AH1815

AH1815
LOW SENSITIVITY MICROPOWER OMNIPOLAR HALL-EFFECT SWITCH
Description
Pin Assignments
The AH1815 is a low-sensitivity, micro-power Omnipolar Hall effect
switch IC, designed for portable and battery powered consumer
equipment for home appliance and industrial applications such as
smart-meter magnetic-tamper detection. Based on two sensitive Hall
effect plates and a chopper-stabilized architecture, the AH1815
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.
(Top View)
GND
The single open drain output can switch on with either a north or
south pole of sufficient strength. When the magnetic flux density (B)
perpendicular to the package is larger than operating point (Bop) the
output is switched on (pulled low). The output is turned off when
B becomes lower than the releasing point (Brp). The output will
remain off when there is no magnetic field.






Omnipolar (North or South pole) Operation
Low 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 +125°C Operating Temperature
ESD (HBM) > 6KV
Small Low Profile SOT553 and Industry Standard SC59 and
SIP-3 Packages
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Notes:
OUTPUT
1
VDD
2
SC59
(Top View)
Features






3
NC
1
GND
2
NC
3
5
OUTPUT
4
VDD
SOT553
(Front View)
3. OUTPUT
2. GND
1. VDD
SIP-3
Applications

Doors, Lids, Covers and Tray Position Detect Switches

Display Switch for Portable PCs and Tablets

On/Off Switch for PDAs and Digital Cameras



Liquid Level Detection for Coffee Machines
Smart Meters
Position, Proximity and Level Detection Contactless Switch in
Battery Powered Consumer, 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.
AH1815
Document number: DS37970 Rev. 2 - 2
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AH1815
Typical Applications Circuit (Note 4)
2.5V to 5.5V
VDD
RL
CIN
AH1815
OUTPUT
GND
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
Packages: SC59 and SIP-3
Pin
Name
Pin
Number
1
VDD
2
3
GND
OUTPUT
Function
Power Supply Input
Ground
Output
Package: SOT553
Pin
Number
Pin
Name
1
2
3
NC
GND
NC
No Connection (Note 5)
Ground
No Connection (Note 5)
4
VDD
Power Supply Input
5
OUTPUT
Note:
Function
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
VDD
Sleep/Awake Logic
and Power Switch
AH1815
Document number: DS37970 Rev. 2 - 2
Offset
Cancellation
Hall
Plate
Offset
Cancellation
Hall
Plate
Amp
Latch
OUTPUT
Output
Driver
Controller
Amp
GND
Latch
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AH1815
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
Reverse Output Pin Voltage
-0.3
V
Output Current (Source and Sink)
2.5
mA
VDD REV
VOUT_REV
IOUTPUT
B
Parameter
Magnetic Flux Density
Unlimited
PD
Package Power Dissipation
TSTG
Storage Temperature Range
230
230
mW
mW
-65 to +150
°C
+150
°C
6
kV
Maximum Junction Temperature
TJ
ESD HBM
Notes:
SC59 and SOT553
SIP-3
Human Body Model ESD capability
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
Characteristic
Supply Voltage
Maximum Output Pin Voltage
Operating Temperature Range
Electrical Characteristics
Symbol
VOUT_ON
IOFF
Rating
Unit
2.5 to 5.5
5.5
-40 to +125
V
V
°C
(@TA = +25°C, VDD = 3V, unless otherwise specified.)
Min
Typ
Max
Output On Voltage
Characteristic
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 +125°C, VDD = 2.5V to 5.5V
During sleep period,
TA = +25°C, VDD = 3V
During sleep period,
TA = -40°C to +125°C, VDD = 2.5V to 5.5V
TA = +25°C, VDD = 3V
TA = -40°C to +125°C, VDD = 2.5V to 5.5V
—
3
12
mA
—
5
10
µA
—
—
28
µA
—
—
8
—
16
40
µA
µA
75
125
µs
IDD (Awake)
Supply Current
IDD (Sleep)
IDD (Sleep)
IDD (Avg.)
Conditions
Operating
Operating
Operating
Average Supply Current
Conditions
Unit
tAWAKE
Awake Time
(Note 8)
—
tPERIOD
Period
(Note 8)
—
75
125
ms
Duty Cycle
—
—
0.1
—
%
D.C.
Note:
8. When power is initially turned on, the operating VDD must be within its correct operating range (2.5V to 5.5V) to guarantee the output sampling.
The output state is valid after the second operating cycle (typical 150ms).
