Diodes AH1802-WG-7 Micropower, ultra-sensitive omnipolar Datasheet

AH1802
MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR
HALL-EFFECT SENSOR SWITCH
Description
Pin Assignments
The AH1802 is a ultra-sensitivity, micropower Omnipolar Hall
Effect switch IC designed for portable and battery powered
equipment such as cellular phones, PDA’s and portable
PC’s.
Based on two sensitive Hall Effect plates and
a chopper stabilized architecture the AH1802 provides
a reliable solution over the whole operating range. To support
portable and battery powered equipment the design has been
optimized to operate over the supply range of 2.5V to 5.5V
and consumes only 24uW with a supply of 3V.
(Top View)
(Top View)
2. Output
6. NC
5. GND
1. Vdd
2. NC
4. NC
GND 3.
1. Vdd
SC59
3. Output
DFN2020-6
The single open drain output can switched on with either a
north or south pole of sufficient strength. When the magnetic
flux density (B) is larger than operate point (Bop) the output is
switched on (pulled low). 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.
(Top View)
(Top View)
3. GND
3. GND
1. Vdd
3. Output
DFN2020-3
1. Vdd
2. Output
DFN2015H4-3
Features
Applications
•
•
•
•
•
•
•
•
•
•
•
•
•
Omni-polar (north or south pole) operation
High sensitivity
Single open drain output
Micropower operation
2.5V to 5.5V operating range
Chopper stabilized design provides
•
Superior temperature stability
•
Minimal switch point drift
•
Enhanced immunity to stress
Good RF noise immunity
-40°C to 85°C operating temperature
ESD>5kV for DFN2020-6, DFN2020-3 and
Cover switch in clam-shell or slide type cellular phones
Display switch for portable PCs
On/Off switch for PDAs and digital cameras
Contact-less switch in consumer products
DFN2015H4-3
ESD>6kV for SC59
•
•
Low profile SC59, DFN2020-6, DFN2020-3 and
DFN2015H4-3 packages
“Green” Molding Compound (Note 1)
Notes:
1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
http://www.diodes.com/products/lead_free.html.
AH1802
Document number: 31170 Rev. 8 - 2
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AH1802
MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR
HALL-EFFECT SENSOR SWITCH
Typical Application Circuit
2.5~5.5V
RL
C
Output
AH1802
GND
Pin Descriptions
Pin Name
Vdd
GND
Output
NC
Notes:
P/I/O
P/I
P/I
O
Description
Power Supply Input
Ground
Output Pin
No connection (Note 2)
2. NC is “No Connection”- recommendation is to connect the NC pin to ground externally.
Functional Block Diagram
1
Vdd
Power
switch
Offset
Cancelling
Hall Plate
Output
Latch
Amp
3
Logical
GND
2
AH1802
Document number: 31170 Rev. 8 - 2
Offset
Cancelling
Hall Plate
Latch
Amp
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AH1802
MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR
HALL-EFFECT SENSOR SWITCH
Absolute Maximum Ratings (TA = 25°C)
Symbol
Vdd
B
Ts
PD
TJ
Characteristics
Supply Voltage
Magnetic Flux Density
Storage Temperature Range
Package Power Dissipation
Maximum Junction Temperature
Values
7
Unlimited
-65 to +150
230
150
Unit
V
°C
mW
°C
Recommended Operating Conditions (TA = 25°C)
Symbol
Vdd
TA
Parameter
Supply Voltage
Operating Temperature Range
Conditions
Operating
Operating
Rating
2.5 to 5.5
-40 to +85
Unit
V
°C
Electrical Characteristics (TA = 25°C, Vdd = 3V; unless otherwise specified)
Symbol
Vout
Ioff
Characteristic
Output On Voltage
Output Leakage Current
Idd(en)
Idd(dis)
Supply Current
Idd(avg)
FC
Tawake
Tperiod
D.C.
