TOP242R POWERINT [Power Integrations, Inc.], TOP242R Datasheet - Page 33

• Manufacturer Part Number: TOP242R
• Description: TOPSwitch -GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher
• Manufacturer: POWERINT [Power Integrations, Inc.]

Figure 49. Layout Considerations for TOPSwitch-GX using R Package.
TOP VIEW
the part-to-part variation of the R
as 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
under test and the worst case maximum specification.
Solder Side
Component Side
HV
+
-
R1a - 1c
TOPSwitch-GX
DS(ON)
DS(ON)
of TOPSwitch-GX
of the device
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
Maximize hatched copper
areas(
heat sinking
Output Filter Capacitors
TOP242-250
) for optimum
- DC
PI-2734-043001
1/02
Out
G
+
33