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CUI Inc

│ SERIES: VOF-70 │ DESCRIPTION: AC-DC POWER SUPPLY

date 11/19/2020

│ page 2 of 5

INPUT

parameter

conditions/description

min

typ

max

units

voltage

90

277

Vac

frequency

47

63

Hz

input current

at 115 Vac, full load

at 230 Vac, full load

1.5

0.7

A

A

inrush current

at 230 Vac, cold start

50

A

leakage current

at 277 Vac

3.5

mA

no load power consumption

at 110 Vac

at 230 Vac

0.24

0.30

W

W

input fuse

2 A/250V time delay fuse (included)

OUTPUT

parameter

conditions/description

min

typ

max

units

line regulation

low line to high line

±0.5

%

load regulation

full load to 10% load

±1

%

initial set point accuracy

±3

%

transient response

1 kHz, 10~100% load

VOF-70-5

VOF-70-12

VOF-70-15

VOF-70-24

VOF-70-28

VOF-70-48

500

1200

1500

2400

2800

4800

mVp-p

mVp-p

mVp-p

mVp-p

mVp-p

mVp-p

hold-up time

at 115 Vac, full load

8

ms

start-up time

at 115 Vac, full load

50

ms

start-up delay

at 115 Vac, full load

1000

ms

adjustability

built in trim pot

±5

%

switching frequency

61

65

69

kHz

temperaturecoefficient

±0.03

%/°C

PROTECTIONS

parameter

conditions/description

min

typ

max

units

short circuit protection

hiccup, auto recovery

110

%

over current protection

hiccup, auto recovery

110

%

over voltage protection

clamped by TVS

SAFETY & COMPLIANCE

parameter

conditions/description

min

typ

max

units

isolation voltage

input to output

input to ground

output to ground

3,000

1,500

1,500

Vac

Vac

Vac

safety approvals

certified to 60950: UL/cUL

EN 55022: 2010 Class B, EN 61204-3:2000, EN

61000-6-3: 2007 +A1: 2011, EN 61000-3-2:

2006 +A2: 2009, EN 61000-3-3: 2008, EN 55024:

2010, EN 61000-6-1: 2007, ENV 50204: 1995, CE,

FCC

class

class II

MTBF

as per MIL-HDBK-217F at 25 °C, full load

250,000

hours

RoHS

2011/65/EU

Notes:

1.Thepowersupplyisconsideredacomponentwhichwillbeinstalledintofinalequipment.ThefinalequipmentstillmustbetestedtomeetthenecessaryEMCdirectives.

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