tPERIOD
tAWAKE
IDD(Awake)
tSLEEP
Sample and output
latched
IDD(AVg.)
IDD(Sleep)
0
AH1815
Document number: DS37970 Rev. 2 - 2
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AH1815
Magnetic Characteristics (Notes 9 & 10) (@TA = -40°C to +125°C, VDD = 2.5V to 5.5V, unless otherwise specified.)
Symbol
Characteristic
Operating Points
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:
Releasing Points
—
Conditions
Min
VDD = 2.5V to 5.5V,
TA = -40°C to +125°C,
VDD = 2.5V to 5.5V,
TA = -40°C to +125°C,
Hysteresis (Note 11)
Typ
(1mT=10 Gauss)
Max
Unit
255
395
540
-540
230
-490
—
-395
355
-355
40
-255
490
-230
—
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.
OUTPUT
(off-state) VDD
Turn
on
Bhy
Turn
off
(on-state)
VOUT_ON=VOL
Bopn Brpn
(off-state)
( Output Voltage )
VOH
Turn
off
0
VOH
Bhy
Turn
on
(on-state)
VOL = VSAT
Brps Bops
( Magnetic Flux Density B )
AH1815
Document number: DS37970 Rev. 2 - 2
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AH1815
Typical Operating Characteristics
Magnetic Operating Switch Points – Bop and Brp
500
400
Brps
300
Bops
VDD = 3V
300
Brps
200
200
100
Gauss (G)
Gauss (G)
500
Bops
VDD = 2.5V
400
Bhys
0
-100
-200
100
Bhys
0
-100
-200
-300
-300
Brpn
Bopn
-500
-50
-25
0
25
50
75
100
Brpn
-400
-400
Bopn
-500
-50
125
-25
0
Temperature (°C)
Bops
100
400
TA = 25 C
Brps
100
100
Gauss (G)
Bhys
0
-100
-200
Brpn
-300
-400
Bopn
0
25
50
75
100
Bhys
0
-100
-200
-300
Brpn
-400
Bopn
-500
-500
-25
Brps
200
200
-50
125
Bops
300
300
Gauss (G)
75
Switch Points vs Temperature
500
VDD = 5.5V
400
50
Temperature (°C)
Switch Points vs Temperature
500
25
2.5
125
3
3.5
4
4.5
5
5.5
5
5.5
Supply Voltage (V)
Temperature (°C)
Switch Points vs Supply Voltage
Switch Points vs Temperature
Average Supply Current IDD (mA)
Average Supply Current IDD (μA)
Average Supply Current
25
20
5.5V
15
3.6V
10
3.0V
2.5V
5
0
-50
-25
0
25
50
75
100
125
15
10
5
0
2.5
3
3.5
4
4.5
Average Supply Current vs Supply Voltage
Average Supply Current vs Temperature
Document number: DS37970 Rev. 2 - 2
TA = 25 C
20
Supply Voltage (V)
Temperature ( C)
AH1815
25
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AH1815
Thermal Performance Characteristics
(1)
Package Types: SC59, SOT553 and SIP-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
PD (mW)
Power Dissipation Curve
300
200
100
0
0
25
-40
50
75
100
125
150
TA (C)
Ordering Information
AH1815 - X - X
Packing
Package
W : SC59
Z : SOT553
P : SIP-3
7” Tape and Reel
Ammo Box
Part
Part
Quantity
Quantity
Number Suffix
Number Suffix
Bulk
Device
Package
Code
Packaging
AH1815-P-A
AH1815-P-B
AH1815-W-7
AH1815-Z-7
P
P
W
Z
SIP-3
SIP-3
SC59
SOT553
Notes:
7 : Tape & Reel
A : Ammo Box (Note 12)
B : Bulk (Note 13)
Quantity
Part
Number Suffix
NA
1000
NA
NA
NA
-B
NA
NA
NA
NA
3,000/Tape & Reel
3,000/Tape & Reel
NA
NA
-7
-7
4,000/Box
NA
NA
NA
-A
NA
NA
NA
12. Ammo Box is for SIP-3 Spread Lead.
13. Bulk is for SIP-3 Straight Lead.
AH1815
Document number: DS37970 Rev. 2 - 2
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AH1815
Marking Information
(1)
Package Type: SC59
( Top View )
XX : Identification Code
Y : Year 0 to 9
W : Week : A to Z : 1 to 26 week;
a to z : 27 to 52 week; z represents
52 and 53 week
X : Internal Code
XX Y W X
Part Number
AH1815
(2)
Package
SC59
Identification Code
AG
Package Type: SOT553
( Top View )
XX : Identification Code
Y : Year : 0 to 9
W : Week : A to Z : 1~26 week;
a to z : 27~52 week; z represents
52 and 53 week
X : Internal code
XX Y W X
(3)
Part Number
Package
Identification Code
AH1815
SOT553
AG
Package Type: SIP-3
(Front View)
Part Number
1815
Y WW X
AH1815
Document number: DS37970 Rev. 2 - 2
Y : Year : 0 to 9
WW : Week : 01~52, "52" represents
52 and 53 week
X : Internal Code
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AH1815
Package Outline Dimensions (All dimensions in mm.)
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for the 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°

