
Low Voltage Hall-Effect Smart Fan Motor Controller
Block Diagram (SIP5)
VCC
2
Regulator
Lock shutdown
and
Automatic recovery
Hall
Plate
Amp.
Control Logic
AH293
3 DO
4 DOB
5
1
GND
RD
Typical Application Circuit
Vcc
(1.8V/5.75V)
R pu
RD
(alarm)
D1
293
Coil2
1 2345
GND
+
C1
10uF
Coil1
1.8V/5.75V DC Brush-less Fan with RD output function
Anachip Corp.
www.anachip.com.tw
Rev 0.5 Jun 18, 2004
2/9