Datasheet > AH1889-Z-7

AH1889-Z-7

更新时间： 2022-04-11 23:11:45

品牌	Logo	应用领域
美台 - DIODES		开关
页数	文件大小	规格书
7页	342K
描述
HIGH SENSIVITY DUAL UNIPOLAR HALL-EFFECT SWITCH

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AH1889-Z-7 数据手册

AH1889

HIGH SENSIVITY DUAL UNIPOLAR HALL-EFFECT SWITCH

Description

Pin Assignments

AH1889 is a high sensitivity dual output Unipolar Hall effect IC which

can detect either a North or South pole independently and switch one

of its two outputs with internal pull up and pull down capability. The

AH1889 is mainly designed for low voltage applications which require

a quick response time and can operate over the supply voltage of

1.65V to 3.6V. To minimize PCB space AH1889 outputs have internal

pull up and pull down capability and is packaged in a small low profile

SOT553 package.

(Top View)

A South pole of sufficient strength will turn OUTPUT1 on and a North

pole of sufficient strength with turn on OUTPUT2. While the magnetic

flux density (B) perpendicular to the package is larger than operate

point Bops or Bopn, the appropriate output will be turned on (pulled

low), the output is held until B is lower than release point Brps or

Brps, then turned off (high). The outputs will be turned off and will

remain off when there is no magnetic field.

SOT553

Applications

Features



Position and proximity detection for consumer, office equipments

and industrial applications



Two Monolithic Unipolar Hall Effect Sensor Switch

Operation with a South Pole (OUTPUT1)

Operation with a North Pole (OUTPUT2)



Open and close detect switches for home appliances

Door, lids, tray position detect switches



Supply Voltage of 1.65V to 3.6V

Magnetic field direction detection

Quick Response Time Without Sleep Mode

Chopper Stabilized Design Provides:

Contact-less switches for consumer and industrial applications

Superior Temperature Stability

Extremely low Switch-Point Drift

Enhanced immunity to physical stress



Good RF Noise Immunity

-40°C to +85°C Operating Temperature

ESD (Human Body Model) >4kV

Small and Low Profile SOT553 package

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

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

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.

Typical Applications Circuit

Note:

4. C_INis for power stabilization and to strengthen the noise immunity, the recommended capacitance 100nF typical.

1 of 7

www.diodes.com

April 2013

AH1889

Document number: DS36256 Rev. 1 - 2

12 3 4 5 6 7

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