cui.com

CUI Inc

│ SERIES: VF-S320-XXA-CFS │ DESCRIPTION: AC-DC POWER SUPPLY

date 04/23/2013

│ page 2 of 5

INPUT

parameter

conditions/description

min

typ

max

units

voltage

90-132/180-264 auto selectable

90/180

132/264

Vac

frequency

47

63

Hz

current

at 100~120 Vac, cold start

at 200~240 Vac, cold start

8

4

A

A

inrush current

at 115 Vac, full load, cold start

at 230 Vac, full load, cold start

35

70

A

A

power factor

compliant to EN 61000-3-2 class A

OUTPUT

parameter

conditions/description

min

typ

max

units

line regulation

low line to high line

±1

%

load regulation

all other outputs

±1

%

temperaturecoefficient

0.25

mV/°C

transient response

Output voltage returns to within 1% in less than 2.5 ms for a 50% load change.

Peak transient does not exceed 5%.

start-up time

at 120 Vac

1

s

rise time

0.2

20

ms

hold-up time

at 120 Vac and 80% of rated maximim load

20

ms

adjustability

±5

%

power good

Designated as PG on the CN1.

This signal goes high 100-500 mS after the output reaches regulation.

It goes low at least 1 mS before loss of regulation.

fan drive

12 Vdc / 300 mA for external fan

PROTECTIONS

parameter

conditions/description

min

typ

max

units

over voltage protection

AC input needs to be reset to restart the power supply.

130

%

over current protection

automatically recovers

110

140

%

short circuit protection

short circuit can be continuous, recovers automatically upon removal of short

over temperature protection

auto recovery

85

°C

SAFETY & COMPLIANCE

parameter

conditions/description

min

typ

max

units

isolation voltage

applied for 3 seconds at 10 mA max.

primary to secondary

primary to transformer core

primary to earth chassis

3,000

1,500

1,500

Vac

Vac

Vac

safety approvals

UL 60950-1, CSA C22.2 No. 60950-1-03, TUV EN 60950-1, CE Mark (LVD)

EN 61000-3-(2,3) & IEC 61000-4 Series regulations and CB

EMI/EMC

pass FCC Part 15, CISPR 22 class B, conducted

leakage current

at 240 Vac

at 120 Vac

500

300

μA

μA

RoHS compliant

yes

MTBF

according to MIL-HDBK-217 at 30 ºC

100,000

hrs

For more information, please visit the product page.