Notes:
Chopping Frequency
Awake Time
Period
Duty Cycle
Conditions
Iout=1mA
Vout=5.5V, B < Brp
Chip enable, TA= 25°C, Vdd = 3V
Chip enable, TA= -40~85°C,
Vdd = 2.5~5.5V
Chip disable, TA= 25°C, Vdd = 3V
Chip disable, TA= -40~85°C,
Vdd = 2.5~5.5V
Average supply current ,
TA= 25°C, Vdd = 3V
Average supply current ,
TA= -40~85°C, Vdd = 2.5~5.5V
For design information only
(Note 3)
(Note 3)
Min
Typ.
Max
Unit
-
0.1
<0.1
3
0.3
1
6
V
µA
mA
-
3
10
mA
-
5
10
µA
-
5
18
µA
-
8
16
µA
-
8
23
µA
-
300
75
75
0.1
150
150
-
KHz
µs
ms
%
3. When power is initially turned on, Vdd must be within its correct operating range (2.5V to 5.5V) to guaranteed the output sampling.
The output state is valid after the second operating cycle (typical 150ms).
Tperiod
Tawake
Idd(en)
Sample and output
latched
Idd (dis)
0
AH1802
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AH1802
MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR
HALL-EFFECT SENSOR SWITCH
Magnetic Characteristics (TA = 25°C, Vdd = 3V, Note 4 & 5)
(1mT=10 Gauss)
Notes:
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)
Characteristic
Bhy( Bopx − Brpx )
Hysteresis
Operate Point
Release Point
Min
20
-40
10
-
Typ.
28
-28
20
-20
Max
40
-20
-10
5
8
-
Unit
Gauss
4. Typical data is at TA = 25°C, Vdd = 3V, and for design information only.
5. The magnetic characteristics may vary with supply voltage, operating temperature and after soldering.
Vcc ( off-state )
Turn on
Bhy
Turn off
Output
( Output Voltage )
( Output Voltage )
Output
( on-state )
Bopn Brpn 0
( Magnetic flux density B )
Document number: 31170 Rev. 8 - 2
Turn off
Vcc
Bhy
Turn on
Vsat
Vsat
AH1802
( off-state )
( on-state )
0 Brps Bops
( Magnetic flux density B )
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AH1802
MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR
HALL-EFFECT SENSOR SWITCH
Performance Characteristics
TA (°C)
PD (mW)
25
230
50
184
60
166
70
147
P D (m W )
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
300
200
100
0
-40 0
25
50
75
85
100
12 5
150
o
TA ( C)
Ordering Information
AH 1802 - XXX G – 7 - 01
Package
Green
Packing
Taping orientation
W : SC59
SN : DFN2020-6
FJ : DFN2020-3
FY4 : DFN2015H4-3
G : Green
7 : Tape & Reel
01: 180o rotation
Note 8
Device
Package
Code
Packaging
(Note 6 & 7)
AH1802-WG-7
AH1802-SNG-7
AH1802-FJG-7
AH1802-FJG-7-01 (Note 8)
AH1802-FY4G-7
W
SN
FJ
FJ
FY4
SC59
DFN2020-6
DFN2020-3
DFN2020-3
DFN2015H4-3
Notes:
7” Tape and Reel
Quantity
Part Number Suffix
3000/Tape & Reel
-7
3000/Tape & Reel
-7
3000/Tape & Reel
-7
3000/Tape & Reel
-7
3000/Tape & Reel
-7
6. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
http://www.diodes.com/products/lead_free.html.
7. 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.
8. AH1802-FJG-7-01 DFN2020-3 package taping orientation is rotated by 180o compared to standard part AH1802-FJG-7.
See package orientation diagrams on page 10.
