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Pin Descriptions
Pin Name
RD
Vdd
DO
DOB
GND
Description
Rotor-state detection
Input power
Output pin
Output pin
Ground
Functional Block Diagram
Vdd
AH286
HALL-EFFECT SMART FAN MOTOR CONTROLLER
Regulator
Hall
Plate
Amp.
Lock detect,
shutdown and
automatic re-start
Control Logic
DO
DOB
GND
RD
AH286
Document number: DS31030 Rev. 12 - 2
2 of 9
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June 2010
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