NSI50350ADT4G

NSI50350ADT4G
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7
Thermal Considerations
As power in the CCR increases, it might become
necessary to provide some thermal relief. The maximum
power dissipation supported by the device is dependent
upon board design and layout. Mounting pad configuration
on the PCB, the board material, and the ambient temperature
affect the rate of junction temperature rise for the part. When
the device has good thermal conductivity through the PCB,
the junction temperature will be relatively low with high
power applications. The maximum dissipation the device
can handle is given by:
P
D(MAX)
+
T
J(MAX)
* T
A
R
qJA
Referring to the thermal table on page 2 the appropriate
R
q
JA
for the circuit board can be selected.
AC Applications
The CCR is a DC device; however, it can be used with full
wave rectified AC as shown in application notes
AND8433/D and AND8492/D and design notes
DN05013/D and DN06065/D. Figure 14 shows the basic
circuit configuration.
Figure 14. Basic AC Application
NSI50350ADT4G
http://onsemi.com
8
PACKAGE DIMENSIONS
DPAK (SINGLE GAUGE)
CASE 369C
ISSUE D
b
D
E
b3
L3
L4
b2
e
M
0.005 (0.13) C
c2
A
c
C
Z
DIM MIN MAX MIN MAX
MILLIMETERSINCHES
D 0.235 0.245 5.97 6.22
E 0.250 0.265 6.35 6.73
A 0.086 0.094 2.18 2.38
b 0.025 0.035 0.63 0.89
c2 0.018 0.024 0.46 0.61
b2 0.030 0.045 0.76 1.14
c 0.018 0.024 0.46 0.61
e 0.090 BSC 2.29 BSC
b3 0.180 0.215 4.57 5.46
L4 −− 0.040 −− 1.01
L 0.055 0.070 1.40 1.78
L3 0.035 0.050 0.89 1.27
Z 0.155 −−− 3.93 −−
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME
Y14.5M, 1994.
2. CONTROLLING DIMENSION: INCHES.
3. THERMAL PAD CONTOUR OPTIONAL WITHIN DI-
MENSIONS b3, L3 and Z.
4. DIMENSIONS D AND E DO NOT INCLUDE MOLD
FLASH, PROTRUSIONS, OR BURRS. MOLD
FLASH, PROTRUSIONS, OR GATE BURRS SHALL
NOT EXCEED 0.006 INCHES PER SIDE.
5. DIMENSIONS D AND E ARE DETERMINED AT THE
OUTERMOST EXTREMES OF THE PLASTIC BODY.
6. DATUMS A AND B ARE DETERMINED AT DATUM
PLANE H.
12 3
4
5.80
0.228
2.58
0.102
1.60
0.063
6.20
0.244
3.00
0.118
6.17
0.243
ǒ
mm
inches
Ǔ
SCALE 3:1
*For additional information on our Pb−Free strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
SOLDERING FOOTPRINT*
H 0.370 0.410 9.40 10.41
A1 0.000 0.005 0.00 0.13
L1 0.108 REF 2.74 REF
L2 0.020 BSC 0.51 BSC
A1
H
DETAIL A
SEATING
PLANE
A
B
C
L1
L
H
L2
GAUGE
PLANE
DETAIL A
ROTATED 90 CW5
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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
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NSI50350ADT4G

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Description:
LED Lighting Drivers DPAK 350MA
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