Vicor VI-J00 Family DC-DC Converters and Configurable Power Supplies - Manual (Page 60)

Design Guide & Applications Manual
For VI-200 and VI-J00 Family DC-DC Converters and Configurable Power Supplies
VI-200 and VI-J00 Family Design Guide Rev 3.5 vicorpower.com
Page 59 of 98
Apps. Eng. 800 927.9474 800 735.6200
NOTE 1: To ensure proper heat transfer from the internal
modules to the heat sink, the mounting holes through the
heat sink (three holes on 2-up models) must contain
torqued screws at all times during operation, whether or
not the unit is mounted. If the unit is operated
unmounted, insert a #6 or M3.5 panhead screw through
each hole from below and secure with a nut on top,
torqued to 6 in-lbs (0.7 N-m). NOTE 2: All PFC FlatPAC models are available with a
conduction cooled flat plate instead of the top heat sink.
Go to vicorpower.com for outline drawings. Refer to
Figure 19–4 for additional deratings for the -cc variants.
19. AC Input Power System (PFC FlatPAC)
0
100
200
300
400
500
600
20 25 30 35 40 45 50 55 60 65 70 75 80 85
Ambient Temperature (°C)
O
u
tp
u
t
P
o
w
e
r
(W
)
80
60
70
50
Cold Plate
Temp (°C)
300
350
400
450
500
550
600
85 110 135 160 185 210 235 260
Input Voltage (Vac)
O
u
tp
u
t
P
o
w
e
r
(W
a
tt
s
)
Figure 19–4 — Power de-rating conduction cooled option Figure 19–5 — Output power start-up de-rating @ –30° C
(I-Grade only). 5 minute warm up required before full power (see
Figure 19–1) is available.