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AH286 Datasheet PDF - Diodes Incorporated

Part Number AH286
Description HALL-EFFECT SMART FAN MOTOR CONTROLLER
Manufacturers Diodes Incorporated 
Logo Diodes Incorporated Logo 



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AH286 datasheet, circuit
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

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AH286 equivalent
AH286
HALL-EFFECT SMART FAN MOTOR CONTROLLER
Electrical Characteristics (TA = 25 °C, Vdd =12V, unless otherwise specified)
Characteristics
Supply Voltage
Supply current
Output Leakage Current
Locked Protection On
Locked Protection Off
Output saturation voltage
Output On resistance
RD output Vds
Output Zener-breakdown Voltage
Symbol
Vdd
Idd
Ioff
Tlrp-on
Tlrp-off
VOUT( sat )
Rds(on)
Vol
Vz
Conditions
Operating
Operating
VOUT=24V
IO=300mA
IO=500mA
IO=300mA
IO=10mA
Min. Typ. Max. Unit
3.8 - 20 V
- 2.0 4.0
- < 0.1 10
0.4 0.5 0.6
mA
µA
Sec
2.4 3 3.6 Sec
- 375 500
mV
- 625 900
- 1.25 1.67 ohm
- 0.5 -
V
35 42 60
V
Truth Table
IN-
H
L
-
IN+
L
H
-
CT OUT1 OUT2 RD
Mode
LHL L
Rotating
L LHL
Rotating
H off off H Lockup protection activated
Magnetic Characteristics (TA = 25 °C, Vdd = 12V, unless otherwise specified)
Characteristics
Operate Point
Release Point
Hysteresis
Symbol
Bop
Brp
Bhy
Min.
10
-60
--
Typ.
30
-30
60
Max.
60
-10
--
(1mT=10 Gauss)
Unit
Gauss
Gauss
Gauss
AH286 Rev. 4
5 of 10
www.diodes.com
JANUARY 2007
© Diodes Incorporated

5 Page
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Information Total 10 Pages
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