Not Recommended for New Designs
Electrical Specifications (continued)
Efficiency Charts
P048F048T12AL
98
94
90
86
82
78
74
70
Efficiency & Power Dissipation -40° Case
P D
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0.0
98
94
90
86
82
78
74
70
Efficiency & Power Dissipation 25° Case
P D
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0.0
0.0
0.3
0.5
0.8
1.0
1.3
1.5
1.8
2.0
2.3
2.5
0.0
0.3
0.5
0.8
1.0
1.3
1.5
1.8
2.0
2.3
2.5
Load Current (A)
Load Current (A)
V IN :
36 V
48 V
75 V
36 V
48 V
75 V
V IN :
36 V
48 V
75 V
36 V
48 V
75 V
Figure 6 — Efficiency and power dissapation vs. output current at 36 V OUT, ,
-40 °C T CASE
Figure 7 — Efficiency and power dissapation vs. output current at 36 V OUT ,
25 °C T CASE
98
94
Efficiency & Power Dissipation 100° Case
17.5
15.0
4.0
3.5
No Load Power Dissipation vs. Line
90
12.5
86
82
78
74
P D
10.0
7.5
5.0
2.5
3.0
2.5
2.0
70
0.0
0.3
0.5
0.8
1.0
1.3
1.5
1.8
2.0
2.3
0.0
2.5
1.5
36
39
42
45
48
51
54
57
60
63
66
69
72
75
Load Current (A)
Input Voltage (V)
V IN :
36 V
48 V
75 V
36 V
48 V
75 V
T CASE :
-55 °C
25 °C
100 °C
Figure 8 — Efficiency and power dissapation vs. output current at 36 V OUT ,
100 °C T CASE
Figure 9 — No load power, unit enabled vs. line
96
95
94
93
92
91
Full Load Efficiency vs. T CASE
-55
-40
-25
-10
5
20
35
50
65
80
95
Case Temperature (°C)
V IN
:
36 V
48 V
75 V
Figure 10 — Full load efficiency vs T CASE
PRM ? Regulator
Page 5 of 14
Rev 3.1
12/2013
vicorpower.com
800 735.6200
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