B048X320Y30A Datasheet, PDF (6/18 Pages) Vicor Corporation – Unregulated DC-DC Converter

Not Recommended for New Designs
B048x320y30A
5.0 APPLICATION CHARACTERISTICS
The following values, typical of an application environment, are collected at T_C = 25ºC unless otherwise noted. See associated figures
for general trend data.
No Load Power Dissipation vs. Line
9
8
7
6
5
4
3
2
1
38 40 42 44 46 47 49 51 53 55
Input Voltage (V)
-40°C
25°C
100°C
Full Load Efficiency vs. T_CASE
98
96
94
-40
-20
0
20
40
60
Case Temperature (°C)
80
100
V_IN :
38 V
48 V
55 V
Figure 2 — No load power dissipation vs. V_IN
Figure 3 — Full load efficiency vs. temperature; V_IN
Efficiency & Power Dissipation -40°C Case
98
27
96
24
94
21
92
18
90
15
88
12
86
9
84
6
82
P_D
3
80
0
0 1 2 3 4 5 6 7 8 9 10
Load Current (A)
V_IN:
38 V
48 V
55 V
38 V
48 V
55 V
Figure 4 — Efficiency and power dissipation at T_C = -40°C
Efficiency & Power Dissipation 25°C Case
98
27
96
24
94
21
92
18
90
15
88
12
86
9
84
6
82
P_D
3
80
0
0 1 2 3 4 5 6 7 8 9 10
Load Current (A)
V_IN:
38 V
48 V
55 V
38 V
48 V
55 V
Figure 5 — Efficiency and power dissipation at T_C = 25°C
Efficiency & Power Dissipation 100°C Case
98
27
96
24
94
21
92
18
90
15
88
12
86
9
84
6
82
P_D
3
80
0
0 1 2 3 4 5 6 7 8 9 10
Load Current (A)
V_IN:
38 V
48 V
55 V
38 V
48 V
55 V
Figure 6 — Efficiency and power dissipation at T_C = 100°C
R_OUT vs. T_CASE at V_IN = 48 V
140
120
100
80
60
40
-40
-20
0
20
40
60
Case Temperature (°C)
Full Load
80
100
Figure 7 — R_OUT vs. temperature
BCM^® Bus Converter
Page 6 of 18
Rev 1.0
01/2014
vicorpower.com
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