Diodes AH286-YL-B Hall-effect smart fan motor controller Datasheet

AH286
HALL-EFFECT SMART FAN MOTOR CONTROLLER
General Description
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
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
Note:
1.
Package
Lead-Free
Packing
P : SIP-5L
Y : SOT89-5L
L : Lead-Free
-B : Bulk
-7/-13 : Taping
RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Device
Lead-free
AH286-P
AH286-Y
Package
Code
P
Y
Packaging
SIP-5
SOT89-5
Quantity
1000
NA
Tube/Bulk
Part Number Suffix
-B
NA
7” Tape and Reel
Quantity
Part Number Suffix
NA
NA
2500/Tape & Reel
-13
Lead-free
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
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AH286
HALL-EFFECT SMART FAN MOTOR CONTROLLER
Pin Assignment
( Front View )
286
Vdd 1
1 : RD
5 RD
2 : Vdd
3 : DO
286
GND 2
4 : DOB
5 : GND
DO 3
74 DOB
1 2 3 4 5
SOT89-5L
SIP-5L
Pin Descriptions
Symbol
RD
Vdd
DO
DOB
GND
AH286 Rev. 4
Description
Rotor-state detection
Input power
Output pin
Output pin
Ground
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AH286
HALL-EFFECT SMART FAN MOTOR CONTROLLER
Block Diagram
Vdd
2
Lock Shutdown
and
Automatic Recovery
Regulator
Hall
Plate
3
DO
4
DOB
Control Logic
Amp.
5
1
RD
GND
Typical Application Circuit (SIP-5L)
D2
Vdd
(12V)
R pu
286
D1
Coil 2
1
2
3
4
Coil 1
5
GND
RD
48V
C1=1uF
48V
12V DC Brush-Less Fan with RD Output Function
AH286 Rev. 4
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AH286
HALL-EFFECT SMART FAN MOTOR CONTROLLER
Absolute Maximum Ratings
(TA = 25°C)
Characteristics
Supply Voltage
IO(AVE)
Output Current
Power Dissipation
PD
Operating Temperature
Storage Temperature
Maximum Junction Temp.
θJA
Thermal Resistance
Symbol
Vdd
SIP5/SOT89-5
IO(PEAK)
SIP5
SOT89-5
Topr
Tstg
Tj
SIP5
SOT89-5
Rating
24
500
700
550
800
-40 ~ 100
-55 ~ 150
150
227
156
Unit
V
mA
mW
°C
°C
°C
°C/W
TA
TJ
Tc
θ JA
θ JC
Note:
θ JA
should be confirmed with what heat sink thermal resistance. If no heat sink contacting,
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θ JA
is almost the same as
θ JC .
JANUARY 2007
© Diodes Incorporated
AH286
HALL-EFFECT SMART FAN MOTOR CONTROLLER
Electrical Characteristics
Characteristics
(TA = 25 °C, Vdd =12V, unless otherwise specified)
Symbol
Conditions
Min.
Typ.
Max.
Unit
Supply Voltage
Vdd
3.8
-
20
V
Supply current
Idd
Operating
Operating
-
2.0
4.0
mA
Output Leakage Current
Ioff
VOUT=24V
-
< 0.1
10
µA
Locked Protection On
Tlrp-on
0.4
0.5
0.6
Sec
Locked Protection Off
Tlrp-off
2.4
3
3.6
Sec
IO=300mA
-
375
500
IO=500mA
-
625
900
Rds(on)
IO=300mA
-
1.25
1.67
ohm
RD output Vds
Vol
IO=10mA
-
0.5
-
V
Output Zener-breakdown Voltage
Vz
35
42
60
V
Output saturation voltage
VOUT( sat )
Output On resistance
Truth Table
INH
L
-
IN+
L
H
-
CT
L
L
H
Magnetic Characteristics
OUT1
H
L
off
OUT2
L
H
off
RD
L
L
H
mV
Mode
Rotating
Rotating
Lockup protection activated
(TA = 25 °C, Vdd = 12V, unless otherwise specified)
(1mT=10 Gauss)
Characteristics
Symbol
Min.
Typ.
Max.
Unit
Operate Point
Bop
10
30
60
Gauss
Release Point
Brp
-60
-30
-10
Gauss
Hysteresis
Bhy
--
60
--
Gauss
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AH286
HALL-EFFECT SMART FAN MOTOR CONTROLLER
Operating Characteristics
DO
12
RP
Output Voltage in Volts
Output Voltage in Volts
DOB
OFF
10
8
6
4
2
ON
OP
Vsat
Brp
0
12
OFF
8
6
4
2
RP
ON
Vsat
Bop
Brp
Magnetic Flux Density in Gauss
0
Bop
Magnetic Flux Density in Gauss
S
S
Marking
side
AH286 Rev. 4
OP
10
Marking
side
N
N
( SIP5 )
( SOT89-5 )
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AH286
HALL-EFFECT SMART FAN MOTOR CONTROLLER
Performance Characteristics (SIP-5L)
25
550
105
198
TA (°C)
PD(mW)
TA (°C)
PD (mW)
50
440
110
176
60
396
115
154
70
352
120
132
80
308
125
110
85
286
130
88
90
264
135
66
95
242
140
44
100
220
150
0
P o w e r D is s ip a tio n C u rve
P D (m W )
600
500
400
300
200
100
0
0
25
50
75
100
125
150
T A (°C )
Performance Characteristics
(SOT89-5L)
TA (°C)
25
50
60
70
75
80
85
90
95
100
PD (mW)
800
640
576
512
480
448
416
384
352
320
TA (°C)
105
110
115
120
125
130
135
140
145
150
PD (mW)
288
256
224
192
160
128
96
64
32
0
PD (mW)
Power Dissipation Curve
900
800
700
600
500
400
300
200
100
0
0
25
50
75
100
125
150
TA(°C)
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AH286
HALL-EFFECT SMART FAN MOTOR CONTROLLER
Marking Information
(1) SIP-5L
( Front View )
Part Number
Internal code a~z: Lead Free
286
Y WW X x
Y :Year: "1" = 2001
"2" = 2002
WW : Nth week 01~52
X : Internal Code: A ~ Z
(2) SOT89-5L
4
7
5
Y : Year: 0-9
M : Month: A~L
286 Y M X
1
AH286 Rev. 4
2
X : Internal code a~z: Lead Free
3
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AH286
HALL-EFFECT SMART FAN MOTOR CONTROLLER
Package Information ( unit: mm )
(1) Package type: SIP-5L
Location of Sensing Point
2.006 mm
[0.079 inch]
( Top View)
1.016 mm
[0.04 inch]
1
AH286 Rev. 4
2
3
4
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AH286
HALL-EFFECT SMART FAN MOTOR CONTROLLER
(2) Package type: SOT89-5L
Sensor Location
IMPORTANT NOTICE
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further
notice to any product herein. Diodes Incorporated does not assume any liability arising out of the application or use of any product described herein; neither
does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such use and will
agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages.
LIFE SUPPORT
Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the
President of Diodes Incorporated.
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