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Pin Assignment
AH285
HALL-EFFECT SMART FAN MOTOR CONTROLLER
Vdd 1
GND 2 285
5 FG
DO 3
74 DOB
SOT89-5L
Pin Descriptions
Block Diagram
Symbol
FG
Vdd
DO
DOB
GND
Description
Frequency Generation
Input Power
Output Pin
Output Pin
Ground
Vdd
2
Regulator
Hall
Plate
Amp.
Lock shutdown
and
Automatic recovery
Control Logic
3 DO
4 DOB
AH285 Rev. 2
5
1
GND
FG
2 of 8
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JANUARY 2007
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