rev.

page

date

page

date

DESCRIPTION: switching power supply

1 of 4

02/2010

20050

phone

phone 503.612.2300 fax

www.v-infinity.com

fax 503.612.2383

PART NUMBER: VOF-80

features

• no-load power consumption < 0.5W

• universal input 85~264 V ac

• over current, over voltage protected

• industry standard footprint

• efficiency up to 89%

• safety approved to CB, TUV, CE, UL/cUL

• conducted EMI meets EN55022 class B and FCC class B

MODEL

output voltage

efficiency

(V dc)

(A)

(%)

(mVp-pmax.)

(%)

VOF-80-3.3

3.3

10

±5

120

75

VOF-80-5

5

10

±5

120

76

VOF-80-12

12

6.66

±5

120

85

VOF-80-15

15

5.33

±5

150

86

VOF-80-24

24

3.33

±5

240

87

VOF-80-48

48

1.66

±5

480

89

notes:

1. Measured from high line to low line at rated load.

2. Measured from full load to 10% load at 115 V ac.

3. Ripple & noise are measured at 20MHz bandwidth with 0.1 µf ceramic & 10 µf electrolytic capacitors on the output.

The two earth ground pads are connected to input earth ground.

4. See derating curves

INPUT

parameter

conditions/description

min

nom

max

units

input frequency

47

63

Hz

input voltage

output power derated from 85-90 V ac

85

264

V ac

input current

AC input of 110 V ac

1500

mA

AC input of 220 V ac

800

mA

inrush current

AC input of 110 V ac, full load, cold start

25

A

AC input of 220 V ac, full load, cold start

50

A

input fuse

built-in, non-user serviceable

OUTPUT

parameter

conditions/description

min

nom

max

units

efficiency

see table above, typical values measured

at 115 V ac, full load

hold up time

at 115 V ac, full load

8

mS

adjustability

-10

+5

%

temp. coefficient

-0.05

+0.05

%/°C

PROTECTION CIRCUIT

parameter

conditions/description

output overload

current limiting starts at 105% of the rated output current and recovers automatically

output over voltage output voltage is limited by TVS clamping to: 6.8 V for 3.3 & 5 V models, 135% for all other models

output short circuit

protected, long-term short circuit may reduce reliability