Diodes AH1806 User Manual
New prod uc t ah1806, Description, Features
AH1806
Document number: DS36104 Rev. 4 - 2
1 of 10
February 2014
© Diodes Incorporated
NEW PROD
UC
T
AH1806
HIGH SENSIVITY MICROPOWER
OMNIPOLAR HALL-EFFECT SWITCH
Description
The AH1806 is a high-sensitivity, micro power Omnipolar Hall Effect
switch IC designed for portable and battery powered consumer
equipment such as cellular phones, PDA’s and portable PC’s to home
appliance and industrial applications such as smart meter magnetic
tamper detection. Based on two sensitive Hall Effect plates and a
copper stabilized architecture the AH1806 provides a reliable solution
over the whole operating range. To support portable and battery
powered equipment the design has been 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 switched on with either a North or
South pole of sufficient field 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.
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 Packages
•
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
•
Halogen and Antimony Free. “Green” Device (Note 3)
Pin Assignments
(Top View)
SC59
(Top View)
SOT553
Applications
•
Cover Switch in Clam-Shell or Slide Type Cellular Phones
•
Display Switch for Portable PCs
•
On/Off Switch for PDAs and Digital Cameras
•
Contact-Less Switch in Consumer Products
• Smart-Emeters
•
Position, Proximity and Level Detection Contact-Less Switch in
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. S 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.