PRM48DH480T250A03 Datasheet, PDF (9/23 Pages) Vicor Corporation – Building block for high efficiency DC-DC systems

PRM48DH480T250A03
6.0 APPLICATIONS CHARACTERISTICS
The following figures present typical performance at T_C = 25ºC, unless otherwise noted. See associated figures for general
trend data.
No Load Power Dissipation vs. Line
Module Enabled - Nominal V_OUT
4.0
3.0
2.0
1.0
38 40 42 44 46 48 50 52 54 56 58 60
T_CASE:
Input Voltage [V]
-40 ºC
25 ºC
100 ºC
Figure 1 - No load power dissipation vs. VIN, module
enabled
Efficiency & Power Dissipation
V_OUT = 20 V T_CASE = -40 ºC
96
14
94
92
12
90
88
10
86
84
8
82
80
6
78
76
4
74
72
2
70
68
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
Load Current [A]
V_IN:
38
48
60
38
48
60
Figure 3 – Total efficiency and power dissipation vs. VIN and
IOUT, VOUT = 20V, TCASE = -40ºC
Power Dissipation vs. Line
Module Disabled, PC=Low
0.4
0.3
0.2
0.1
38 40 42 44 46 48 50 52 54 56 58 60
T_CASE:
Input Voltage [V]
-40 ºC
25 ºC
100 ºC
Figure 2 - Power dissipation vs. VIN, module disabled
Efficiency & Power Dissipation
V_OUT = 48 V T_CASE = -40 ºC
98
16
96
94
14
92
90
12
88
86
10
84
82
8
80
78
6
76
74
4
72
70
2
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
Load Current [A]
V_IN:
38
48
60
38
48
60
Figure 4 – Total efficiency and power dissipation vs. VIN and
IOUT, VOUT = 48V, TCASE = -40ºC
PRM^® Regulator  
 
Rev 1.4  
 
vicorpower.com  
Page 9 of 23  
 
 
12/2012    
 
800 735.6200