AH1804-W-7 [DIODES]
Hall Effect Sensor, 1.5mT Min, 6mT Max, 0.20-3.10V, Plastic/epoxy, Rectangular, 3 Pin, Surface Mount, ROHS COMPLIANT, SC-59, 3 PIN;
| 型号： | AH1804-W-7 |
| 厂家： | 
DIODES INCORPORATED |
| 描述： | Hall Effect Sensor, 1.5mT Min, 6mT Max, 0.20-3.10V, Plastic/epoxy, Rectangular, 3 Pin, Surface Mount, ROHS COMPLIANT, SC-59, 3 PIN 传感器 换能器 |
| 文件： | 总9页 (文件大小：199K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AH1804
MICROPOWER OMNIPOLAR HALL EFFECT SENSORSWITCH
Description
Pin Assignments
( Top View )
The AH1804 is a micropower Omnipolar Hall effect switch IC
with a single output driver with internal pull up and pull down
capability. Designed for portable and battery powered
equipment such as cellular phones and portable PCs the
average supply current is only 12µA at 3.3V. To support
battery powered equipment the AH1804 can operate over the
supply range of 2.5V to 3.6V and uses a hibernating clocking
system to minimize the power consumption.
GND
NC
4
3
1
2
Output
VDD
DFN1216-4
The output is activated with either a north or south pole of
sufficient strength. When the magnetic flux density (B) is
larger than operate point (Bop), the output will be turned on
(pulled low) and held until B is lower than release point (Brp).
(Top View)
3.
Output
GND 2.
1 . VDD
The AH1804 is available in SC59 and small low profile
DFN1216-4 packages.
SC59
Features
Applications
•
•
•
•
•
Omnipolar operation (North or South pole)
Low supply voltage 2.5V to 3.6V
Micropower operation
No external pull up resistors required
Chopper stabilized design
•
•
•
Cover switch in clam-shell and slide cellular phones
Cover switch in portable PC’s, Tablets and PDA
Display screen open/close detect in Digital
camcorders
o
o
o
Superior temperature stability
Extremely Low Switch-Point Drift
Insensitive to Physical Stress
•
Contact-less switch in portable battery powered
consumer and industrial products
•
•
•
•
Good RF noise immunity
-40°C to 85°C operating temperature
Small low profile DFN1216-4 and SC59 packages
ESD (HBM) ＞ 5KV
•
“Green” Molding Compound
Typical Application Circuit
VDD
2.5V to 3.6V
Cin
Output
AH1804
GND
Note: Cin is for power stabilization and to strengthen the noise immunity, C = 100nF or higher must be used.
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© Diodes Incorporated
AH1804
Document number: DS35314 Rev. 2 - 2
AH1804
MICROPOWER OMNIPOLAR HALL EFFECT SENSORSWITCH
Pin Descriptions
Pin Name
VDD
P/I/O
Description
P/I
P/I
O
Power Supply Input
GND
Ground
Output
NC
Output Pin
NC
No Connection (Note 1)
Notes:
1. NC is “No Connection” which is not connected internally. This pin can be left open or tied to ground.
Functional Block Diagram
VDD
Sleep/Awake Logic
and Power Switch
Hall
Plate
Latch
Amp
Amp
Output
Driver
Controller
Output
GND
Hall
Plate
Latch
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© Diodes Incorporated
AH1804
Document number: DS35314 Rev. 2 - 2
AH1804
MICROPOWER OMNIPOLAR HALL EFFECT SENSORSWITCH
Absolute Maximum Ratings (TA = 25°C, Note 2)
Symbol
VDD
Characteristics
Supply voltage (Note 3)
Values
5.0
Unit
V
VDD rev
B
Reverse supply voltage
Magnetic flux density
-0.3
V
Unlimited
Ts
Storage Temperature Range
-65 to +150
230
°C
mW
°C
DFN1216-4
SC59
PD
Package Power Dissipation
270
TJ
Maximum Junction Temperature
150
Notes:
2. 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
3. The absolute maximum of 5V is a transient stress rating and is not meant as functional operating conditions. 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)
Symbol
VDD
Characteristics
Supply Voltage
Operating Temperature Range
Conditions
CIN =0.1µF (Note 4)
Operating
Rating
2.5 to 3.6
-40 to +85
Unit
V
TA
°C
Notes: 4. Decoupling capacitor C = 100nF or higher must be used for full 2.5V to 3.6V supply range.
IN
Electrical Characteristics (TA = 25°C, VDD = 3.3V, unless otherwise specified)
Symbol
VOL
Characteristics
Output Low Voltage (on)
Output High Voltage (off)
Conditions
Min
Typ.