AH1802
Document number: 31170 Rev. 8 - 2
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AH1802
MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR
HALL-EFFECT SENSOR SWITCH
Marking Information
(1) SC59
( Top View )
3
XX Y W X
1
2
Part Number
AH1802
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 : A~Z : Green
Package
SC59
Identification Code
KC
(2) DFN2020-6
( Top View )
XX
YWX
Part Number
AH1802
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 : A~Z : Green
Package
DFN2020-6
Identification Code
KC
(3) DFN2020-3
( Top View )
XX
YWX
Part Number
AH1802
AH1802
Document number: 31170 Rev. 8 - 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 : A~Z : Green
Package
DFN2020-3
Identification Code
KE
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AH1802
MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR
HALL-EFFECT SENSOR SWITCH
Marking Information (Continued)
(4) DFN2015H4-3
( Top View )
XX
YWX
Part Number
AH1802
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 : A~Z : Green
Package
DFN2015H4-3
Identification Code
KF
Package Outline Dimensions (All Dimensions in mm)
(1) Package Type: SC59
AH1802
Document number: 31170 Rev. 8 - 2
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AH1802
MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR
HALL-EFFECT SENSOR SWITCH
Package Outline Dimensions (Continued)
0.43mon.
Marking
0.15max.
0.05 C
1.95/2.075
1.45/1.65
0.15
0.30/0.40
0.76/0.96
0.65
0.37
Sensor location
Pin#1 ID
1.95/2.075
Top View
A
CL
CL
CL
1
R0.
2x-
C
0.45
B
Seating plane
0.15 C
0.65nom.
0.2/0.3
CL
0.05 M C A B
0.37
0.9
0.15 C
2x
0/0.05
0.08 C
(Active area depth)
0.15
0.57/0.63
(2) Package Type: DFN2020-6
1.67
Bottom View
Land Pattern Recommendation
(Unit:mm)
0.10 C
1.25
Top Marking
0/0.05
0.47/0.53
(3) Package type: DFN2020-3
CL
Pin1
CL
0.65
.2
0.3
Pin1
CL
0.5
1
0.138
0.775/0.975
1.85/2.15
R0
Sensor location
0.35/0.45
0.5Typ
B
2.4
C
CL
0.925
0.138
Seating plane
0.08 C
2x-
0.325
0.3
0.25 B
0.10 M C A B
0.2/0.3
1.1/1.35
0.325
A
Bottom View
2x
0.25 A
1.85/2.15
Land Pattern Recommendation
(Unit:mm)
0.18±0.07
Top View
AH1802
Document number: 31170 Rev. 8 - 2
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AH1802
MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR
HALL-EFFECT SENSOR SWITCH
Package Outline Dimensions (Continued)
0.13Typ.
(4) Package type: DFN2015H4-3
0.40Max.
Top Mark
3x-0.35
1.45/1.575
CL
A
1.0Typ.
0.25/0.35
Seating Plane
CL
2x-0.50
R0
(Pin #1)
Hall Sensor
CL
1.0/1.2
.1 7
5
(Pin #1)
0.50
0.45
C
Side View
0.125Typ.
B
1.95/2.075
1.30Typ.
0.15
0.08 C
0/0.05
2x0.25 A
3x-
0.7/0.9
0.10 C
0.50
Land Pattern Recommendation
(Unit:mm)
Top View
2x-
0.25 B
CL
0.20/0.30
0.10
C A B
Bottom View
AH1802
Document number: 31170 Rev. 8 - 2
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AH1802
MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR
HALL-EFFECT SENSOR SWITCH
Taping Orientation
(1) DFN2020-6 and DFN2020-3 with standard taping orientation
(2) DFN2020-3 with 180o rotation from standard taping orientation
(3) DFN2015H4-3
Notes:
9. The taping orientation of the other package type can be found on our website at http://www.diodes.com/datasheets/ap02007.pdf.
AH1802
Document number: 31170 Rev. 8 - 2
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AH1802
MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR
HALL-EFFECT SENSOR 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
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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.
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Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall
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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
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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 © 2010, Diodes Incorporated
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