AH286-WL-7 [DIODES]
Brushless DC Motor Controller, 0.7A, PDSO5, LEAD FREE, SOT-25, 5 PIN;
| 型号： | AH286-WL-7 |
| 厂家： | 
DIODES INCORPORATED |
| 描述： | Brushless DC Motor Controller, 0.7A, PDSO5, LEAD FREE, SOT-25, 5 PIN 电动机控制 输入元件 光电二极管 |
| 文件： | 总10页 (文件大小：294K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PART OBSOLETE – NO ALTERNATE PART
AH286
HALL-EFFECT SMART FAN MOTOR CONTROLLER
Description
Pin Assignments
The AH286 is a single-chip solution for driving two-coil brushless
direct current (BLDC) fans and motors. The device includes a Hall-
effect sensor, dynamic offset correction and two complementary
open-drain output drivers with internal Zener diode protection.
(Top View)
Vdd
1
2
RD
5
286
GND
To help protect the motor coils, the AH286 provides Rotor Lock
Protection which shuts down output drives if rotor lock is detected.
The device automatically re-starts when the rotor lock is removed. A
Rotor-lock Detect (RD) output flag allows external monitoring of any
motor locks.
DO 3
4 DOB
SO9-5
The AH286 is available in SOT89-5 package.
Application
Features
•
•
Two-l BLDC Cooling Fans
Loo Medium Voltage, Low PoweBLDC Motors
•
•
•
•
•
Single-chip Solution
Operating Voltage: 3.8V to 20V
Built-in Hall Sensor and Input Amplifier
Rotor-lock Detect (RD) Flag
Rotor Lock Protection (Lock detection, output shutdown and
automatic re-start)
•
•
•
•
•
•
Built-in Zener Protection For Output Driver
Average output current up to 500mA
Packaged in SOT89-5
Green Molding Compound
Totally Lead-Free & Fully RoHS Compliant (Not
Halogen and Antimony Free. “Green” Device (
Notes:
1. No purposely added lead. Fully EDirectie 2002/9565/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quy/lead_free.html for moabout Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "een” produe ned as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compound
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© Diodes Incorporated
AH286
Document number: DS31030 Rev. 13 - 4
PART OBSOLETE – NO ALTERNATE PART
AH286
Typical Application Circuit (Note 4)
D2
Vdd
(12V)
Rpu
D1
5
1
4
3
Coil2
RD
286
Coil1
2
D3
C3
R1
C1
R2
C2
GND
12V DC Brush-Less Fan with RD Output Function
Notes: 4. Typically it is recommended to us a 56 Ohm resistor for R1 and R2 and a 2.2μF E-Cap capacitor for C1, C2 and C3. These values may need to be
optimized depending on the coils used.
To help with IC protection it’s advised to add a Zener diode between Vdd and ground. The Zener diode should be chosen to help prevent the supply voltage
exceeding the maximum rating of the device.
Pin Descriptions
Pin Name
Description
RD
Vdd
DO
Rotor-state detection
Input power
Output pin
DOB
GND
Output pin
Ground
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© Diodes Incorporated
AH286
Document number: DS31030 Rev. 13 - 4
PART OBSOLETE – NO ALTERNATE PART
AH286
Functional Block Diagram
Vdd
Lock detect,
shutdown and
automatic re-start
Regulator
DO
Hall
Plate
Control Logic
Amp.
DOB
GND
RD
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© Diodes Incorporated
AH286
Document number: DS31030 Rev. 13 - 4
PART OBSOLETE – NO ALTERNATE PART
AH286
Absolute Maximum Ratings (T = +25°C )
A
Symbol
Characteristics
Rating
Unit
Vdd
Supply Voltage
Output Current
24
500
V
mA
mA
mW
C
IO (AVE)
IO
IO (PEAK)
700
Power Dissipation
800
PD
Storage Temperature
-55 to +150
+150
TST
Maximum Junction Temperature
Thermal Resistance Junction to Case (Note 5)
C
TJ
156
C/W
θJA
TA
TJ
Tc
JA
JC
Note: 5. θJA should be confirmed with heat sink thermal resistance. If there is no heat sink contact, θJA will almost be the same as θJC
.
Recommended Operating Conditions
Symbol
Characteristic
Conditions
Min
Max
Unit
Vdd
TA
Supply Voltage
Operating Ambient Temperature
Operating
Operating
3.8
-40
20
V
+100
C
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© Diodes Incorporated
AH286
Document number: DS31030 Rev. 13 - 4
PART OBSOLETE – NO ALTERNATE PART
AH286
Electrical Characteristics (TA = +25°C, VDD = 12V, unless otherwise specified.)
Symbol
Characteristics
Supply Current
Conditions
Min
Typ.
