ah284y ETC-unknow, ah284y Datasheet - Page 2

• Manufacturer Part Number: ah284y
• Description: Ah284 Is A Monolithic Fan Motor Controller With Hall
• Manufacturer: ETC-unknow

Anachip Corp.
www.anachip.com.tw
Hall-Effect Smart Fan Motor Controller
Block Diagram (SIP4)
Typical Application Circuit (SIP4)
12V
Regulator
Notes: R1, R2: typical
The R, C value need to be fine tuned
base on coils design.
Vdd
1
C1, C2, C3: typical 2.2 F
Plate
Hall
Vdd
D1
C3
Amp.
56
Ω
DO
1
D2
12V brush-less DC fan
µ
2
Automatic recovery
GND
284
Lock shutdown
4
3
Control Logic
2/9
and
4
GND
DOB
R1
C1
L2
2
3
DOB
DO
Rev 1.0 Sep 29, 2005
AH284
C2
R2
L1