B048X096Y24A Datasheet, PDF (6/18 Pages) Vicor Corporation – Unregulated DC-DC Converter

Not Recommended for New Designs
B048x096y24A
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
11
10
9
8
7
6
5
4
3
2
1
38 40 42 44 46 47 49 51 53 55
Input Voltage (V)
T_CASE:
-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
96
32
92
28
88
24
84
20
80
76
P_D
16
72
12
68
8
64
4
60
0
0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25
Load Current (A)
V_IN:
38 V
48 V
55 V
38 V
48 V
55 V
Efficiency & Power Dissipation 25°C Case
98
21
95
18
92
15
89
12
86
P_D
9
83
80
6
77
3
74
0 2.5
V_IN:
38 V
0
5 7.5 10 12.5 15 17.5 20 22.5 25
Load Current (A)
48 V
55 V
38 V
48 V
55 V
Figure 4 — Efficiency and power dissipation at T_C = -40°C
Figure 5 — Efficiency and power dissipation at T_C = 25°C
Efficiency & Power Dissipation 100°C Case
98
24
96
21
94
18
92
15
90
12
88
9
86
P_D
6
84
3
82
0
0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25
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
10.0
9.0
8.0
7.0
6.0
5.0
4.0
-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 1.1
08/2014
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