z : 1~26 week;
a~z : 27~52 week;
z represents 52 and 53 week
X : Internal code
Part Number
Package
Identification Code
AH1883
U-DFN2020-3
KP
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AH1883
MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH
Package Outline Dimensions (All Dimensions in mm)
(1) Package Type: SOT553
D
e1
e
E1
E
L
b (5 places)
c
a
SOT553
Dim Min Max Typ
A
0.55 0.60 0.60
c
0.10 0.18 0.15
D
1.50 1.70 1.60
E
1.55 1.70 1.60
E1 1.10 1.25 1.20
L
0.10 0.30 0.20
b
0.15 0.30 0.20
e
0.50 Typ
e1
1.00 Typ
a
8°
7°
6°
All Dimensions in mm
A
(2) Package Type: U-DFN2020-3
A3
A
SEATING PLANE
A1
D
D2
Pin#1 ID
L
E
E2
U-DFN2020-3
Dim Min Max Typ
A
0.57 0.63 0.60
A1
0
0.05 0.02
A3
⎯
⎯ 0.152
b
0.20 0.30 0.25
D
1.95 2.075 2.00
D2 1.10 1.30 1.20
e
0.50
⎯
⎯
E
1.95 2.075 2.00
E2
0.80 1.00 0.90
L
0.35 0.45 0.40
All Dimensions in mm
L
b
e
AH1883
Document number: DS31296 Rev. 6 - 2
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AH1883
MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH
Taping Orientation (Note 6)
For U-DFN2020-3
Notes:
6. The taping orientation of the other package type can be found on our website at http://www.diodes.com/datasheets/ap02007.pdf.
AH1883
Document number: DS31296 Rev. 6 - 2
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AH1883
MICROPOWER, ULTRA-SENSITIVE HALL EFFECT SWITCH
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS
DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other
changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability
arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any
license under its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products described
herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies
whose products are represented on Diodes Incorporated website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized
sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall
indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees
arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names
and markings noted herein may also be covered by one or more United States, international or foreign trademarks.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without
the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided
in the labeling can be reasonably expected to result in significant injury to the user.
B.
A critical component is any component in a life support device or system whose failure to perform can be reasonably expected
to cause the failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or
systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements
concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems,
notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further,
Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes
Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2011, Diodes Incorporated
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AH1883
Document number: DS31296 Rev. 6 - 2
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