cui.com

date 09/01/2017

│ page 2 of 6

CUI Inc

│ SERIES: VOF-225A │ DESCRIPTION: AC-DC POWER SUPPLY

INPUT

parameter

conditions/description

min

typ

max

units

voltage

80

264

Vac

frequency

47

63

Hz

current

at 115 Vac, full load

at 230 Vac, full load

2.2

1.1

A

A

inrush current

at 230 Vac, cold start

45

A

leakage current

at 230 Vac

0.3

mA

power factor

at full load

0.95

no load power consumption

0.5

W

input fuse

6.3 A/250 V time delay fuse (included)

OUTPUT

parameter

conditions/description

min

typ

max

units

initial set point accuracy

±1

%

line regulation

±0.5

%

load regulation

from 100% to 10% load

±1

%

start-up delay time

2

s

rise time

at 115/230 Vac

55

ms

hold-up time

at 115/230 Vac

10

ms

built in trim pot

±3

%

switching frequency

50

300

kHz

transient response

25% step load change, at 0.1 A/µS slew rate, 50%

duty cycle, 50/60 Hz, max excursion 4%, recovery

time 5 ms

temperature coefficient

at 0~50°C

±0.05

%/°C

12 Vdc / 500 mA

Notes:

1. Adjustment potentiometer is located on the SMT side of the PCB.

2. Fan supply output voltage tolerance including set point accuracy, line and load regulation is ±10% and ripple and noise is less than 10%.

PROTECTIONS

parameter

conditions/description

min

typ

max

units

over voltage protection

hiccup, auto recovery

110

140

%

over current protection

hiccup, auto recovery

110

%

short circuit protection

hiccup, auto recovery

SAFETY & COMPLIANCE

parameter

conditions/description

min

typ

max

units

isolation voltage

input to output

input to ground

3,000

1,500

Vac

Vac

safety approvals

EN 60950-1, IEC 60950-1 (ed.2), UL 60950

(ed.2), CSA C22.2 No. 60950-1 (ed.2), Class 1

SELV complies with LVD directive

safety class

class I

conducted emissions

EN 55032 Class B

radiated emissions

EN 55032 Class B (to be controlled in end system with external

core (King core K5B RC 25 x 12 x 15-M in input cable (5 turns))

input current harmonics

EN 61000-3-2, class D

voltage fluctuation and flicker

EN 61000-3-3, pass

ESD immunity

EN 61000-4-2, level 3, criterion A

Notes:

3. The power supply is considered a component which will be installed into final equipment. The final equipment still must be tested to meet the necessary EMC directives.

For more information, please visit the product page

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