PRD48BF480T600A00 Datasheet, PDF (11/22 Pages) Vicor Corporation – PRM® Regulator Remote Sense Only

Efficiency & Power Dissipation
V_OUT = 55 V T_CASE = 100 ºC
98
32
97
28
96
24
95
20
94
16
93
12
92
8
91
4
90
0
V_IN:
12
38
0
3 4 5 6 7 8 9 10 11 12
Load Current [A]
45
55
38
45
55
Figure 11 – Total efficiency and power dissipation vs. V_IN
and I_OUT, V_OUT=55V, T_CASE=100ºC
Figure 13 – Typical output voltage ripple waveform,
T_CASE= 30ºC, V_IN=45V, V_OUT=48V, I_OUT=12.5A, no external
capacitance.
Powertrain switching frequency and periodic
input charge vs. input voltage, Full load
1025
1000
36
f_sw
32
975
28
950
24
925
20
900
16
875
12
850
C
8
825
4
800
0
38 40 42 44 46 48 50 52 54 56
Input Voltage [V]
V_OUT:
55
20
48
55
20
48
Figure 15 – Powertrain switching frequency and periodic
input charge vs. V_IN, V_OUT; I_OUT=12.5A
PRM48Bx480y600A00
V_PR vs. Case Temperature
V_IN = 45 V; V_OUT = 48 V
6.5
6 _6.13
5.5
6.09
5.82
5
4.5
4.52
4
-40 -20
I_OUT:
4.49
0
20
40
Temperature [ºC]
6.25
60
80
12.5
4.21
100
Figure 12 – Typical control node voltage vs. T_CASE, I_OUT;
V_IN=45V, V_OUT=48V
Powertrain switching frequency and periodic
output charge vs. input voltage, Full load
1025
1000
36
f_sw
32
975
28
950
24
925
20
900
C
16
875
12
850
8
825
4
800
0
38 40 42 44 46 48 50 52 54 56
V_OUT
Input Voltage [V]
55
20
48
55
20
48
Figure 14 – Powertrain switching frequency and periodic
output charge vs. V_IN, V_OUT; I_OUT=12.5A
DC Safe Operating Area
14
700
12
600
10
500
8
400
6
300
4
200
2
100
0
0
5 10 15 20 25 30 35 40 45 50 55 60
Output Voltage [V]
Current
Power
Figure 16 – DC Output Safe Operating Area
PRM® Regulator
Page 11 of 22
Rev 1.2
07/2015
vicorpower.com
800 927.9474