TOP242-249 POWERINT [Power Integrations, Inc.], TOP242-249 Datasheet - Page 33
TOP242-249
Manufacturer Part Number
TOP242-249
Description
Family Extended Power, Design Flexible,Integrated Off-line Switcher
Manufacturer
POWERINT [Power Integrations, Inc.]
Datasheet
1.TOP242-249.pdf
(48 pages)
- Current page: 33 of 48
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Figure 49. Layout Considerations for TOPSwitch-GX using R Package.
TOP VIEW
the part-to-part variation of the R
specified in the data sheet. The margin required can either
be calculated from the tolerances or it can be accounted for
by connecting an external resistance in series with the
DRAIN pin and attached to the same heatsink, having a
resistance value that is equal to the difference between the
measured R
maximum specification.
Solder Side
Component Side
DS(ON)
HV
+
-
of the device under test and the worst case
R1a - 1c
TOPSwitch-GX
DS(ON)
of TOPSwitch-GX as
X
Input Filter
D
L
Capacitor
C
S
Design Tools
Up to date information on design tools can be found at the
Power Integrations Web site: www.powerint.com
BIAS
PRI
PRI
Safety Spacing
Capacitor
coupler
Opto-
Y1-
m
T
a
n
s
o
e
r
r
r
f
SEC
August 8, 2000
Maximize hatched copper
areas(
heat sinking
Output Filter Capacitors
TOP242-249
) for optimum
- DC
PI-2734-043001
Out
7/01
E
+
33
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