28V Wide Micro Family

Rev 1.6

vicorpower.com

Page 2 of 11

4/2013

800 735.6200

28V Wide Input

Parameter

Min

Typ

Max

Unit

Notes

Operating input voltage

9

28

36

Vdc

Input surge withstand

50

Vdc

<100 ms

Undervoltage turn-on

8.8

8.9

Vdc

Undervoltage turn-off

8.5

Vdc

Overvoltage turn-off / on

36.3

37.8

39.6

Vdc

Disabled input current

12

14

mA

PC pin low

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

Programming range

%

Of nominal output voltage. For trimming below 90%

10

110

of nominal, a minimum load of 10% of maximum

rated power may be required.

+Out 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

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 47.1

Vdc

Externally applied

48 V

-0.5 to 62.9

Vdc

Externally applied

MODULEINPUTSPECIFICATIONS

MODULEOUTPUTSPECIFICATIONS

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.

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.

Parameter

Min

Typ

Max

Unit

Baseplate to sink; flat, greased surface

0.24

°C/Watt

Baseplate to sink; thermal pad (P/N 20265)

0.21

°C/Watt

Baseplate to ambient

10.9

°C/Watt

Baseplate to ambient; 1000 LFM

2.8

°C/Watt

Thermal capacity

48

Watt-sec/°C

ThermalResistanceandCapacity

MODULE FAMILY ELECTRICAL CHARACTERISTICS