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Diodes Semiconductor Electronic Components Datasheet

AH286 Datasheet

HALL-EFFECT SMART FAN MOTOR CONTROLLER

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AH286 pdf
AH286
HALL-EFFECT SMART FAN MOTOR CONTROLLER
Features
On chip Hall sensor
Rotor-locked shutdown
Automatically restart
Rotor-state detection (RD) output
Built-in Zener protection for output driver
Operating voltage: 3.8V~20 V
Output current: IO(AVE) = 500mA for SOT89-5L
Lead Free Packages: SIP-5L and SOT89-5L
General Description
AH286 is a monolithic fan motor controller with Hall sensor’s
capability. It contains two complementary open-drain transistors
for motor’s coil driving, automatic lock current shutdown, and
recovery protections. In addition, rotor-state detection (RD)
output is for Rotor-state detection.
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
AH286 - X X X
Package
P : SIP-5L
Y : SOT89-5L
Lead-Free
Packing
L : Lead-Free
-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
Code
Packaging
Tube/Bulk
Quantity Part Number Suffix
AH286-P
Lead-free
AH286-Y
Lead-free
P
Y
SIP-5
SOT89-5
1000
NA
-B
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.
AH286 Rev. 4
1 of 10
www.diodes.com
JANUARY 2007
© Diodes Incorporated



Diodes Semiconductor Electronic Components Datasheet

AH286 Datasheet

HALL-EFFECT SMART FAN MOTOR CONTROLLER

No Preview Available !

AH286 pdf
Pin Assignment
286
123 45
( Front View )
1 : RD
2 : Vdd
3 : DO
4 : DOB
5 : GND
SIP-5L
Pin Descriptions
AH286
HALL-EFFECT SMART FAN MOTOR CONTROLLER
Vdd 1
GND 2
286
5 RD
DO 3
74 DOB
SOT89-5L
Symbol
RD
Vdd
DO
DOB
GND
Description
Rotor-state detection
Input power
Output pin
Output pin
Ground
AH286 Rev. 4
2 of 10
www.diodes.com
JANUARY 2007
© Diodes Incorporated



Diodes Semiconductor Electronic Components Datasheet

AH286 Datasheet

HALL-EFFECT SMART FAN MOTOR CONTROLLER

No Preview Available !

AH286 pdf
Block Diagram
AH286
HALL-EFFECT SMART FAN MOTOR CONTROLLER
Vdd
2
Regulator
Hall
Plate
Amp.
Lock Shutdown
and
Automatic Recovery
Control Logic
3 DO
4 DOB
5
GND
Typical Application Circuit (SIP-5L)
1
RD
Vdd
(12V)
RD
D2
R pu
D1
286
Coil 2
1 2345
Coil 1
C1=1uF
GND
48V
48V
12V DC Brush-Less Fan with RD Output Function
AH286 Rev. 4
3 of 10
www.diodes.com
JANUARY 2007
© Diodes Incorporated




Part Number AH286
Description HALL-EFFECT SMART FAN MOTOR CONTROLLER
Maker Diodes Incorporated
Total Page 10 Pages
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