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DC048B Datasheet(PDF) 17 Page - Vicor Corporation

Part No. DC048B
Description  48 V Input DC-DC Converter Modules
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Maker  VICOR [Vicor Corporation]
Homepage  http://www.vicorpower.com
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DC048B Datasheet(HTML) 17 Page - Vicor Corporation

 
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VI Brick / 48V Input DC-DC Converter Modules
vicorpower.com
Rev. 1.0
Page 17 of 21
Parameter
Min
Typ
Max
Unit
Notes
Efficiency
90
93
%
Nominal input; full load; 25°C
Ripple and noise
160
200
mV
p-p; Nominal input; full load; 20 MHz bandwith
Output OVP setpoint
56.0
59.4
Volts
25°C; recycle input voltage to restart (1 minute off)
Dissipation, standby
5.5
7.6
Watts
No load
Load regulation
±0.6
±1.5
%
No load to full load; nominal input, deviation from setpoint
Output capacitance
47
µF
External
Load current
0
4.58
Amps
Current limit (peak)
4.95
5.27
5.95
Amps
Shut down, may require PC enable to initiate restart
Short circuit current (avg)
0
1.0
2.29
Amps
Shut down, may require PC enable to initiate restart
48 Vout, 220 W OPERATING SPECIFICATIONS - (e.g. DC048B480T022FP)
Power Dissipation vs. Output Current
Output Current (A)
36 V
48 V
75 V
Vin
4
6
8
10
12
14
16
18
20
0 0.45 0.9 1.35 1.8 2.25 2.7 3.15 3.6 4.05 4.5 4.95
Efficiency vs. Output Current
Output Current (A)
36 V
48 V
75 V
Vin
65
70
75
80
85
90
95
0
0.45
0.9 1.35
1.8 2.25
2.7 3.15
3.6 4.05 4.5 4.95
NL
Vin
Ripple vs. Output Current
Output Current (A)
0
20
40
60
80
100
120
140
160
012345
Figure 14-4 – Transient response 100 – 50%, 3 x 4.7 µF ceramic bypass
capacitance
Figure 14-1 – Efficiency vs. load
Figure 14-5 – Transient response 50 – 100%, 3 x 4.7 µF ceramic bypass
capacitance
Figure 14-2 – Power dissipation vs. load
Figure 14-3 – Output ripple vs. load with no external bypass capacitance
Figure 14-6 – Output voltage ripple at nominal line and full load with no
external bypass capacitance.


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