Max
Unit
Idd
IOFF
Operating
VOUT = 24V
-
-
-
2.0
< 0.1
0.5
4.0
10
mA
μA
Output Leakage Current
Rotor Lock Protection On Time
0.4
0.6
Sec
tRLP-ON
Rotor Lock Protection Off Time
-
2.4
3
3.6
500
900
1.67
-
Sec
tRLP-OFF
-
-
375
625
1.25
0.5
42
IO = 300mA
IO = 500mA
IO = 300mA
IO = 10mA
-
Output Saturation Voltage
mV
VOUT(SAT)
Output On Resistance
RD Output Vds
-
V
RDS(ON)
VOL
-
Vz
Output Zener-Breakdown Voltage
35
60
V
Truth Table (Note 6)
IN-
IN+
CT
OUT1
OUT2
RD
Mode
H
L
-
L
H
-
L
L
H
H
L
Off
L
H
Off
L
L
H
Rotating
Rotating
Lockup protection activated
Note: 6. Latch-type RD output is low during rotor rotation and high when the rotor is locked (not rotating).
Magnetic Characteristics (TA = +25°C, VDD = 12V, unless otherwise specified, Note 7)
(1mT = 10 Gauss)
Symbol
Characteristics
Min
Typ.
Max
Unit
Bop
Brp
Bhy
Operate Point
Release Point
Hysteresis
10
-60
-
30
-30
60
60
-10
-
Gauss
Gauss
Gauss
Note: 7. The magnetic characteristics may vary with supply voltage, operating temperature and after soldering.
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© Diodes Incorporated
AH286
Document number: DS31030 Rev. 13 - 4
PART OBSOLETE – NO ALTERNATE PART
AH286
Operating Characteristics
DOB
DO
12
10
8
12
10
8
RP
ON
OFF
OP
OFF
OP
ON
6
6
4
4
2
2
RP
Vsat
Vsat
Brp
0
Bop
Brp
0
Bop
Magnetic Flux Density in Gauss
Magnetic Flux Density in Gauss
S
N
Marking
side
( SOT89-5 )
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AH286
Document number: DS31030 Rev. 13 - 4
PART OBSOLETE – NO ALTERNATE PART
AH286
Performance Characteristics
25
50
60
70
75
80
85
416
135
96
90
384
140
64
95
352
145
32
100
320
150
0
TA (C)
PD (mW)
TA (C)
800
105
288
640
110
256
576
115
224
512
120
192
480
125
160
448
130
128
PD (mW)
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© Diodes Incorporated
AH286
Document number: DS31030 Rev. 13 - 4
PART OBSOLETE – NO ALTERNATE PART
AH286
Ordering Information
AH 286 - Y G - 13
Package
Green
Packing
Y : SOT89-5
G : Green
13 : Tape & Reel
Bulk
13” ape and Reel
Package
Packaging
(Note 8, 9)
Device
Code
Part Number
Quantity
Quantity
Pt Number Suffix
Suffix
AH286-YG-13
Y
SOT89-5
NA
NA
2500/Te & Reel
-13
Notes: 8. Pad layout as shown on Diodes Incorporated’s suggested pad layout document, which can be founour website at
http://www.diodes.com/package-outlines.html.
9. Reverse taping as shown on Diodes Incorporated’s Surface Mount (SMD) Packaging documenP02007, ich can be found o
website http://www.diodes.com/datasheets/ap02007.pdf.
Marking Information
(Top View)
5
1
4
Y : Year : 0~9
W Week : A~: 1~26 week;
~z : 272 week;
286
z eprents 52 and 53 week
X : Inteal code
A~Z : Green
SOT89-5
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AH286
Document number: DS31030 Rev. 13 - 4
PART OBSOLETE – NO ALTERNATE PART
AH286
Package Outline Dimensions (All Dimensions in mm)
r Location
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AH286
Document number: DS31030 Rev. 13 - 4
PART OBSOLETE – NO ALTERNATE PART
AH286
IMPORTANT NOTICE
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
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without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume
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website, harmless against all damages.
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This document is written in English but may be translated into multiple languages for refence. Only the glish version of this document is the
final and determinative format released by Diodes Incorporated.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical comnents life support devices or systems 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 ten prorly used accordance with instructions for use provided in the
labeling can be reasonably expected to rejury to e us
B. A critical component is any component in a life supwhose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safet
Customers represent that they have all nssarexpertisd regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are sly responsible for all tory and safety-related requirements concerning their products and any
use of Diodes Incorporated products such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be pvided by odes corporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arisof the use Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2017, Diodes d
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© Diodes Incorporated
AH286
Document number: DS31030 Rev. 13 - 4
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