AH284
HALL-EFFECT SMART FAN MOTOR CONTROLLER
General Description
Features
•
•
•
•
•
•
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On Chip Hall Sensor
Rotor-Locked Shutdown
Automatically Restart
Built-in Zener Protection for Output Driver
Operating Voltage: 3.8V~20 V
Output Current: IO(AVE) = 500mA for SIP-4/SOT89-5
Lead Free Finish/RoHS Compliant for Lead Free
products (Note 1)
AH284 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.
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.
•
Lead Free Packages: SIP-4L and SOT89-5L
Ordering Information
AH284 - X X X
Packing
-B :
Bulk
-7/-13: Taping
Package
Lead
P: SIP-4L
Y: SOT89-5L
L : Lead Free
Note:
1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Tube/Bulk
Part Number
7” Tape and Reel
Package Packaging
Device
Part Number
Code
(Note 2)
Quantity
Quantity
Suffix
Suffix
AH284-P
AH284-Y
P
Y
SIP-4L
SOT89-5
1000
NA
-B
NA
NA
-13
Lead-free
Lead-free
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.
AH284 Rev. 3
1 of 9
JANUARY 2007
www.diodes.com
© Diodes Incorporated