PRM48BH480T200B00 Datasheet, PDF (12/22 Pages) Vicor Corporation – High Efficiency Remote Sense PRM Converter

DC modulator gain and powertrain equivalent
output resistance vs. output current - V_OUT = 55V
4
490
2
420
Gpr
0
350
-2
280
-4
210
-6
140
-8
r_{eq_out}
70
-10
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
Output Current[A]
VIN:
38
45
55
38
45
55
Figure 17 – Powertrain characteristics vs. I_OUT;
Resistive load, V_OUT = 55 V, various V_IN
DC modulator gain and powertrain equivalent
output resistance vs. output current - V_OUT = 48V
6
210
4
180
2
150
Gpr
0
120
-2
90
-4
r_{eq_out}
60
-6
30
-8
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
Output Current[A]
VIN:
38
45
55
38
45
55
Figure 19 – Powertrain characteristics vs. I_OUT;
Resistive load, V_OUT = 48 V, various V_IN
Output Power vs. V_PR
V_IN = 45V, V_OUT = 48V, T_C=25ºC
200
180
Typical min
160
Nominal
140
Typical max
120
100
80
60
40
20
0
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0
PR Voltage [V]
Figure 21 – Output Power vs. V_PR; V_IN = 45 V, V_OUT = 48 V,
T_CASE = 25ºC
PRM48BH480T200B00
DC modulator gain and powertrain equivalent
output resistance vs. output current - V_OUT = 20V
8
49
6
42
4
Gpr
35
2
28
0
21
-2
r_{eq_out}
14
-4
7
-6
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
Output Current[A]
VIN:
38
45
55
38
45
55
Figure 18 – Powertrain characteristics vs. I_OUT;
Resistive load, V_OUT = 20 V, various V_IN
Effective internal input (C_{IN_INT}) and output
(C_{OUT_INT}) capacitance vs. applied voltage
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
0 5 10 15 20 25 30 35 40 45 50 55
Voltage [V]
Figure 20 – Effective internal input and output capacitance
vs. voltage – ceramic type
Powertrain equivalent input resistance
vs. output current - V_OUT = 55V
32
28
24
20
16
12
8
4
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5
Output Current [A]
VIN:
38
45
55
Figure 22 – Magnitude of powertrain dynamic input
impedance vs. V_IN, I_OUT; V_OUT = 55 V
PRM® Regulator
Page 12 of 22
Rev 1.1
7/2015
vicorpower.com
800 927. 9474