AH9246

Document number: DS38097 Rev.2 - 2

1 of 10

www.diodes.com

September 2015

© Diodes Incorporated

AH9246

ULTRA HIGH SENSITIVITY

MICROPOWER OMNIPOLAR HALL-EFFECT SWITCH

Description

The AH9246 is an ultra high sensitivity Hall-effect switch with internal

pull-up resistor on the output, designed for battery operated handheld

equipments to industrial applications.

A chopper stabilized architecture improves stability of magnetic switch

points over the whole operating range. A sleep-awake logic controls

the sleep and awake time to reduce the average operating current of

the device. During the awake time, the output is changed with the

magnetic flux density. During the sleep time, the output is latched in

its previous state and the current consumption reduces to 4µA typical

at 3V. The average current consumption is 8µA at 3V.

The output can be switched on with either north or south pole of

sufficient strength. If the magnetic flux density perpendicular to the

be turned off.

The AH9246 is available in industry standard TO92S and SC59

packages.

Features

 Omnipolar Operation (Switching with North or South Poles)

 Micropower Operation

 Built in Pull-up Resistor on the Output

 2.5V to 5.5V Power Supply

 Stabilized Chopper

 Superior Temperature Stability

 Digital Output Signal

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

 ESD (HBM): 5000V

 Small Low Profile Industry Standard SC59 and TO92S Packages

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

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

Pin Assignments

(Front View)

TO92S

(Top View)

SC59

Applications

 Cover Switch in Notebook PC/PDA

 Handheld Wireless Application Awake Switch

 Magnet Switch in Low Duty Cycle Applications

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/quality/lead_free.html

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.

1

2

3

GND

OUTPUT

3

2

1

GND

OUTPUT