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
Input voltage
24 Vin
Min
Typ
Max
Surge Withstand
Unit
Notes
18
36
24
48
36
75
50
Vdc
Vdc
Vdc
Vdc
%
<100 ms surge withstand
48 Vin
100
400
500
300 Vin
180
250
300
375
375
425
1
375 Vin
Output voltage setpoint
Nominal input; full load; 25°C
MODULE OUTPUT VOLTAGE RELATED SPECIFICATIONS
Parameter
2V
3.3V
5V
12V
15V
24V
28V
48V
54V
Unit
Notes
Efficiency (typ.)
73.5
80.0
83.5
85.5
87.0
88.0
89.0
90.0 89.6
%
Nominal input; 80% load; 25°C
Nominal input; full load;
25°C; 20 MHz BW
Ripple and noise, p-p (typ.)
75
60
70
130
90
80
65
50 160
mV
25°C; recycle input voltage to
restart ( 1 minute off )
Output OVP setpoint (nom.) 2.8
4.3
6.3
14.3
17.8
28.1
32.7
55.7 62.6
Volts
Dissipation, standby (typ.)
Load regulation (max.)
Current limit (typ.)
4.8
0.5
125
5.6
0.5
125
6.2
0.5
8.0
0.5
8.0
0.5
6.0
0.5
7.4
0.5
8.5
0.5
6.0
0.5
Watts
% Vout
% Iout
No load; nominal input
No load to full load; nominal input
Output voltage 95% of nominal
125
125
125
125
125
125
125
Short circuit current (typ.)
125
125
125
125
125
125
125
125
125
% Iout
Output voltage <250 mV
MODULE INPUT SPECIFICATIONS
Parameter
24 Vin
17.5
48 Vin
34.9
300 Vin
175
375 Vin
243
Units
Vdc
Notes
Undervoltage turn-on
Undervoltage turn-off
Overvoltage turn-off/on
Typical value
Typical value
Typical value
15.3
30.5
153
212
Vdc
37.8
78.8
N/A
446
Vdc
Note: 300 Vin models do not have overvoltage turn-off.
MODULE OUTPUT SPECIFICATIONS
Parameter
Min
Typ
0.5
Max
Unit
%
Notes
Line regulation
Low line to high line; full load
Over operating temperature range
10 to 100% of full load
Temperature regulation
Power sharing accuracy
0.005
5
% / °C
%
Of nominal output voltage. For trimming below
90% of nominal, a minimum load of 10% of
maximum rated power may be required.
Programming range
10
110
%
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
FasTrak Maxi E-Grade Family
Rev. 1.1
Page 2 of 8
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