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AH1822 Schematic ( PDF Datasheet ) - Diodes

Teilenummer AH1822
Beschreibung MICROPOWER OMNIPOLAR HALL-EFFECT SENSOR SWITCH
Hersteller Diodes
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Gesamt 9 Seiten
AH1822 Datasheet, Funktion
Features
AH1822
MICROPOWER OMNIPOLAR HALL-EFFECT SENSOR
SWITCH
General Description
Micropower operation
Operation with magnetic field of either north or south
pole (omnipolar)
2.5V to 5.5V battery operation
Chopper stabilized
Superior temperature stability
Extremely Low Switch-Point Drift
Insensitive to Physical Stress
Good RF noise immunity
-40°C to 85°C operating temperature
ESD (HBM) 5KV
DFN2015-6 and DFN3020-6: Available in “Green”
Molding Compound (No Br, Sb)
Lead Free Finish/ RoHS Compliant (Note 1)
AH1822 is comprised of two Hall effect plates and an open-drain
output driver, mainly designed for battery-operation, hand-held
equipment (such as Cellular and Cordless Phone, PDA). The
total power consumption in normal operation is typically 24μW
with a 3V power source.
Either north or south pole of sufficient strength will turn the output
on. The output will be turned off under no magnetic field. While
the magnetic flux density (B) is larger than operating point (Bop),
the output will be turned on (low), the output is held until B is
lower than release point (Brp), then turned off.
Applications
Cover switch in clam-shell cellular phones
Cover switch in Notebook PC/PDA
Contact-less switch in consumer products
Ordering Information
AH 1822 - XXX G - 7
Package
FT4 : DFN2015-6
FU4 : DFN3020-6
Green
G : Green
Packing
7 : Tape & Reel
Device
AH1822-FT4G-7
AH1822-FU4G-7
Package
Code
FT4
FU4
Packaging
(Note 2)
DFN2015H4-6
DFN3020H4-6
7” Tape and Reel
Quantity
Part Number Suffix
3000/Tape & Reel
-7
3000/Tape & Reel
-7
Notes:
1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied, see EU Directive 2002/95/EC Annex Notes.
2. 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.
AH1822 Rev. 5
1 of 9
www.diodes.com
FEBRUARY 2009
© Diodes Incorporated






AH1822 Datasheet, Funktion
Marking Information
AH1822
MICROPOWER OMNIPOLAR HALL-EFFECT SENSOR
SWITCH
(1) DFN2015-6
( Top View )
XX
YWX
Pin 1 indicator
XX : Identification Code
Y : Year : 0~9
W : Week : A~Z : 1~26 week;
a~z : 27~52 week; z represents
52 and 53 week
X : A~Z : Green
Part Number
AH1822
Package
DFN2015-6
Identification Code
K7
(2) DFN3020-6
( Top View )
XX
YWX
Pin 1 indicator
XX : Identification Code
Y : Year : 0~9
W : Week : A~Z : 1~26 week;
a~z : 27~52 week; z represents
52 and 53 week
X : A~Z : Green
Part Number
AH1822
Package
DFN3020-6
Identification Code
K8
AH1822 Rev. 5
6 of 9
www.diodes.com
FEBRUARY 2009
© Diodes Incorporated

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