ELECTRICAL CHARACTERISTICS
Electrical characteristics apply over the full operating range of input voltage, output load (resistive) and baseplate temperature,
unless otherwise specified. All temperatures refer to the operating temperature at the center of the baseplate.
MODULE OPERATING SPECIFICATIONS
Parameter
Operating input voltage
Input surge withstand
Output voltage setpoint
Output OVP setpoint
Output power
Efficiency
86.6
89.8
47.52
53.8
48
55.8
Min
18
Typ
24
Max
36
50
48.48
57.8
400
Unit
Vdc
Vdc
Vdc
Vdc
Watts
%
<100ms
Nominal input; full load; 25°C
25°C; recycle input voltage to restart ( 1 minute off )
At 100°C baseplate temperature
Nominal input; 75% of full load; 25°C
Notes
MODULE INPUT SPECIFICATIONS
Parameter
Undervoltage turn-on
Undervoltage turn-off
Overvoltage turn-off/on
Dissipation, standby
14.77
36.3
Min
Typ
17.5
15.3
37.8
11.7
39.6
13.5
Max
17.9
Unit
Vdc
Vdc
Vdc
Watts
No load
Notes
MODULE OUTPUT SPECIFICATIONS
Parameter
Line regulation
Load regulation
Temperature regulation
Ripple and noise, p-p
Current limit
Short circuit current
Power sharing accuracy
Programming range
10
8.46
5.81
Min
Typ
±0.02
±0.06
±0.002
58
9.55
9.55
±2
Max
±0.2
±0.2
±0.005
73
11.3
11.3
±5
110
Unit
%
%
% / °C
mV
Amps
Amps
%
%
Notes
Low line to high line; full load
No load to full load; nominal input
-20 to 100°C
Nominal input; full load; 25°C; 20MHz bandwidth
Output voltage 95% of nominal
Output voltage <250mV
10 to 100% of full load
Of nominal output voltage. For trimming below 90%
of nominal, a minimum load of 10% of maximum
rated power may be required.
Note:
For important information relative to applications where the converter modules are subject to continuous dynamic loading,
contact Vicor applications engineering at 800-927-9474.
Vicor Corp.
Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
24Vin/48Vout/400W DC-DC Converter
Rev. 5.2
Page 2 of 9
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