DC048B VICOR [Vicor Corporation], DC048B Datasheet - Page 16

• Manufacturer Part Number: DC048B
• Description: 48 V Input DC-DC Converter Modules
• Manufacturer: VICOR [Vicor Corporation]

28 Vout, 190 W OPERATING SPECIFICATIONS - (e.g. DC048B280T019FP)
Figure 13-1 – Efficiency vs. load
Figure 13-2 – Power dissipation vs. load
Figure 13-3 – Output ripple vs. load with no external bypass capacitance
VI Brick / 48V Input DC-DC Converter Modules
Parameter
Efficiency
Ripple and noise
Output OVP setpoint
Dissipation, standby
Load regulation
Output capacitance
Load current
Current limit (peak)
Short circuit current (avg)
120
100
80
60
40
20
95
90
85
80
75
70
65
20
18
16
14
12
10
0
8
6
4
0
0
0
Power Dissipation vs. Output Current
0.67 1.34 2.01 2.68 3.35 4.02 4.69 5.36 6.03 6.7
0.67 1.34 2.01 2.68 3.35 4.02 4.69 5.36 6.03
Efficiency vs. Output Current
Ripple vs. Output Current
2
Output Current (A)
Output Current (A)
Output Current (A)
4
37.33
7.33
Min
89
0
0
6
±0.6
7.81
130
Typ
5.5
92
10
6.7
8
Max
39.6
±1.5
6.79
8.83
3.40
163
106
7.6
Vin
Vin
Vin
36 V
48 V
75 V
36 V
48 V
75 V
NL
vicorpower.com
Watts
Amps
Amps
Amps
Unit
Volts
mV
%
%
µF
Figure 13-4 – Transient response 100 – 50%, 3 x 4.7 µF ceramic bypass
capacitance
Figure 13-5 – Transient response 50 – 100%, 3 x 4.7 µF ceramic bypass
capacitance
Figure 13-6 – Output voltage ripple at nominal line and full load with no
external bypass capacitance.
Notes
Nominal input; full load; 25°C
p-p; Nominal input; full load; 20 MHz bandwith
25°C; recycle input voltage to restart (1 minute off)
No load
No load to full load; nominal input, deviation from setpoint
External
Shut down, may require PC enable to initiate restart
Shut down, may require PC enable to initiate restart
Rev. 1.0
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