AH291-P(2007) Ver la hoja de datos (PDF) - Diodes Incorporated.
Número de pieza
componentes Descripción
Fabricante
AH291-P Datasheet PDF : 9 Pages
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Features
AH291
LOW VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
General Description
• On Chip Hall Sensor
• Rotor-Locked Shutdown
• Automatically Restart
• Built-in Zener Protection for Output Driver
• Operating Voltage: 1.8V~5.75 V
• Output Current: IO(AVE) = 400 mA
• Lead Free Packages: SIP-4L and SOT89-5L
AH291 is a monolithic fan motor controller with Hall sensor’s
capability. It contains two complementary open-collector 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.
Ordering Information
AH291 - X X X
Package
Lead
P: SIP-4L L : Lead Free
Y: SOT89-5L
Packing
-B : Bulk
-7/-13 : Taping
Note: 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Device
Package Packaging
Code
(Note 2)
AH291-P
P
Lead-free
SIP-4L
AH291-Y
Y
SOT89-5L
Lead-free
Tube/Bulk
Quantity
Part Number
Suffix
1000
-B
NA
NA
7” Tape and Reel
Quantity
Part Number
Suffix
NA
NA
2500/Tape & Reel
-13
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.
AH291 Rev. 3
1 of 10
www.diodes.com
JANUARY 2007
© Diodes Incorporated
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