AH1803
MICROPOWER, ULTRA-SENSITIVE HALL EFFECT
SWITCH
General Description
Features
AH1803 is with two Hall effect plates and a CMOS output driver,
mainly designed for battery–operation, hand-held equipment
(such as Cellular and Cordless Phone, PDA). The total operation
power is down to 24uW in the 3V supply.
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 operate point
(Bop), the output will be turned on (low), the output is held until B
is lower than release point (Brp), then turned off (High).
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Micropower operation
Operation with North or South Pole
2.4 to 5.5V battery operation
Chopper stabilized
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Superior temperature stability
Extremely low switch-point drift
Insensitive to physical stress
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Good RF noise immunity
-40°C to 85°C operating temperature
Low profile 3 pin SC59 (commonly known as SOT23 in
Asia) and DFN2020-6 package
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ESD (HBM) > 4KV for DFN2020-6
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Lead Free Finish / RoHS Compliant (Note 1)
Green Packages: SC59 and DFN2020-6
Applications
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Cellular phone
PDA
Cordless phone
Ordering Information
AH1803 - X X X
Package
W : SC59
Packing
Lead Free
G: Green
-7 : Taping
SN : DFN2020-6
Note:
1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Packaging
(Note 2)
7” Tape and Reel
Device
Package Code
Quantity
Part Number Suffix
AH1803-W
AH1803-SN
W
SN
SC59
DFN2020-6
3000/Tape & Reel
3000/Tape & Reel
-7
-7
Note:
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.
AH1803 Rev. 1
1 of 7
JULY 2007
www.diodes.com
© Diodes Incorporated