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AH1812 데이터시트 PDF




Diodes에서 제조한 전자 부품 AH1812은 전자 산업 및 응용 분야에서
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부품번호 AH1812 기능
기능 HIGH SENSIVITY MICROPOWER OMNIPOLAR HALL-EFFECT SWITCH
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AH1812 데이터시트, 핀배열, 회로
AH1812
HIGH SENSIVITY MICROPOWER OMNIPOLAR HALL-EFFECT SWITCH
Description
The AH1812 is a high sensitivity micropower Omnipolar Hall effect
switch IC with an open drain output. Designed for portable and battery
powered equipment such as cellular phones and portable PCs, the
average supply current is only 4.3µA at 1.85V. To support potable
equipment the AH1812 can operate over the supply range of 1.6V to
3.6V and uses a hibernating clocking system to minimize the power
consumption. To minimize PCB space the AH1812 is available in
small low profile X1-DFN1216-4 package
The open drain output is activated with either a North or South pole of
sufficient magnetic field strength. When the magnetic flux density (B)
perpendicular to the package is larger than operate point (Bop), the
output will be turned 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.
Pin Assignments
(Top View)
X1-DFN1216-4
Features
Omnipolar Operation (North or South Pole)
Supply Voltage of 1.6V to 3.6V
High Sensitivity
Micropower Operation
Chopper Stabilized Design Provides:
Superior Temperature Stability
Extremely Low Switch-Point Drift
Enhanced Immunity to Stress
Open Drain Output for System Flexibility
Good RF Noise Immunity
-40°C to +85°C Operating Temperature
Small and Low Profile X1-DFN1216-4 Package
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Applications
Cover or Display Switch in Portable PCs
Open and Close Detect for Cellular Phones
Holster Detect for Cellular Phones and Tablet PCs
Digital Still and Video Cameras
Contact-Less Switches
Notes:
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.
Typical Applications Circuit (Note 4)
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 10kto 100k.
AH1812
Document number: DS36171 Rev. 2 - 2
1 of 8
www.diodes.com
August 2013
© Diodes Incorporated
Free Datasheet http://www.datasheet4u.com/




AH1812 pdf, 반도체, 판매, 대치품
AH1812
Magnetic Characteristics (Note 9) (@TA = +25°C, VDD = 3V, unless otherwise specified.)
Symbol
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|)
Characteristic
Operation Point
Release Point
Hysteresis
Note:
9. The magnetic characteristics may vary with supply voltage, operating temperature and after soldering.
Min
16
-40
11
-35
-
(1mT=10 Gauss)
Typ Max
Unit
30 40
-30 -16
20 35 Gauss
-20 -11
10 -
AH1812
Document number: DS36171 Rev. 2 - 2
4 of 8
www.diodes.com
August 2013
© Diodes Incorporated

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AH1812 전자부품, 판매, 대치품
AH1812
Package Outline Dimensions (All dimensions in mm.)
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for latest version.
(1) Package Type: X1-DFN1216-4
 A
A1 A3
S e a tin g P l a n e
D
e
C'0.2 x 4 5 °
E E2
L
D2
Z b Pin # 1 I D
X1-DFN1216-4
Dim Min Max Typ
A 0.47 0.53 0.50
A1 0.00 0.05 0.02
A3 -- -- 0.13
b 0.15 0.25 0.20
D 1.15 1.25 1.20
D2 0.75 0.95 0.85
E 1.55 1.65 1.60
E2 0.55 0.75 0.65
e - - 0.65
L 0.20 0.30 0.25
Z - - 0.175
All Dimensions in mm
Bottom View
Sensor Location
Suggested Pad Layout (All dimensions in mm.)
Please see AP02001 at http://www.diodes.com/datasheets/ap02001.pdf for latest version.
X1
C
Y2 Y1
Y
X1-DFN1216-4
Dimensions Value
C 0.65
X 0.25
X1 0.90
Y 0.50
Y1 0.70
Y2 2.00
All Dimensions in mm
X
AH1812
Document number: DS36171 Rev. 2 - 2
7 of 8
www.diodes.com
August 2013
© Diodes Incorporated

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