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Pin Assignment
AH291
LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Front View
291
1 : Vdd
2 : DO
3 : DOB
12 3 4
4 : GND
SIP-4L
Vdd 1
5 NC
GND 2 AH291
DO 3
74 DOB
SOT89-5L
Pin Descriptions
Name
Vdd
DO
DOB
GND
NC
Description
Input Power
Output Pin
Output Pin
Ground
Not Connected
AH291 Rev. 3
2 of 10
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JANUARY 2007
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