Diodes AH1808 High sensitivity micropower omnipolar hall-effect switch Datasheet

AH1808
HIGH SENSITIVITY MICROPOWER OMNIPOLAR HALL-EFFECT SWITCH
Description
Pin Assignments
The AH1808 is a high sensitivity, micro power Omnipolar Hall Effect
switch IC designed for portable and battery powered consumer
TOP View)
equipment such as cellular phones, PDA’s and portable PC’s to home
appliance and industrial applications. Based on two sensitive Hall
Effect plates and a chopper stabilized architecture the AH1808
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 24µW with a supply of 3V.
SC59
The single open drain output can switched on with either a North or
South pole of sufficient strength. When the magnetic flux density (B)
perpendicular to the package is larger than operate point (Bop) the
(TOP View)
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.
Features
SOT553
•
Omnipolar (North or South pole) Operation
•
High Sensitivity
•
Single Open Drain Output
•
Micropower Operation
•
2.5V to 5.5V Operating Range
•
Cover Switch in Clam-Shell or Slide Type Cellular Phones
•
Chopper Stabilized Design Provides
•
Display Switch for Portable PCs
ƒ
Superior Temperature Stability
•
On/Off Switch for PDAs and Digital Cameras
ƒ
Minimal Switch Point Drift
ƒ
Enhanced Immunity to Stress
•
Contact-Less Switch in Consumer Products
•
Smart E-meters
•
Good RF Noise Immunity
•
-40°C to +85°C Operating Temperature
•
ESD (HBM) > 6KV
Applications
•
•
Small Low Profile SOT553 and Industry Standard SC59 Packages
•
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
•
Halogen and Antimony Free. “Green” Device (Note 3)
Notes:
Position, Proximity and Level Detection Contact-Less Switch in
Home Appliances and Industrial Applications
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
AH1808
Document number: DS35655 Rev. 4 - 2
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AH1808
Typical Applications Circuit
Note:
4. CIN is for power stabilization and to strengthen the noise immunity, the recommended capacitance is 10nF to 100nF.
RL is the pull-up resistor, the recommended resistance is 10kΩ to 100kΩ.
Pin Descriptions
Package: SC59
1
Pin
Name
VDD
2
3
GND
OUTPUT
Pin
Number
Function
Power Supply Input
Ground
Output
Package: SOT553
1
2
3
Pin
Name
NC
GND
NC
4
5
VDD
OUTPUT
Pin
Number
Note:
Function
No Connection (Note 5)
Ground
No Connection (Note 5)
Power Supply Input
Output
5. NC is “No Connection” pin and is not connected internally. This pin can be left open or tied to ground.
Functional Block Diagram
AH1808
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AH1808
Absolute Maximum Ratings (Note 6) (@TA = +25°C, unless otherwise specified.)
Symbol
Values
Unit
VDD
Supply Voltage (Note 7)
7
V
VOUT
Output Pin Voltage (Note 7)
7
V
Reverse Supply Voltage
-0.3
V
VOUT_REV
Reverse Output Pin Voltage
-0.3
V
IOUTPUT
Output current (source and sink)
2.5
mA
VDD REV
Parameter
B
Magnetic Flux Density
PD
Package Power Dissipation
Ts
Storage Temperature Range
TJ
Maximum Junction Temperature
ESD HBM
Notes:
Unlimited
SC59 and SOT553
230
Human Body Model ESD capability
mW
-65 to +150
°C
+150
°C
6
kV
6. 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.
7. The absolute maximum VDD of 7V is a transient stress rating and is not meant as a functional operating condition. It is not recommended to
operate the device at the absolute maximum rated conditions for any period of time.
Recommended Operating Conditions (@TA = +25°C, unless otherwise specified.)
Symbol
VDD
VOUT_MAX
TA
Rating
Unit
Supply Voltage
Characteristic
Operating
Conditions
2.5 to 5.5
V
Maximum output pin voltage
Operating
5.5
V
Operating Temperature Range
Operating
-40 to +85
°C
Electrical Characteristics (@TA = +25°C, VDD = 3V, unless otherwise specified.)
Symbol
Min
Typ
Max
Output On Voltage
IOUT = 1mA
—
0.1
0.3
V
Output Leakage Current
VOUT = 5.5V, Output off
—
< 0.1
1
µA
During ‘awake’ period,
TA = +25°C, VDD = 3V
—
3
6
mA
During ‘awake’ period,
TA = -40°C to +85°C, VDD = 2.5V to 5.5V
—
3
12
mA
IDD(sleep)
During ‘sleep’ period,
TA = +25°C, VDD = 3V
—
5
10
µA
IDD(sleep)
During ‘sleep’ period,
TA = -40°C to +85°C, VDD = 2.5V to 5.5V
—
—
28
µA
VOUT_ON
Ioff
Characteristic
IDD(awake)
Supply Current
IDD(avg)
Average Supply Current
Tawake
Tperiod
D.C.
