Features
AH1884
MICROPOWER, ULTRA-SENSITIVE HALL EFFECT
SWITCH
General Description
• Micropower operation
• Operation with North or South Pole
• 1.65 to 3.3V 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 > 4KV in human body mode
• SOT553: Available in “Green” Molding Compound
(No Br, Sb)
• Lead Free Finish/RoHS Compliant (Note 1)
AH1884 is with two Hall effect plates and dual CMOS output
driver, mainly designed for battery–powered, hand-held
equipment (such as Cellular and Cordless Phone, PDA). The
total operation power is down to 15uW in the 1.8V 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.
Applications
• Cellular phone
• PDA
• Cordless phone
Ordering Information
AH1884 - X X X
Package
Z : SOT553
Lead Free
G : Green
Packing
-7 : Taping
Note: 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Device
AH1884-Z
Package Code
Z
Packaging
(Note 2)
SOT553
7” Tape and Reel
Quantity
Part Number
Suffix
3000/Tape & Reel
-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.
AH1884 Rev. 3
1 of 7
www.diodes.com
JULY 2007
© Diodes Incorporated