PRM48BH480T200B00 Datasheet, PDF (11/22 Pages) Vicor Corporation – High Efficiency Remote Sense PRM Converter

98
96
94
92
90
88
86
84
82
80
78
76
74
72
70
0
VIN:
Efficiency & Power Dissipation
V_OUT = 55 V T_CASE = 100 ºC
0.5 1
38
1.5 2 2.5 3
Load Current [A]
45
55
38
3.5 4
45
16
14
12
10
8
6
4
2
4.5
55
Figure 11 – Total efficiency and power dissipation vs. V_IN
and I_OUT, V_OUT = 55 V, T_CASE = 100ºC
Figure 13 – Typical output voltage ripple waveform, T_CASE =
30ºC, V_IN = 45 V, V_OUT = 48 V, I_OUT = 4.17 A, no external
capacitance.
Powertrain switching frequency and periodic
input charge vs. input voltage - Full load
1025
1000
f_sw
18
16
975
14
950
12
925
10
900
8
875
850
6
µC
4
825
2
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 = 4.17 A
PRM48BH480T200B00
V_PR vs. Case Temperature
V_IN = 45 V; V_OUT = 48 V
6.5
6 _6.12
5.5
6.21
6.04
5
4.5 _4.57
4
-40 -20
4.62
0
20
40
60
Temperature [ºC]
4.47
80
100
I_OUT:
2.08
4.17
Figure 12 – Typical control node voltage vs. T_CASE, I_OUT; V_IN
= 45 V, V_OUT = 48 V
Powertrain switching frequency and periodic
output charge vs. input voltage - Full load
1025
1000
f_sw
18
16
975
14
950
12
925
10
900
8
875
6
850
µC
4
825
2
800
0
38 40 42 44 46 48 50 52 54 56
Input Voltage [V]
V_OUT
55
20
48
55
20
48
Figure 14 – Powertrain switching frequency and periodic
output charge vs. V_IN, V_OUT; I_OUT = 4.17 A
DC Safe Operating Area
5.21
200
4.17
160
3.13
120
2.08
80
1.04
40
0.00
5
0
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 1.1
7/2015
vicorpower.com
800 927. 9474