MODULE FAMILY 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 INPUT SPECIFICATIONS
Parameter
Min
18
Typ
24
Max
36
Unit
Vdc
Vdc
Vdc
Notes
Operating input voltage
Input surge withstand
Undervoltage turn-on
See undervoltage turn-off note
<100 ms
50
17.5
15.3
37.8
17.9
Modules will operate down to 16 Vin at 75% rated power
after startup at >17.9 V except the following models:
3.3 V/264 W, 5 V/400 W, 12 V/400 W, 15 V/400 W, 28 V/400 W
Undervoltage turn-off
Overvoltage turn-off/on
14.8
36.3
Vdc
Vdc
39.6
MODULE OUTPUT SPECIFICATIONS
Parameter
Output voltage setpoint
Line regulation
Min
Typ
Max
1%
Unit
Vout nom
%
Notes
Nominal input; full load; 25°C
Low line to high line; full load
Over operating temperature range
10 to 100% of full load
0.02
0.002
2
0.20
0.005
5
Temperature regulation
Power sharing accuracy
% / °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
%
+Out to -Out, +Sense to -Out – Absolute Maximum Ratings
3.3 V
5 V
-0.5 to 4.7
-0.5 to 7.0
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Vdc
Externally applied
Externally applied
Externally applied
Externally applied
Externally applied
Externally applied
Externally applied
Externally applied
Externally applied
8 V
-0.5 to 10.9
-0.5 to 16.1
-0.5 to 20.0
-0.5 to 31.7
-0.5 to 36.9
-0.5 to 47.2
-0.5 to 62.9
12 V
15 V
24 V
28 V
36 V
48 V
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.
THERMAL RESISTANCE AND CAPACITY
Parameter
Min
Typ
0.08
0.07
4.9
Max
Unit
°C/Watt
°C/Watt
Baseplate to sink; flat, greased surface
Baseplate to sink; thermal pad (P/N 20265)
Baseplate to ambient
°C/Watt
Baseplate to ambient; 1000 LFM
Thermal capacity
1.1
165
°C/Watt
Watt-sec/°C
Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
24V Maxi Family
Rev. 3.8
Page 2 of 13
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