LA6581MC-DH [ONSEMI]
Single-Phase Full-Wave BTL Fan Motor Driver, SOIC-8 Narrow Body, 2500-REEL;
| 型号： | LA6581MC-DH |
| 厂家： | 
ONSEMI |
| 描述： | Single-Phase Full-Wave BTL Fan Motor Driver, SOIC-8 Narrow Body, 2500-REEL 电动机控制 光电二极管 |
| 文件： | 总4页 (文件大小：59K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : ENA2028
LA6581MC
Monolithic Linear IC
Fan Motor Driver
BTL Driver Single-Phase
Full-Wave
http://onsemi.com
Overview
The LA6581MC is a low-saturation BTL output linear driving motor driver for single-phase bipolar fan motors. It
features quite, low power, high efficiency drive that suppresses reactive current. It is optimal for use in applications
that require miniaturization and low noise, such as CPU cooling fan motors and 5 to 12V electronic game products.
Functions
• Single-phase full-wave linear drive with BTL output (gain resistance 500Ω to 284kΩ, 55dB) : Suitable for the
equipment requiring silent operation, such as game equipment, CPU cooler, etc. because of its freedom from
switching noise.
• Low-voltage operation possible, with wide operable voltage range (3 to 16V)
• Low saturation output (Upper + lower saturation voltage : V sat (total) = 0.3V typ, I = 100mA) : High coil
O
O
efficiency with low current drain. IC itself does not generate much heat.
• High impedance of Hall input pin
• FG output (rotation speed detection output : open collector output)
• Heat protection circuit : When the large current flows because of output short-circuit, raising the IC chip
temperature above 180°C, the heat protection circuit suppresses the drive current, preventing IC burn and
breakdown.
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
max
Conditions
Ratings
Unit
V
Supply voltage
V
I
18
0.40
0.50
18
CC
OUT output current
1 max
2 max
max
A
OUT
I
T<200ms
A
OUT
OUT output withstand voltage
FG output withstand
V
V
I
V
OUT
max
18
V
FG
max
FG output current
5
mA
FG
Allowable power dissipation
Operating temperature
Storage temperature
Pd max
Topr
Mounted on a specified board *1
*2
750
mW
°C
-30 to +100
-55 to +150
Tstg
°C
*1: Specified board: 114.3mm × 76.1mm ×1.6mm, glass epoxy board
*2: Tj = 150°C max must not be exceeded.
Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time.
Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high
current, high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details.
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
Semiconductor Components Industries, LLC, 2013
May, 2013
42512 SY 20120222-S00005 No.A2028-1/4
LA6581MC
Recommended Operating Conditions at Ta = 25°C
Parameter
Supply voltage
Symbol
Conditions
Ratings
Unit
V
V
V
2.2 to 16
0.3 to V -1.5
CC
Common-phase input voltage range of
Hall input
V
ICM
CC
Electrical Characteristics at Ta = 25°C, V
= 12.0V, unless especially specified.
CC
Ratings
Typ
Parameter
Symbol
Conditions
Unit
min
Max
19
-
+
Circuit Current
I
IN = 5.8V, IN = 6.0V, R = ∞
14
mA
V
CC
L
OUT output low voltage
OUT output high voltage
Hall bias voltage
V
V
V
I
= 100mA
0.1
0.1
1.95
55
0.2
0.2
OL
O
O
I
= 100mA
V
OH
HB
RH = 360Ω +91Ω
1.85
2.05
58
V
Hall amplifier gain
Vg
52
dB
μA
V
Hall amplifier input current
FG output low voltage
FG output leakage current
Thermal protection circuit
V
-10
-2
+10
0.3
INR
FG
V
I
= 3mA
0.2
FG
I
V
= 7V
30
μA
°C
FGL
FG
* Design guarantee
Th
150
180
200
*: These values are design guarantee values, and are not tested.
Truth Table
-
+
IN
IN
OUT1
OUT2
FG
mode
H
L
-
L
H
-
H
L
L
H
L
Off
-
During rotation
Off
Off
During overheat protection
Package Dimensions
unit : mm (typ)
3424
4.9
Pd max -- Ta
1000
8
Spesified board: 114.3 76.1 1.6mm3
×
×
glass epoxy board.
800
750
600
400
200
0
1
2
1.27
0.42
0.2
300
-30
0
30
60
90
120
Ambient temperature, Ta -- C
SOIC8
No.A2028-2/4
LA6581MC
Pin Assignment
+
IN
1
2
3
4
8
7
6
5
FG
HB
V
CC
LA6581MC
OUT2
GND
OUT1
Top view
Block Diagram
V
CC
FG
2.0VRG
HB
+
-
IN
OUT1
OUT2
H
IN
GND
Timing Chart
Hall Signal
OUTPUT
Coil Current
FG Pulse
No.A2028-3/4
LA6581MC
Application Circuit Example
Di
Cr
*4
V
CC
*1
HB
R2
FG
HB
*3
LA6581MC
H
*2
H
OUT1
OUT2
+
IN
+
IN
*5
R1
R2
GND
Elements in substrate
*1 : When Di to prevent breakdown in case of reverse connection is used, it is necessary to insert a capacitor Cr to
secure the regenerative current route. Similarly, Cr is necessary to enhance the reliability when there is no
capacitor near the fan power line.
*2 : To obtain Hall bias from V , carry out 1/2 × V
bias as shown in the figure. Linear driving is made through
CC
CC
voltage control of the coil by amplifying the Hall output. When the Hall element output is large, the startup
performance and efficiency are improved. Adjustment of the Hall element can reduce the noise further.
*3 : When the Hall bias is taken from the HB pin, constant-voltage bias is made with about 2.0V. Therefore, the Hall
element can provide the output satisfactory in temperature characteristics. Adjustment of the Hall output
amplitude is made with R1. (When V
*4 : Keep this open when not used.
= 12V, the step *2 above proves advantageous for IC heat generation.)
CC
*5 : When the wiring from the Hall output to IC Hall input is long, noise may be carried through the wiring.
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of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at
www.onsemi.com/site/pdf/Patent-Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no
warranty, representation or guarantee regarding the suitabilityof its products for any particular purpose, nor does SCILLC assume any liability arising out of the
application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental
damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual
performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical
experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use
as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in
which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for
any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors
harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or
death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the
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No.A2028-4/4
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