28 V Wide Maxi Family

Rev 2.8

vicorpower.com

Page 2 of 12

02/2016

800 927.9474

28 V Input

MODULE OUTPUT SPECIFICATIONS

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.

Parameter

Min

Typ

Max

Unit

Baseplate to sink; flat, greased surface

0.08

°C / Watt

Baseplate to sink; thermal pad (P/N 20263)

0.07

°C / Watt

Baseplate to ambient

4.9

°C / Watt

Baseplate to ambient; 1000 LFM

1.1

°C / Watt

Thermal capacity

165

Watt-sec/°C

THERMAL RESISTANCE AND CAPACITY

MODULE FAMILY ELECTRICAL CHARACTERISTICS

Parameter

Min

Typ

Max

Unit

Notes

Output voltage set point

±1%

Vout nom

Nominal input; full load; 25°C

Line regulation

±0.02

±0.20

%

Low line to high line; full load

Temperature regulation

±0.002

±0.005

% / °C

Over operating temperature range

Power sharing accuracy

± 2

± 5

%

10 to 100% of full load

Of nominal output voltage. For trimming below 90%

Programming range

10

110

%

of nominal, a minimum load of 10% of maximum

rated power may be required.

+Out to -Out, +Sense to -Out – Absolute Maximum Ratings

3.3 V

-0.5 to 4.7

Vdc

Externally Applied

5 V

-0.5 to 7.0

Vdc

Externally Applied

6.5 V

-0.5 to 9.0

Vdc

Externally Applied

8 V

-0.5 to 10.9

Vdc

Externally Applied

12 V

-0.5 to 16.1

Vdc

Externally Applied

15 V

-0.5 to 20.0

Vdc

Externally Applied

24 V

-0.5 to 31.7

Vdc

Externally Applied

28 V

-0.5 to 36.9

Vdc

Externally Applied

36 V

-0.5 to 47.2

Vdc

Externally Applied

48 V

-0.5 to 62.9

Vdc

Externally Applied

Parameter

Min

Typ

Max

Unit

Notes

Operating input voltage

9

28

36

Vdc

Input surge withstand

50

Vdc

<100 ms

Undervoltage turn-on

8.75

8.9

Vdc

Undervoltage turn-off

7.8

8.1

8.4

Vdc

Overvoltage turn-off/on

36.3

37.8

39.6

Vdc

Disabled input current

12

14

mA

PC pin low

MODULE INPUT SPECIFICATIONS