Not Recommended for New Designs
B048x096y24A
5.0 APPLICATION CHARACTERISTICS
The following values, typical of an application environment, are collected at TC = 25ºC unless otherwise noted. See associated figures
for general trend data.
Full Load Efficiency vs.TCASE
No Load Power Dissipation vs. Line
98
11
10
9
8
7
96
6
5
4
3
2
94
1
38
40
TCASE
42
:
44
Input Voltage (V)
25 °C
46
47
49
51
53
55
-40
-20
V
0
20
Case Temperature (°C)
38 V 48 V
40
60
80
55 V
100
-40 °C
100 °C
:
IN
Figure 2 — No load power dissipation vs. VIN
Figure 3 — Full load efficiency vs. temperature; VIN
Efficiency & Power Dissipation -40°C Case
Efficiency & Power Dissipation 25°C Case
96
92
88
84
80
76
72
68
64
60
32
28
24
20
16
12
8
98
95
92
89
86
83
80
77
74
21
18
15
12
9
PD
PD
6
3
4
0
0
0
2.5
5
7.5
10 12.5 15 17.5 20 22.5 25
Load Current (A)
0
2.5
5
7.5
10 12.5 15 17.5 20 22.5 25
Load Current (A)
38 V
48 V
55 V
38 V
48 V
55 V
38 V
48 V
55 V
38 V
48 V
55 V
VIN:
VIN:
Figure 4 — Efficiency and power dissipation at TC = -40°C
Figure 5 — Efficiency and power dissipation at TC = 25°C
Efficiency & Power Dissipation 100°C Case
ROUT vs.TCASE at VIN = 48 V
10.0
98
24
21
18
15
12
9
96
94
92
90
88
9.0
8.0
7.0
6.0
5.0
4.0
PD
86
6
84
82
3
0
0
2.5
5
7.5
10 12.5 15 17.5 20 22.5 25
Load Current (A)
-40
-20
0
20
40
60
80
100
Case Temperature (°C)
38 V
48 V
55 V
38 V
48 V
55 V
VIN
:
Full Load
Figure 6 — Efficiency and power dissipation at TC = 100°C
Figure 7 — ROUT vs. temperature
BCM® Bus Converter
Page 6 of 18
Rev 1.1
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08/2014
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