AH293

Low Voltage Hall-Effect Smart Fan Motor Controller

Anachip Corp.

www.anachip.com.tw

Rev 0.5 Jun 18, 2004

2/9

Block Diagram (SIP5)

Hall

Plate

Control Logic

Regulator

Lock shutdown

and

Automatic recovery

VCC

GND

DOB

DO

Amp.

2

3

4

5

1

RD

Typical Application Circuit

293

1

5

4

3

2

Vcc

(1.8V/5.75V)

Coil2

Coil1

RD

(alarm)

GND

C1

10uF

+

D1

1.8V/5.75V DC Brush-less Fan with RD output function