ATS137 データシートの表示（PDF） - Anachip Corporation

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ATS137

Single Hall Effect Switch

Anachip Corporation 

Single Hall Effect Switch

ATC

ATS137

„ Application Information (Continued)

Vo will turn on(low) if the S magnetic flux larger than operation point (Bop), and turns off whenever the

magnetic flux is removed and lower than release point (Brp). The related waveforms are shown in Fig.3.

magnetic flux (mT)

Bop

S

S

Brp

Marking side

t

Vo

Marking side

N

N

Vcc

( SOT23 ) ( SIP3 )

Vce(sat)

t

Fig.3 Vo and magnetic flux variety

The major applications are for contactless switching and shown as follows:

- VCD/DVD loader, CD/DVD ROM: Detect if the tray is opened or closed

- Cover detector (open/close): Cellular phone cover detector, Refrigerator door detector, Microwave oven

door sensor… etc

- Home safety: instead of reed relay to detect the situation of door/window.

- Due to contactless and without mechanical contact point, its reliability and life cycle are much longer than

reed relay. In addition, its switching speed is much faster than mechanical devices.

Anachip Corp.

www.anachip.com.tw

Rev.1.1 Jan. 09, 2006

5/8

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