DIODES AH287-YL-B

AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
General Description
Features
•
•
•
•
•
•
•
AH287 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.
On chip Hall sensor
Rotor-locked shutdown
Automatically restart
Built-in Zener protection for output driver
Operating voltage: 3.8V~28V
Output current: IO(AVE) = 400mA
Lead Free Finish/RoHS Compliant for Lead Free
products (Note 1)
Lead Free Packages: SIP-4L and SOT89-5L
•
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
AH287 - X X X
Note:
1.
Lead-Free
P: SIP-4L
Y: SOT89-5L
L : Lead Free
Packing
-B :
-13 :
Bulk
Taping
RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7.
Device
Lead-free
Package
AH287-P
AH287-Y
Package
Code
P
Y
Packaging
(Note 2)
SIP-4L
SOT89-5L
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.
AH287 Rev. 4
1 of 10
www.diodes.com
JANUARY 2007
© Diodes Incorporated
AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Pin Descriptions
Pin Assignment
Front View
287
Name
Vdd
DO
DOB
GND
NC
1 : Vdd
2 : DO
3 : DOB
Description
Input power
Output pin
Output pin
Ground
Not connected
4 : GND
1 2
3
4
SIP-4L
Vdd 1
5 NC
287
GND 2
DO 3
74 DOB
SOT89-5L
Block Diagram
(SIP-4L)
Vdd
1
Lock shutdown
and
Automatic recovery
Regulator
Hall
Plate
Amp.
2
DO
3
DOB
Control Logic
4
GND
AH287 Rev. 4
2 of 10
www.diodes.com
JANUARY 2007
© Diodes Incorporated
AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Typical Application Circuit (SIP-4L)
D2
24V
L2
287
L1
D1
1
2
3
4
GND
DOB
D3
C1
48V
DO
48V
24V brush-less DC fan
Note: 3. The optional Capacitor C1 and Diode D3 are for power stabilization. C1 is recommended to be E-Cap., luF/25V; D3 is recommended to be Zener
Diode, VZ =27V. Which C1and D3 value need to be fine tuned to optimize design for different coils and power suppliers.
Absolute Maximum Ratings
(TA = 25°C)
Characteristics
Supply Voltage
Symbol
Vdd
SIP-4L/SOT89-5L
IO(PEAK)
SIP-4L
SOT89-5L
Topr
Tstg
Tj
SIP-4L
SOT89-5L
IO(AVE)
Output Current
Power Dissipation
PD
Operating Temperature
Storage Temperature
Maximum Junction Temp.
θ JA
Thermal Resistance
Rating
30
400
700
550
800
-40 ~ 100
-55 ~ 150
150
227
156
Unit
V
mA
mW
°C
°C
°C
°C/W
°C/W
TA
TJ
Tc
θ JA
θ JC
Note:
4.
θ JA
AH287 Rev. 4
should be confirmed with what heat sink thermal resistance. If no heat sink contacting,
3 of 10
www.diodes.com
θ JA
is almost the same as
θ JC .
JANUARY 2007
© Diodes Incorporated
AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Electrical Characteristics
Characteristics
(TA = 25 °C, Vdd =24V, unless otherwise specified)
Symbol
Conditions
Min.
Typ.
Max.
Unit
Vdd
Operating
3.8
-
28*
V
Supply current
Output Leakage Current
Locked Protection On
Locked Protection Off
Icc
Ioff
Tlrp-on
Tlrp-off
Operating
VOUT=24V
VOUT( sat )
Output On resistance
Output Zener-breakdown Voltage
Rds(on)
Vz
2.0
< 0.1
0.46
2.76
450
680
2.25
55
4.0
10
0.6
3.6
700
800
3.5
65
mA
µA
Sec
Sec
Output saturation voltage
0.4
2.4
42
Supply Voltage
IO=200mA
IO=300mA
IO=200mA
mV
ohm
V
*Note: Please watch out the current limit issue when the operation voltage is over 26.4V, because of the different efficiency in the coil.
Truth Table
INH
L
-
IN+
L
H
-
CT
L
L
H
Magnetic Characteristics
OUT1
H
L
off
OUT2
L
H
off
Mode
Rotating
Rotating
Lockup protection activated
(TA = 25 °C, Vdd = 24V, unless otherwise specified)
(1mT=10 Gauss)
Characteristics
Symbol
Min.
Typ.
Max.
Unit
Operate Point
Release Point
Hysteresis
Bop
Brp
Bhy
10
-60
--
30
-30
60
60
-10
--
Gauss
Gauss
Gauss
AH287 Rev. 4
4 of 10
www.diodes.com
JANUARY 2007
© Diodes Incorporated
AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Operating Characteristics
DO
24
RP
OFF
20
16
12
8
4
ON
OP
Output Voltage in Volts
Output Voltage in Volts
DOB
Vsat
Brp
0
OP
20
16
12
8
4
RP
ON
Vsat
Bop
Brp
Magnetic Flux Density in Gauss
0
Bop
Magnetic Flux Density in Gauss
S
S
Marking side
Marking side
AH287 Rev. 4
24
OFF
N
N
( SIP4 )
( SOT89-5 )
5 of 10
www.diodes.com
JANUARY 2007
© Diodes Incorporated
AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Performance Characteristics
25
550
105
198
TA (°C)
PD (mW)
TA (°C)
PD (mW)
(SIP-4L)
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
Power Dissipation Curve
P D (mW )
600
500
400
300
200
100
0
0
15
30
45
60
Performance Characteristics
75
90
105
100
120
135
150
T A (。C)
(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
P D (m W )
P o w e r D is s ip a tio n C u rve
900
800
700
600
500
400
300
200
100
0
0
25
50
75
100
125
150
T A (。 C )
AH287 Rev. 4
6 of 10
www.diodes.com
JANUARY 2007
© Diodes Incorporated
AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Marking Information
(1) SIP-4L
( Front View )
Part Number
287
L : Lead Free Package
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
287 Y M X
1
AH287 Rev. 4
2
X : Internal code
a~z : Lead Free
3
7 of 10
www.diodes.com
JANUARY 2007
© Diodes Incorporated
AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Package Information
(unit: mm)
(1) SIP-4L
Active Area Depth
Package Sensor Location
Marking side
1.97mm
1.04mm
1
0.7mm
2
3
4
Package Dimension
AH287 Rev. 4
8 of 10
www.diodes.com
JANUARY 2007
© Diodes Incorporated
AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Package Information
(Continued)
(2) SOT89-5L
Sensor Location
AH287 Rev. 4
9 of 10
www.diodes.com
JANUARY 2007
© Diodes Incorporated
AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
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.
AH287 Rev. 4
10 of 10
www.diodes.com
JANUARY 2007
© Diodes Incorporated