NOT RECOMMENDED FOR NEW DESIGN –
AH289
NO ALTERNATE PART
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
4
5
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. 12-3
DS31052
1 of 9
www.diodes.com
January 2021
© Diodes Incorporated
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. 12 - 3
DS31052
Description
2 of 9
www.diodes.com
February 2021
© Diodes Incorporated
AH289
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Block Diagram
Vdd
Lock shutdown
and
Automatic recovery
Regulator
DO
Hall
Plate
Control Logic
Amp.
GND
AH289 Rev. 12 - 3
DS31052
3 of 9
www.diodes.com
DOB
RD
February 2021
© Diodes Incorporated
AH289
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Absolute Maximum Ratings
Symbol
Parameter
Vdd
Supply Voltage
IO
Output Current
PD
TST
TJ
θJA
(TA = 25°C)
IO (AVE)
IO (PEAK)
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. 12 - 3
DS31052
Characteristic
4 of 9
www.diodes.com
February 2021
© Diodes Incorporated
AH289
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Electrical Characteristics
Symbol
(TA = 25 °C, Vdd = 24V, unless otherwise specified)
Parameter
Conditions
Min
Typ.
Max
Unit
Idd
Supply Current
Operating
-
2.0
4.0
mA
IOFF
Output Leakage Current
VOUT = 24V
-
< 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
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. 12 - 3
DS31052
5 of 9
www.diodes.com
February 2021
© Diodes Incorporated
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 )
AH289 Rev. 12 - 3
DS31052
6 of 9
www.diodes.com
February 2021
© Diodes Incorporated
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
PD (mW)
Power Dissipation Curve
900
800
700
600
500
400
300
200
100
0
-40
0
25
50
75
100
125
150
TA (°C)
Marking Information
(1) SOT89-5L
( Top View )
5
7
4
289 Y W X
1
AH289 Rev. 12 - 3
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
7 of 9
www.diodes.com
February 2021
© Diodes Incorporated
AH289
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
Package Information
(All Dimensions in mm)
(1) Package type: SOT89-5L
Sensor Location
AH289 Rev. 12 - 3
DS31052
8 of 9
www.diodes.com
February 2021
© Diodes Incorporated
AH289
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR
CONTROLLER
IMPORTANT NOTICE
1.
DIODES INCORPORATED AND ITS SUBSIDIARIES (“DIODES”) MAKE NO WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, WITH REGARDS TO ANY INFORMATION CONTAINED IN THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF
THIRD PARTY INTELLECTUAL PROPERTY RIGHTS (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY
JURISDICTION).
2.
The Information contained herein is for informational purpose only and is provided only to illustrate the operation of
Diodes products described herein and application examples. Diodes does not assume any liability arising out of the application or
use of this document or any product described herein. This document is intended for skilled and technically trained engineering
customers and users who design with Diodes products. Diodes products may be used to facilitate safety-related applications;
however, in all instances customers and users are responsible for (a) selecting the appropriate Diodes products for their
applications, (b) evaluating the suitability of the Diodes products for their intended applications, (c) ensuring their applications, which
incorporate Diodes products, comply the applicable legal and regulatory requirements as well as safety and functional-safety related
standards, and (d) ensuring they design with appropriate safeguards (including testing, validation, quality control techniques,
redundancy, malfunction prevention, and appropriate treatment for aging degradation) to minimize the risks associated with their
applications.
3.
Diodes assumes no liability for any application-related information, support, assistance or feedback that may be provided
by Diodes from time to time. Any customer or user of this document or products described herein will assume all risks and liabilities
associated with such use, and will hold Diodes and all companies whose products are represented herein or on Diodes’ websites,
harmless against all damages and liabilities.
4.
Products described herein may be covered by one or more United States, international or foreign patents and pending
patent applications. Product names and markings noted herein may also be covered by one or more United States, international or
foreign trademarks and trademark applications. Diodes does not convey any license under any of its intellectual property rights or
the rights of any third parties (including third parties whose products and services may be described in this document or on Diodes’
website) under this document.
5.
Diodes
products
are
provided
subject
to
Diodes’
Standard
Terms
and
Conditions
of
Sale
(https://www.diodes.com/about/company/terms-and-conditions/terms-and-conditions-of-sales/) or other applicable terms. This
document does not alter or expand the applicable warranties provided by Diodes. Diodes does not warrant or accept any liability
whatsoever in respect of any products purchased through unauthorized sales channel.
6.
Diodes products and technology may not be used for or incorporated into any products or systems whose manufacture,
use or sale is prohibited under any applicable laws and regulations. Should customers or users use Diodes products in
contravention of any applicable laws or regulations, or for any unintended or unauthorized application, customers and users will (a)
be solely responsible for any damages, losses or penalties arising in connection therewith or as a result thereof, and (b) indemnify
and hold Diodes and its representatives and agents harmless against any and all claims, damages, expenses, and attorney fees
arising out of, directly or indirectly, any claim relating to any noncompliance with the applicable laws and regulations, as well as any
unintended or unauthorized application.
7.
While efforts have been made to ensure the information contained in this document is accurate, complete and current, it
may contain technical inaccuracies, omissions and typographical errors. Diodes does not warrant that information contained in this
document is error-free and Diodes is under no obligation to update or otherwise correct this information. Notwithstanding the
foregoing, Diodes reserves the right to make modifications, enhancements, improvements, corrections or other changes without
further notice to this document and any product described herein. This document is written in English but may be translated into
multiple languages for reference. Only the English version of this document is the final and determinative format released by Diodes.
8.
Any unauthorized copying, modification, distribution, transmission, display or other use of this document (or any portion
hereof) is prohibited. Diodes assumes no responsibility for any losses incurred by the customers or users or any third parties arising
from any such unauthorized use.
Copyright © 2021 Diodes Incorporated
www.diodes.com
AH289 Rev. 12 - 3
DS31052
9 of 9
www.diodes.com
February 2021
© Diodes Incorporated