PRM48BF480T400B00 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
10
250
8
Gpr
200
6
4
150
2
100
0
r_{eq_out}
50
-2
-4
0
0123456789
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
12
90
10
Gpr
80
70
8
60
6
50
4
40
30
2
r_{eq_out}
20
0
10
-2
0
0
1
2
3
4
5
6
7
8
9
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
400
360
320
280
240
200
160
120
80
40
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
PRM48BF480T400B00
DC modulator gain and powertrain equivalent
output resistance vs. output current - V_OUT = 20V
14
20
18
12
Gpr
16
10
14
12
8
10
8
6
4
r_{eq_out}
6
4
2
2
0
0
1
2
3
4
5
6
7
8
9
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
9
9
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
0
0
0 5 10 15 20 25 30 35 40 45 50 55
Voltage [V]
Cin
Cout
Figure 20 – Effective internal input and output
capacitance vs. voltage – ceramic type
Powertrain equivalent input resistance
vs. output current - V _OUT = 55V
16
14
12
10
8
6
4
2
0
0
1
2
3
4
5
6
7
8
9
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
Rev 1.1
800 927.9474