ah287-y Diodes, Inc., ah287-y Datasheet - Page 2

• Manufacturer Part Number: ah287-y
• Description: High Voltage Hall-effect Smart Fan Motor Controller
• Manufacturer: Diodes, Inc.

Pin Assignment
Block Diagram
AH287 Rev. 4
GND
Vdd
1 2
DO
287
1
2
3
3
SOT89-5L
Regulator
4
287
Vdd
SIP-4L
1
Front View
1 : Vdd
2 : DO
3 : DOB
4 : GND
7 4
5
Plate
Hall
DOB
NC
(SIP-4L)
Amp.
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
www.diodes.com
Automatic recovery
2 of 10
GND
Lock shutdown
4
Control Logic
and
Pin Descriptions
Name
GND
DOB
Vdd
DO
NC
Output pin
Output pin
Not connected
Input power
Ground
Description
2
3
CONTROLLER
DOB
DO
©
JANUARY 2007
Diodes Incorporated
AH287