Diodes AH287-YL-13 High voltage hall-effect smart fan motor Datasheet

AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
General Description
Features
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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 Packages: SIP-4L and SOT89-5L (Note 1)
SIP-4L and SOT89-5L: Available in “Green” Molding
Compound (No Br, Sb)
Lead Free Finish/ RoHS Compliant (Note 2)
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.
Typical Application Circuit
D2
24V
L2
287
D1
1
2
3
L1
4
GND
DOB
D3
C1
48V
DO
48V
Note: 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.
24V Brush-Less DC Fan
AH287 Rev. 10
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AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Ordering Information
AH 287 - X X - X
Package
P : SIP-4L
Y : SOT89-5L
Device
Package
Code
Packaging
(Note 3)
P
P
Y
Y
SIP-4L
SIP-4L
SOT89-5L
SOT89-5L
AH287-PL-B
AH287-PG-B
AH287-YL-13
AH287-YG-13
Notes:
Lead Free
Packing
L : Lead Free (Note 1)
G : Green
B : Bulk
13 : Tape & Reel
Bulk
Part Number
Quantity
Suffix
1000
-B
1000
-B
NA
NA
NA
NA
13” Tape and Reel
Part Number
Quantity
Suffix
NA
NA
NA
NA
2500/Tape & Reel
-13
2500/Tape & Reel
-13
1. AH287-YL-13 will be replaced by AH287-YG-13
2. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at
http://www.diodes.com/products/lead_free.html.
3. 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.
4. Reverse taping as shown on Diodes Inc. Surface Mount (SMD) Packaging document AP02007, which can be found on our website
http://www.diodes.com/datasheets/ap02007.pdf.
Pin Assignment
( Top View )
( Top View )
287
Vdd 1
5 NC
1 : Vdd
2 : DO
GND 2
3 : DOB
287
DO 3
74 DOB
4 : GND
1 2
3
4
SOT89-5L
SIP-4L
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AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Pin Descriptions
Pin Name
Description
Vdd
Input Power
DO
Output Pin
DOB
Output Pin
GND
Ground
NC
Not Connected
Block Diagram
Vdd
Lock Shutdown
and
Automatic Recovery
Regulator
DO
Hall
Plate
Amp.
Control Logic
DOB
GND
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AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Absolute Maximum Ratings
Symbol
Vdd
Supply Voltage
IO
Output Current
(TA = 25°C)
Characteristics
IO(AVE)
SOT89-5L
IO(PEAK)
SIP-4L
SOT89-5L
PD
Power Dissipation
TST
TJ
Storage Temperature
Maximum Junction Temperature
Thermal Resistance Junction-to-Case
(Note 5)
θJA
SIP-4L
SIP-4L
SOT89-5L
Rating
30
400
Unit
V
mA
400
700
550
800
-55 ~ 150
150
227
156
mA
mA
mW
mW
°C
°C
°C/W
°C/W
TA
TJ
Tc
θ JA
θ JC
Notes:
5.
θJA should be confirmed with what heat sink thermal resistance. If no heat sink contacting, θJA is almost the same as θJC..
Recommended Operating Conditions
Symbol
Vdd
TA
Notes:
Characteristic
Supply Voltage (Note 6)
Operating Ambient Temperature
Conditions
Min
Max
Unit
Operating
Operating
3.8
-40
28
100
V
°C
6. Please watch out the current limit issue when the operation voltage is over 26.4V, because of the different efficiency in the coil.
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HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Electrical Characteristics
Symbol
Idd
IOFF
(TA = 25 °C, Vdd =24V, unless otherwise specified)
Characteristics
TLRP-ON
TLRP-OFF
Supply Current
Output Leakage Current
Locked Protection On
Locked Protection Off
VOUT(SAT)
Output Saturation Voltage
RDS(ON)
Vz
Truth Table
INH
L
-
Operating
VOUT=24V
Output On Resistance
Output Zener-Breakdown Voltage
IN+
L
H
-
CT
L
L
H
Magnetic Characteristics
Conditions
OUT1
H
L
off
IO=200mA
IO=300mA
IO=200mA
OUT2
L
H
off
Min
Typ.
Max
Unit
0.4
2.4
42
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
mV
mV
ohm
V
Mode
Rotating
Rotating
Lockup protection activated
(TA = 25 °C, Vdd = 24V, unless otherwise specified, Note 7)
(1mT=10 Gauss)
Symbol
Bop
Brp
Bhy
Notes:
Characteristics
Operate Point
Release Point
Hysteresis
Min
Typ.
Max
Unit
10
-60
--
30
-30
60
60
-10
--
Gauss
Gauss
Gauss
7. Magnetic characteristics are for design information, which will vary with supply voltage, operating temperature and after soldering.
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AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Operating Characteristics
DO
24
RP
Output Voltage in Volts
Output Voltage in Volts
DOB
OFF
20
16
12
8
4
ON
OP
Vsat
Brp
0
16
12
8
4
RP
Bop
ON
Brp
0
Bop
Magnetic Flux Density in Gauss
S
S
Marking
side
Marking
side
N
( SIP-4L )
OP
20
Vsat
Magnetic Flux Density in Gauss
AH287 Rev. 10
DS31042
24
OFF
N
( SOT89-5L )
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HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Performance Characteristics
(1) SIP-4L
TA (°C)
PD (mW)
TA (°C)
PD (mW)
25
550
105
198
50
440
110
176
P D (mW )
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
Po w er D iss ipation Cu rv e
6 00
5 00
4 00
3 00
2 00
1 00
0
0
25
50
75
10 0
125
15 0
T A (°C )
(2) SOT89-5L
TA (°C)
PD (mW)
TA (°C)
PD (mW)
25
800
105
288
P D (mW )
50
640
110
256
60
576
115
224
70
512
120
192
75
480
125
160
80
448
130
128
85
416
135
96
90
384
140
64
95
352
145
32
100
320
150
0
Power Dissipation Curve
900
800
700
600
500
400
300
200
100
0
-4
00
25
50
75
10 0
125
1 50
T A (°C)
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HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Marking Information
(1) SIP-4L
( Top View )
Part Number
287
Y WW X
Y : Year : 0~9
WW : Week : 01~52, "52" represents
52 and 53 week
X : Internal Code : A~Z : Green
a~z : Lead Free
(2) SOT89-5L
( Top View )
4
7
5
287 Y W X
1
AH287 Rev. 10
DS31042
2
3
Y : Year : 0~9
W : Week : A~Z : 1~26 week;
a~z : 27~52 week;
z represents 52 and 53 week
X : Internal code
A~Z : Green
a~z : Lead Free
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HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Package Information
(All Dimensions in mm)
(1) Package type: SIP-4L
Marking side
1.95士0.1mm
1.1士0.1mm
1
0.7 mm
2
3
4
Sensor Location
Active Area Depth
Package Dimension
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HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Package Information
(Continued)
(2) Package type: SOT89-5L
Sensor Location
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AH287
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
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without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided
in the labeling can be reasonably expected to result in significant injury to the user.
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A critical component is any component in a life support device or system whose failure to perform can be reasonably expected
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Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes
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Copyright © 2010, Diodes Incorporated
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