page

date

DESCRIPTION: full brick dc-dc converter

2 of 4

1/11/2008

20050

phone

phone 503.612.2300 fax

fax 503.612.2382

PART NUMBER: VFB200

INPUT

parameter

conditions/description

min

nom

max

units

input voltage

36

48

75

V dc

under voltage lockout

48 Vin power up

48 Vin power down

32.5 V

input filter

PI Type

OUTPUT

parameter

conditions/description

min

nom

max

units

voltage accuracy

±1%

transient response

25% Step Load Change

500

μ/sec.

External Trim Adj. Range

±10%

Ripple & Noise

20MHz BW 2.5V 3.3V 5V, 100mV pk-pk, max.

40

mV RMS

20MHz BW 12V & 15V, 150mV pk-pk, max.

60

mV RMS

20MHz BW 24V & 48V, 240mV/480mV pk-pk, max.

100

mV RMS

Temperature Coefficient

±0.03

%/°C

Short Circuit Protection

Continuous

Line Regulation1

±0.2

%

Load Regulation2

±0.2

%

Over Voltage Protection Trip Range, % Vo nom

115

140

%

Current Limit

Nominal Output

110

150

%

GENERAL SPECIFICATIONS

parameter

conditions/description

min

nom

max

units

efficiency

see table

isolation voltage

input/output

1500

V dc

input/case

1500

V dc

output/case

1500

V dc

isolation resistance

Ω

switching frequency

300

KHz

operating case temperature

-40

100

°C

storage temperature

40

105

°C

thermal shutdown, case temp

100

°C

dimensions

4.6 x 2.4 x 0.5 inches (116.8 x 61.0 x 12.7mm)

case material

aluminum baseplate with plastic case

notes:

1. measured from high line to low line

2. measured from full load to zero load

3. logic compatibility: open collector ref to-input

module ON: open circuit

module OFF: <0.8 V dc

4. suffix “N” to the model number with negative logic remote ON/OFF