AH180N データシートの表示（PDF） - Diodes Incorporated.

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AH180N

MICROPOWER OMNIPOLAR HALL-EFFECT SWITCH

Diodes Incorporated. 

AH180N

MICROPOWER OMNIPOLAR HALL-EFFECT SWITCH

Description

The AH180N is a high sensitivity, micro power Omnipolar Hall Effect

switch IC designed for portable and battery powered equipment such

as cellular phones, PDA’ s and portable PC’ s. Based on two sensitive

Hall Effect plates and a chopper stabilized architecture the AH180N

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 24µA with a supply of 3V.

Pin Assignments

The single open drain output can switched on with either a North or

South pole of sufficient strength. When the magnetic flux density (B)

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

ƒ Superior Temperature Stability

ƒ Minimal Switch Point Drift

ƒ Enhanced Immunity to Stress

• Good RF Noise Immunity

• -40°C to +85°C Operating Temperature

• ESD (HBM) > 6KV

• SC59 (SOT23), TSOT23, and SOT553 Low Profile Packages

• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

• Halogen and Antimony Free. “Green” Device (Note 3)

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

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 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.

AH180N

Document number: DS32174 Rev. 4 - 2

1 of 8

www.diodes.com

August 2012

© Diodes Incorporated

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