All Dimensions in mm
Dim
A
B C
G
H
K
J
M
N
L
D
0.10/0.20
CL
0.7/0.9
PART
MARKING
SURFACE
0.595/0.715
Min/Max
Die
Hall Sensor
Pin1
1.3/1.5
Sensor Location
AH1815
Document number: DS37970 Rev. 2 - 2
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AH1815
Package Outline Dimensions (cont.) (All dimensions in mm.)
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for the latest version.
(2)
Package Type: SOT553
D
e1
E1/2
e
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/2
E1
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
0.45/0.67
0.75/0.85
CL
Hall Sensor
Pin1
PART
MARKING
SURFACE
Sensor Location
AH1815
Document number: DS37970 Rev. 2 - 2
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AH1815
Package Outline Dimensions (cont.) (All dimensions in mm.)
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for the latest version.
(3)
Package Type: SIP-3 (Bulk Pack)
SIP-3
(Bulk Pack)
Dim
Min
Max
A
3.9
4.3
a1
5° Typ
a2
5° Typ
a3
45° Typ
a4
3° Typ
B
2.8
3.2
C
1.40
1.60
D
0.33
0.432
E
0.40
0.508
F
0
0.2
G
1.24
1.30
H
2.51
2.57
J
0.35
0.43
L
14.0
15.0
N
0.63
0.84
P
1.55
All Dimensions in mm
L
a1
J
a2
B
P
N
D
C
a3
A
E
a4
G H
F
Min/Max
0.63/0.84
0.27/0.48
1.90/2.10
PART
MARKING
SURFACE
Hall Sensor
1
2
Die
1.05/1.25
PART
MARKING
SURFACE
3
Sensor Location
AH1815
Document number: DS37970 Rev. 2 - 2
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AH1815
Package Outline Dimensions (cont.) (All dimensions in mm.)
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for the latest version.
(4)
Package Type: SIP-3 (Ammo Pack)
EF
SIP-3
(Ammo Pack)
Dim
Min
Max
A
3.9
4.3
a1
45° Typ
a2
3° Typ
B
2.8
3.2
C
1.40
1.60
D
0.35
0.41
E
0.43
0.48
F
0
0.2
G
2.4
2.9
N
0.63
0.84
P
1.55
All Dimensions in mm
N
D
C
A
G
a1
a2
B
P
Min/Max
0.63/0.84
0.27/0.48
1.90/2.10
PART
MARKING
SURFACE
Hall Sensor
1
2
Die
1.05/1.25
PART
MARKING
SURFACE
3
Sensor Location
AH1815
Document number: DS37970 Rev. 2 - 2
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AH1815
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
C2
0.5
X
AH1815
Document number: DS37970 Rev. 2 - 2
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AH1815
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
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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.
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:
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 © 2015, Diodes Incorporated
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AH1815
Document number: DS37970 Rev. 2 - 2
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