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DC048B Datasheet(PDF) 7 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) 7 Page - Vicor Corporation

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VI Brick / 48V Input DC-DC Converter Modules
vicorpower.com
Rev. 1.0
Page 7 of 21
Parameter
Min
Typ
Max
Unit
Notes
Efficiency
86
89
%
Nominal input; full load; 25°C
Ripple and noise
87
109
mV
p-p; Nominal input; full load; 20 MHz bandwith
Output OVP setpoint
2.33
2.48
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
27,000
µF
External
Load current
0
80
Amps
Current limit (peak)
86.4
92
104
Amps
Shut down, may require PC enable to initiate restart
Short circuit current (avg)
0
1.0
40
Amps
Shut down, may require PC enable to initiate restart
1.8 Vout, 144 W OPERATING SPECIFICATIONS - (e.g. DC048B018T014FP)
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
8
16
24
32
40
48
56
64
72
80
Efficiency vs. Output Current
Output Current (A)
36 V
48 V
75 V
Vin
65
70
75
80
85
90
95
0
8
16
24
32
40
48
56
64
72
80
NL
Vin
Ripple vs. Output Current
Output Current (A)
0
10
20
30
40
50
60
70
80
90
100
0
20406080
Figure 4-4 – Transient response 100 – 50%, 3 x 4.7 µF ceramic bypass
capacitance
Figure 4-1 – Efficiency vs. load
Figure 4-5 – Transient response 50 – 100%, 3 x 4.7 µF ceramic bypass
capacitance
Figure 4-2 – Power dissipation vs. load
Figure 4-3 – Output ripple vs. load with no external bypass capacitance
Figure 4-6 – Output voltage ripple at nominal line and full load with no
external bypass capacitance.


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