Diodes AH289-YG-13 High voltage hall-effect smart fan motor Datasheet

AH289
HIGH VOLTAGE 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~28V
Output Current: IO (AVE) = 400mA
Lead Free Package: SOT89-5L (Note 1)
SOT89-5L: Available in “Green” Molding Compound
(No Br, Sb)
Lead Free Finish/ RoHS Compliant (Note 2)
AH289 is a monolithic fan motor controller with Hall sensor’s
capability. It contains two complementary open-drain transistors
for motors coil driving, an automatic lock current shutdown, and
recovery protection. In addition, the 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.
Typical Application Circuit
D2
Vdd (24V)
D1 R pu
5
4
Coil2
289
RD
1
D3
2
C1
Coil1
3
48V
GND
* Rpu : typical 10 Kohm
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 DC Brush-Less Fan with RD Output Function
AH289 Rev. 11
DS31052
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AH289
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Ordering Information
AH289 - Y L - 13
Package
Lead Free
Packing
Y : SOT89-5L
L : Lead Free (Note 1)
G : Green
13 : Tape & Reel
Package
Code
Y
Y
Device
AH289-YL-13
AH289-YG-13
Notes:
13” Tape and Reel
Quantity
Part Number Suffix
2500/Tape & Reel
-13
2500/Tape & Reel
-13
Packaging
(Note 3)
SOT89-5L
SOT89-5L
1. AH289-YL-13 will be replaced by AH289-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 Assignments
( Top View )
5 RD
Vdd 1
289
GND 2
DO 3
47 DOB
SOT89-5L
Pin Descriptions
Pin Name
Pin No.
Vdd
1
Input power
GND
2
Ground
DO
3
Output pin
DOB
4
Output pin
RD
5
Rotor-State Detection
AH289 Rev. 11
DS31052
Description
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AH289
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Block Diagram
Vdd
Lock shutdown
and
Automatic recovery
Regulator
DO
Hall
Plate
Control Logic
Amp.
DOB
GND
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AH289
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Absolute Maximum Ratings
Symbol
Vdd
(TA = 25°C)
Parameter
Supply Voltage
IO (AVE)
IO (PEAK)
Output Current
IO
PD
TST
TJ
θJA
Power Dissipation
Storage Temperature
Maximum Junction Temperature
Thermal Resistance Junction-to-Case (Note 5)
Rating
Unit
30
400
700
800
-55 ~ 150
150
156
V
mA
mA
mW
°C
°C
°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:
Supply Voltage (Note 6)
Operating Ambient Temperature
Conditions
Min
Max
Unit
Operating
Operating
3.8
-40
28
100
V
°C
6. Please watch the current limit issue when the operation voltage is over 26.4V, because of the different efficiency in the coil.
AH289 Rev. 11
DS31052
Characteristic
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AH289
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
(TA = 25 °C, Vdd = 24V, unless otherwise specified)
Electrical Characteristics
Symbol
Idd
Parameter
Conditions
Supply Current
Operating
Output Leakage Current
VOUT = 24V
Min
Typ.
Max
Unit
-
2.0
4.0
mA
-
< 0.1
10
μA
TLRP-ON
Locked Protection On
0.4
0.46
0.6
Sec
TLRP-OFF
Locked Protection Off
2.4
2.76
3.6
Sec
VOUT(SAT)
Output Saturation Voltage
IO = 200mA
-
450
700
IO = 300mA
-
680
800
Output On Resistance
IO = 200mA
-
2.25
3.5
ohm
VOL
RD Output Vds
IO = 10mA
-
0.3
0.5
V
Vz
Output Zener-Breakdown Voltage
42
55
65
V
IOFF
RDS(ON)
Truth Table (Note 7)
ININ+
H
L
L
H
Notes:
CT
L
L
H
OUT1
H
L
off
OUT2
L
H
off
RD
L
L
H
mV
Mode
Rotating
Rotating
Lockup protection activated
7. Latch-type RD output is low during rotation and high during stop.
Magnetic Characteristics
(TA = 25 °C, Vdd = 24V, unless otherwise specified, Note 8)
(1mT = 10 Gauss)
Symbol
Characteristics
Min
Typ.
Max
Unit
Bop
Operation Point
10
30
60
Gauss
Brp
Release Point
-60
-30
-10
Gauss
Bhy
Hysteresis
--
60
--
Gauss
Notes:
8. Magnetic characteristics are for design information, which will vary with supply voltage, operating temperature and after soldering.
AH289 Rev. 11
DS31052
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AH289
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
24
OFF
OP
20
16
12
8
4
RP
ON
VSAT
Bop
Brp
Magnetic Flux Density in Gauss
0
Bop
Magnetic Flux Density in Gauss
S
Marking
side
N
( SOT89-5L )
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AH289
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
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
P D (mW )
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)
Marking Information
(1) SOT89-5L
( Top View )
4
7
5
289 Y W X
1
AH289 Rev. 11
DS31052
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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AH289
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Package Information
(All Dimensions in mm)
(1) Package type: SOT89-5L
Sensor Location
AH289 Rev. 11
DS31052
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AH289
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:
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Copyright © 2010, Diodes Incorporated
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