Max
0.2
⎯⎯
⎯
Unit
V
IOUT = 1mA
IOUT = -1mA
Chip enable
Chip disable
⎯
0.1
VOH
VDD-0.2 VDD-0.1
V
Idd(en)
⎯
⎯
⎯
4
8
mA
µA
µA
µs
ms
%
Idd(dis) Supply current
Idd(avg)
⎯
Average supply current,
(Note 5)
12
50
50
0.1
⎯
Tawake
Tperiod
D.C.
Awake Time
Period
⎯
100
100
⎯
(Note 5)
⎯
⎯
Duty Cycle
Notes: 5. When power is initially on, the operating V
(2.5V to 3.6V) must be applied to be guaranteed for the output sampling.
DD
The output state is valid after the second operating phase (typical 100ms).
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© Diodes Incorporated
AH1804
Document number: DS35314 Rev. 2 - 2
AH1804
MICROPOWER OMNIPOLAR HALL EFFECT SENSORSWITCH
Magnetic Characteristics (TA = 25°C, VDD = 3.3V, Note 6)
(1mT=10 Gauss)
Symbol
Characteristics
Operation Point
Min
Typ.
40
Max
60
-20
-
Unit
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|)
20
-60
15
-
-40
32
Gauss
Release Point
Hysteresis
-32
8
-15
-
Notes: 6. The magnetic characteristics may vary with operating temperature and after soldering.
Output
Output
( off-state )
Bhy
( off-state )
Bhy
Vcc
Vcc
Turn on
Turn off
Vsat
Turn off
Vsat
Turn on
( on-state )
Bopn
( on-state )
Brpn
0
0
Brps
Bops
( Magnetic flux density B )
( Magnetic flux density B )
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© Diodes Incorporated
AH1804
Document number: DS35314 Rev. 2 - 2
AH1804
MICROPOWER OMNIPOLAR HALL EFFECT SENSORSWITCH
Typical Characteristics
Typical Switch Point Bop and Brp vs. Temperature
Typical Switch Points Bop and Brp vs. Supply Voltage
Average Supply Current vs. Temperature
Average Supply Current vs. Supply Voltage
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© Diodes Incorporated
AH1804
Document number: DS35314 Rev. 2 - 2
AH1804
MICROPOWER OMNIPOLAR HALL EFFECT SENSORSWITCH
Ordering Information
AH1804 - XX - 7 X
Magentic
Packing
Package
Characteristics
7 : Tape & Reel
- Blank : Option 1
(Note 7)
FA : DFN1216-4
W : SC59
7” Tape and Reel
Magentic
Characteristics
(Note 7)
Device
(Note 8)
Package
Code
Packaging
(Note 9)
Quantity
Part Number Suffix
AH1804-FA-7
AH1804-W-7
FA
W
DFN1216-4
SC59
3000/Tape & Reel
3000/Tape & Reel
-7
-7
-Blank
-Blank
Notes:
7. Please refer the Magnetic Characteristics table.
8. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
http://www.diodes.com/products/lead_free.html.
9. 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
Marking Information
(1) DFN1216-4
( Top View )
XX : Identification Code
Y : Year : 0~9
Pin 1 indicator
X X
YWX
W : Week : A~Z : 1~26 week;
a~z : 27~52 week; z represents
52 and 53 week
X : Internal code
Part Number
AH1804-FA-7
Package
DFN1216-4
Identification Code
KJ
(2) SC59 (commonly known as SOT23 in Asia)
( 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
XX Y W X
X : Internal code
Part Number
Package
Identification Code
AH1804-W-7
SC59
WJ
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© Diodes Incorporated
AH1804
Document number: DS35314 Rev. 2 - 2
AH1804
MICROPOWER OMNIPOLAR HALL EFFECT SENSORSWITCH
Package Outline Dimensions (All Dimensions in mm)
(1) Package type: DFN1216-4
Top Mark
0.10
C
Seating Plane
0.65Typ.
Side View
0.08
C
4x
C
1.15/1.25
0.65Typ.
A
B
C
L
Pin#1
C0.2
C
L
Hall sensor
0.25(4x)
1.0
0.75/0.95
Top View
2X-
Land Pattern Recommendation
(Unit:mm)
0.25 B
0.175(4x)
0.15/0.25
(4x)
0.10
C
A B
Bottom View
(2) Package Type: SC59 (commonly known as SOT23 in Asia)
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© Diodes Incorporated
AH1804
Document number: DS35314 Rev. 2 - 2
AH1804
MICROPOWER OMNIPOLAR HALL EFFECT SENSORSWITCH
Taping Orientation (Note 10)
DFN1216-4
Notes: 10. The taping orientation of the other package type can be found on our website at http://www.diodes.com/datasheets/ap02007.pdf.
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© Diodes Incorporated
AH1804
Document number: DS35314 Rev. 2 - 2
AH1804
MICROPOWER OMNIPOLAR HALL EFFECT SENSORSWITCH
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
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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 © 2011, Diodes Incorporated
www.diodes.com
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© Diodes Incorporated
AH1804
Document number: DS35314 Rev. 2 - 2
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