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AH293 Datasheet(PDF) 3 Page - Diodes Incorporated

Part # AH293
Description  LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER
PDF  7 Pages
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Manufacturer  DIODES [Diodes Incorporated]
Direct Link  http://www.diodes.com
Logo DIODES - Diodes Incorporated

AH293 Datasheet(HTML) 3 Page - Diodes Incorporated

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AH293
LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
AH293 Rev. 2
3 of 7
JANUARY 2007
www.diodes.com
© Diodes Incorporated
Block Diagram
Hall
Plate
Control Logic
Regulator
Lock shutdown
and
Automatic recovery
Vdd
GND
DOB
DO
Amp.
2
3
4
5
1
RD
Typical Application Circuit
293
1
5
4
3
2
Vdd
(1.8V/5.75V)
Coil
2
Coil
1
R pu
RD
(alarm)
GND
D2
D1
R1
R2
C1
C2
O
56
μ
Notes: R1, R2: typical
C1, C2, C3: typical 2.2 F
The R, C value need to be fine tuned
based on coils design.
C3
1.8V/5.75V DC Brush-Less Fan with RD Output Function



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