VI Brick / 48V Input DC-DC Converter Modules

vicorpower.com

Rev. 1.1

Page 3 of 21

Parameter

Min

Typ

Max

Unit

Notes

Output voltage setpoint

2%

Vout nom.

Nominal input; full load; 25°C

Line regulation

±0.5

±1

%

Low line to high line; full load, deviation from setpoint

Temperature regulation

±0.03

.05

% / °C

Over operating temperature range

[a]

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

0.20

°C/Watt

Baseplate to sink; thermal pad

0.18

°C/Watt

Baseplate to ambient

6.5

°C/Watt

Baseplate to ambient; 1000 LFM

2.0

°C/Watt

Thermal capacity

47.7

Watt-sec/°C

MODULE FAMILY ELECTRICAL CHARACTERISTICS (CONT.)

Output Specifications

[a]

Thermal Resistance and Capacity

Parameter

Min

Typ

Max

Unit

Notes

Primary Control (PC)

DC voltage

4.8

5.0

5.2

Vdc

Referenced to –In

Module disable voltage

2.3

2.4

Vdc

Referenced to –In

Module enable voltage

2.5

2.6

Vdc

Referenced to –In

Disable hysteresis

100

mV

Current limit

1.75

1.90

mA

Disable delay time

1

µs

Control Specifications

0

1

2

3

4

5

6

7

8

0

200

400

600

800

1000

Air Velocity (LFM)

Figure 1 – Thermal impedance vs. airflow