AH1802-SNG-7

更新时间： 2024-11-09 08:22:11

品牌	Logo	应用领域
美台 - DIODES		/
页数	文件大小	规格书
11页	225K
描述
MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR

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AH1802-SNG-7 数据手册

AH1802

MICROPOWER, ULTRA-SENSITIVE OMNIPOLAR

HALL-EFFECT SENSOR SWITCH

Description

Pin Assignments

(Top View)

The AH1802 is a ultra-sensitivity, micropower Omnipolar Hall

Effect switch IC designed for portable and battery powered

equipment such as cellular phones, PDA’s and portable

(Top View)

5. GND

6. NC

4. NC

2. Output

1. Vdd

GND 3.

PC’s.

Based on two sensitive Hall Effect plates and

a chopper stabilized architecture the AH1802 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 24uW with a supply of 3V.

SC59

1. Vdd

2. NC 3. Output

DFN2020-6

(Top View)

3. GND

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.

3. GND

1. Vdd

3. Output

1. Vdd

2. Output

DFN2020-3

DFN2015H4-3

Features

Applications

•

Omni-polar (north or south pole) operation

High sensitivity

•

Cover switch in clam-shell or slide type cellular phones

Display switch for portable PCs

Single open drain output

On/Off switch for PDAs and digital cameras

Contact-less switch in consumer products

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＞5kV for DFN2020-6, DFN2020-3 and

DFN2015H4-3

ESD＞6kV for SC59

•

Low profile SC59, DFN2020-6, DFN2020-3 and

DFN2015H4-3 packages

“Green” Molding Compound (Note 1)

Notes:

1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at

http://www.diodes.com/products/lead_free.html.

1 of 11

www.diodes.com

December 2010

AH1802

Document number: 31170 Rev. 8 - 2

12 3 4 5 6 7...11

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