NUD4011DR2

NUD4011
http://onsemi.com
7
TYPICAL APPLICATION CIRCUITS (continued)
Figure 9. 120 Vdc Application with PWM / Enable Function, 30 LEDs in Series (3.0 V, 20 mA)
R
ext
PWM
V
in
I
out
Current
Set Point
NUD4011
Boost
I
out
120 Vdc
I
out
I
out
1
2
3
4
8
7
6
5
L
ED1
L
ED2
L
ED30
+
Switch
35 , 1/4 W
+
1.0 k
PWM /
ENABLE
R
shunt
80 k, 1/4 W
Q1
200 V
Figure 10. 120 Vac Application with PWM / Enable Function, 30 LEDs in Series (3.0 V, 20 mA)
R
ext
PWM
V
in
I
out
Current
Set Point
NUD4011
Boost
I
out
I
out
I
out
1
2
3
4
8
7
6
5
L
ED1
L
ED2
L
ED30
35 , 1/4 W
Full
Bridge
Rectifier
VARISTOR
200 V
1
23
4
120 Vac 60 Hz
+
Switch
200 V
Electrolytic
Cap
+
1.0 k
PWM /
ENABLE
R
shunt
80 k, 1/4 W
Q1
200 V
NUD4011
http://onsemi.com
8
THERMAL INFORMATION
NUD4011 Power Dissipation
The power dissipation of the SO8 is a function of the pad
size. This can vary from the minimum pad size for soldering
to a pad size given for maximum power dissipation. Power
dissipation for a surface mount device is determined by
T
J(max)
, the maximum rated junction temperature of the die,
R
JA
, the thermal resistance from the device junction to
ambient, and the operating temperature, T
A
. Using the
values provided on the data sheet for the SO8 package, P
D
can be calculated as follows:
P
D
+
T
Jmax
* T
A
R
JA
The values for the equation are found in the maximum
ratings table on the data sheet. Substituting these values into
the equation for an ambient temperature T
A
of 25°C, one can
calculate the power dissipation of the device which in this
case is 1.13 W.
P
D
+
150°C * 25°C
110°C
+ 1.13 W
The 110°C/W for the SO8 package assumes the use of a
FR4 copper board with an area of 2 square inches with 2 oz
coverage to achieve a power dissipation of 1.13 W. There are
other alternatives to achieving higher dissipation from the
SOIC package. One of them is to increase the copper area to
reduce the thermal resistance. Figure 11 shows how the
thermal resistance changes for different copper areas.
Another alternative would be to use a ceramic substrate or
an aluminum core board such as Thermal Clad®. Using a
board material such as Thermal Clad or an aluminum core
board, the power dissipation can be even doubled using the
same footprint.
60
80
100
120
140
160
180
012345678910
BOARD AREA (in
2
)
JA (°C/W)
Figure 11. qJA versus Board Area
0
50
100
150
200
250
0.000001 0.00001 0.0001 0.001 0.01
0.1
1 10 100 1000
R() (C°/W)
TIME (sec)
1S 36.9 sq. mm 0.057 in sq.
1S 75.8 sq. mm 0.117 in sq.
1S 150.0 sq. mm 0.233 in sq.
1S 321.5 sq. mm 0.498 in sq.
1S 681.0 sq. mm 1.056 in sq.
1S 1255.0 sq. mm 1.945 in sq.
Figure 12. Transient Thermal Response
NUD4011
http://onsemi.com
9
PACKAGE DIMENSIONS
SOIC8 NB
CASE 75107
ISSUE AH
SEATING
PLANE
1
4
58
N
J
X 45
_
K
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ANSI Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSION A AND B DO NOT INCLUDE
MOLD PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006)
PER SIDE.
5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL
IN EXCESS OF THE D DIMENSION AT
MAXIMUM MATERIAL CONDITION.
6. 75101 THRU 75106 ARE OBSOLETE. NEW
STANDARD IS 75107.
A
B
S
D
H
C
0.10 (0.004)
DIM
A
MIN MAX MIN MAX
INCHES
4.80 5.00 0.189 0.197
MILLIMETERS
B 3.80 4.00 0.150 0.157
C 1.35 1.75 0.053 0.069
D 0.33 0.51 0.013 0.020
G 1.27 BSC 0.050 BSC
H 0.10 0.25 0.004 0.010
J 0.19 0.25 0.007 0.010
K 0.40 1.27 0.016 0.050
M 0 8 0 8
N 0.25 0.50 0.010 0.020
S 5.80 6.20 0.228 0.244
X
Y
G
M
Y
M
0.25 (0.010)
Z
Y
M
0.25 (0.010) Z
S
X
S
M
____
1.52
0.060
7.0
0.275
0.6
0.024
1.270
0.050
4.0
0.155
ǒ
mm
inches
Ǔ
SCALE 6:1
*For additional information on our PbFree strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
SOLDERING FOOTPRINT*
ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of 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 part. SCILLC is an Equal
Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
N. American Technical Support: 8002829855 Toll Free
USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81357733850
NUD4011/D
Thermal Clad is a registered trademark of the Bergquist Company.
LITERATURE FULFILLMENT:
Literature Distribution Center for ON Semiconductor
P.O. Box 5163, Denver, Colorado 80217 USA
Phone: 3036752175 or 8003443860 Toll Free USA/Canada
Fax: 3036752176 or 8003443867 Toll Free USA/Canada
Email: orderlit@onsemi.com
ON Semiconductor Website: www.onsemi.com
Order Literature: http://www.onsemi.com/orderlit
For additional information, please contact your local
Sales Representative

NUD4011DR2

Mfr. #:
Manufacturer:
ON Semiconductor
Description:
LED Lighting Drivers Low Current LED
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet