BCM384x120y1K5ACz
1800
1600
1400
1200
1000
800
600
400
200
0
35
45
55
65
75
85
95
105 115 125
Case Temperature (°C)
Top only at temperature
Leads at temperature
Top and leads at
temperature
Top, leads, & belly at
temperature
Figure 1 — Specified thermal operating area
185
170
155
140
125
110
95
2100
1950
1800
1650
1500
1350
1200
1050
900
80
65
750
260 275 290 305 320 335 350 365 380 395 410
260 275 290 305 320 335 350 365 380 395 410
Primary Input Voltage (V)
Primary Input Voltage (V)
ISEC_OUT_DC
ISEC_OUT_PULSE
PSEC_OUT_DC
PSEC_OUT_PULSE
Figure 2 — Specified electrical operating area using rated RSEC_HOT
110
100
90
80
70
60
50
40
30
20
10
0
0
10 20 30 40 50 60 70 80 90 100 110
Secondary Output Current (% ISEC_OUT_DC
)
Figure 3 — Specified Primary start-up into load current and external capacitance
BCM® Bus Converter
Page 9 of 25
Rev 1.5
07/2015
vicorpower.com
800 927.9474
VICOR [ VICOR CORPORATION ]
