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PDF ( 数据手册 , 数据表 ) AH1808

零件编号 AH1808
描述 HIGH SENSITIVITY MICROPOWER OMNIPOLAR HALL-EFFECT SWITCH
制造商 Diodes
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AH1808 数据手册, 描述, 功能
AH1808
HIGH SENSITIVITY MICROPOWER OMNIPOLAR HALL-EFFECT SWITCH
Description
The AH1808 is a high-sensitivity, micropower Omnipolar Hall Effect
switch IC. It is designed for portable and battery powered consumer
equipment, home appliances and industrial equipment such as smart-
meter magnetic-tamper detection. 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 is optimized to operate
over the supply range of 2.5V to 5.5V and consumes only 24µW with
a supply of 3V.
The single open drain output can be 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 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.
Pin Assignments
TOP View)
SC59
(TOP View)
Features
Omnipolar (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 (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)
SOT553
SIP-3
Applications
Doors, Lids, Covers and Trays 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 Contact-Less Switch in
Battery Powered Consumer, Home Appliances and Industrial
Applications
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.
AH1808
Document number: DS35655 Rev. 6 - 2
1 of 12
www.diodes.com
February 2015
© Diodes Incorporated







AH1808 pdf, 数据表
Package Outline Dimensions (Continued) (All dimensions in mm.)
Please see AP02002 at http://www.diodes.com/datasheets/ap02002.pdf for the latest version.
(2) Package Type: SOT553
AH1808
D
e1
E1/2
E1
e
R0.1 MAX.
TYP.
F
E/2
E
b (5x)
a
L (5x)
c
A
TYP.
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
Sensor Location
AH1808
Document number: DS35655 Rev. 6 - 2
8 of 12
www.diodes.com
February 2015
© Diodes Incorporated














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