PRM48JY480X500A00 Datasheet, PDF (27/46 Pages) Vicor Corporation – Regulator for Post PFC Operation

PRM48Jy480x500A00
Typical Performance Characteristics (cont.)
The following figures present typical performance at T_C = 25ºC, unless otherwise noted. See associated figures for general trend data.
DC Modulator Gain and Powertrain Equivalent
Resistance vs. Output Current - V_OUT = 20 V
16
40
14
G_CN
35
12
(dB)
30
10
25
8
20
6
15
4
R_eq
10
2
(Ω)
5
0
0
0 1 2 3 4 5 6 7 8 9 10 11
Load Current (A)
V_IN: 38 V
V_IN: 48 V
V_IN: 55 V
Figure 18 — Powertrain Characteristics vs. I_OUT, V_IN
Resistive Load, V_OUT = 20.0 V
Powertrain Equivalent Input
Resistance vs. Output Current - V_OUT = 20 V
30
25
20
15
10
5
0
0 1 2 3 4 5 6 7 8 9 10 11
Load Current (A)
V_IN: 38 V
V_IN: 48 V
V_IN: 55 V
Figure 21 — Magnitude of powertrain dynamic input impedance vs. I_OUT;
V_IN; V_OUT = 20.0 V
DC Modulator Gain and Powertrain Equivalent
14
Resistance
vs.
Output
Current
-
V_OUT
=
48
V
200
12
180
10
G_CN
(dB)
160
8
140
6
120
4
100
2
80
0
60
-2
R_eq
40
-4
(Ω) 20
-6
0
0 1 2 3 4 5 6 7 8 9 10 11
Load Current (A)
V_IN: 38 V
V_IN: 48 V
V_IN: 55 V
Figure 19 — Powertrain Characteristics vs. I_OUT, V_IN Resistive Load,
V_OUT = 48.0 V
Powertrain Equivalent Input
14 ^{Resistance vs. Output Current - VOUT = 48 V}
12
10
8
6
4
2
0
0 1 2 3 4 5 6 7 8 9 10 11
Load Current (A)
V_IN: 38 V
V_IN: 48 V
V_IN: 55 V
Figure 22 — Magnitude of powertrain dynamic input impedance vs. I_OUT;
V_IN; V_OUT = 48.0 V
DC Modulator Gain and Powertrain Equivalent
12
Resistance
vs.
Output
Current
-
V_OUT
=
55
V
200
10
G_CN
180
8
(dB)
160
6
140
4
120
2
100
0
80
-2
60
-4
R_eq
40
-6
(Ω)
20
-8
0
0 1 2 3 4 5 6 7 8 9 10 11
Load Current (A)
V_IN: 38 V
V_IN: 48 V
V_IN: 55 V
Figure 20 — Powertrain Characteristics vs. I_OUT, V_IN Resistive Load,
V_OUT = 55.0 V
PRM^TM Regulator
Page 27 of 46
Rev 1.2
11/2015
Powertrain Equivalent Input
10 ^{Resistance vs. Output Current - VOUT = 55 V}
8
6
4
2
0
0 1 2 3 4 5 6 7 8 9 10 11
Load Current (A)
V_IN: 38 V
V_IN: 48 V
V_IN: 55 V
Figure 23 — Magnitude of powertrain dynamic input impedance vs. I_OUT;
V_IN; V_OUT = 55.0 V
vicorpower.com
800 927.9474