AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
General Description
Features
AH287 is a monolithic fan motor controller with Hall sensor’s
capability. It contains two complementary open-drain drivers for
motor’s coil driving, automatic lock shutdown and restart function
relatively.
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On chip Hall sensor
Rotor-locked shutdown
Automatically restart
Built-in Zener protection for output driver
Operating voltage: 3.8V~28V
Output current: IO(AVE) = 400mA
Lead Free Finish/RoHS Compliant for Lead Free
products (Note 1)
Rotor-lock shutdown detection circuit turns off the output driver
when the rotor is blocked to avoid coil overheat. Then, the
automatic recovery circuit will restart the motor. These protected
actions are repeated and periodic during the blocked period. Until
the blocking is removed, the motor recovers and runs normally.
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Lead Free Packages: SIP-4L and SOT89-5L
Ordering Information
AH287 - X X X
Packing
Package
P: SIP-4L
Lead-Free
L : Lead Free
-B : Bulk
Y: SOT89-5L
Taping
-13 :
Note:
1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Package
Code
Packaging
(Note 2)
SIP-4L
Tube/Bulk
Part Number Suffix
7” Tape and Reel
Device
Quantity
1000
Quantity
Part Number Suffix
AH287-P
AH287-Y
P
Y
-B
NA
NA
NA
-13
Lead-free
Lead-free
SOT89-5L
NA
2500/Tape & Reel
Note: 2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at
http://www.diodes.com/datasheets/ap02001.pdf.
AH287 Rev. 4
1 of 10
JANUARY 2007
www.diodes.com
© Diodes Incorporated