TOP232-234
Maximize hatched copper
areas (
heat sinking
) for optimum
Safety Spacing
Y1-
Capacitor
+
Output Filter Capacitor
J1
Input Filter Capacitor
HV
T
r
PRI
SEC
a
n
s
f
-
S
S
D
o
r
m
e
r
BIAS
TOPSwitch-FX
TOP VIEW
M
S
S
C
Opto-
coupler
R1
DC
Out
-
+
PI-2543-092199
Figure 29. Layout Considerations for TOPSwitch-FX using DIP or SMD (Using Line Sensing for Under-Voltage and Overvoltage).
Maximize hatched copper
Safety Spacing
areas (
) for optimum
heat sinking
Y1-
Capacitor
+
Output Filter Capacitor
J1
Input Filter Capacitor
HV
-
T
r
a
n
s
f
o
r
m
e
r
PRI
SEC
D
C
F
BIAS
S
R1
M
Heat Sink
R2
TOPSwitch-FX
TOP VIEW
Opto-
coupler
DC
Out
-
+
PI-2544-092199
Figure 30. Layout Considerations for TOPSwitch-FX using TO-220 Package (Using Current Limit Reduction with Line Voltage).
B
7/01
22
PAM [ POWER ANALOG MICOELECTRONICS ]