Awake Time
Period
Duty Cycle
Note:
Conditions
Unit
TA = +25°C, VDD = 3V
—
8
16
µA
TA = -40°C to +85°C, VDD = 2.5V to 5.5V
—
—
40
µA
(Note 8)
(Note 8)
—
—
—
—
75
75
0.1
125
125
—
µs
ms
%
8. When power is initially turned on, the operating 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).
AH1808
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AH1808
Magnetic Characteristics (Note 9 & 10) (@TA = -40°C to +85°C , VDD = 2.5V to 5.5V
Symbol
Characteristic
Bops (south pole to part marking side)
Bopn (north pole to part marking side)
Brps (south pole to part marking side)
Brpn (north pole to part marking side)
Bhy (|Bopx|-|Brpx|)
Notes:
unless otherwise specified.)
Min
Operation Point
Release Point
Hysteresis (Note 11)
(1mT=10 Gauss)
Max
Unit
Typ
20
40
60
-60
10
-50
5
-40
30
-30
10
-20
50
-10
—
Gauss
9. Typical data is at TA = +25°C, VDD = 3V, and for design information only.
10. Maximum and minimum parameters values over the operating temperature range are not tested in production, they are guaranteed by design,
characterization and process control. The magnetic characteristics may vary with supply voltage, operating temperature and after soldering.
11. Maximum and minimum hysteresis is guaranteed by design and characterization.
Thermal Performance Characteristics
(1)
Package type: SC59 and SOT553
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
PD (mW)
Power Dissipation Curve
300
200
100
0
0
-40
AH1808
Document number: DS35655 Rev. 4 - 2
25
50
75
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85
100
125
150
TA (oC)
February 2014
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AH1808
Ordering Information
Part Number
Package
Code
Packaging
AH1808-W-7
AH1808-Z-7
W
Z
SC59
SOT553
Quantity
3000/Tape & Reel
3000/Tape & Reel
7” Tape and Reel
Part Number Suffix
-7
-7
Marking Information
(1)
Package Type: SC59
Part Number
AH1808
(2)
Package
SC59
Identification Code
J8
Package type: SOT553
Part Number
AH1808
AH1808
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Package
SOT553
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Identification Code
J8
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AH1808
Package Outline Dimensions (All dimensions in mm.)
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version.
(1)
Package Type: SC59
A
SC59
Min
Max
Typ
0.35
0.50
0.38
B
1.50
1.70
1.60
C
2.70
3.00
2.80
D
0.95
G
1.90
H
2.90
3.10
3.00
J
0.013 0.10
0.05
K
1.00
1.30
1.10
L
0.35
0.55
0.40
M
0.10
0.20
0.15
N
0.70
0.80
0.75
0°
8°
α
All Dimensions in mm
B C
Dim
A
G
H
K
J
M
N
D
L
Sensor Location
AH1808
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AH1808
Package Outline Dimensions (All dimensions in mm.)
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version.
(1)
Package Type: SOT553
D
e1
E1/2
e
E/2
E1
SOT553
Dim
Min
Max
Typ
A
0.55
0.62
0.60
b
0.15
0.30
0.20
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
e
0.50 BSC
e1
1.00 BSC
F
0.00
0.10
––
L
0.10
0.30
0.20
a
6°
8°
7°
All Dimensions in mm
E
L (5x)
c
b (5x)
F
R0.1 MAX.
TYP.
a
7°
A
TYP.
Min/Max
0.10/0.18
CL
0.22/0.38
Die
CL
0.45/0.67
0.75/0.85
Hall Sensor
Pin# 1
PART
MARKING
SURFACE
Sensor Location
AH1808
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AH1808
Suggested Pad Layout
Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for the latest version.
(1)
Package Type: SC59
Y
Z
C
X
(2)
Dimensions Value (in mm)
Z
3.4
X
0.8
Y
1.0
C
2.4
E
1.35
E
Package Type: SOT553
C2
Z
C2
C1
G
Y
Dimensions Value (in mm)
Z
2.2
G
1.2
X
0.375
Y
0.5
1.7
C1
0.5
C2
X
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AH1808
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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).
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This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
final and determinative format released by Diodes Incorporated.
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:
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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.
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failure of the life support device or to affect its safety or effectiveness.
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representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2014, Diodes Incorporated
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