cui.com

date

11/01/2012 │ page 2 of 5

CUI Inc

│ SERIES: VWRAT2 │ DESCRIPTION: DC-DC CONVERTER

INPUT

parameter

conditions/description

min

typ

max

units

operating input voltage

12 V model

24 V model

9

18

12

24

18

36

Vdc

Vdc

OUTPUT

parameter

conditions/description

min

typ

max

units

line regulation

measured from low line to high line

±0.2

±0.5

%

load regulation

measured from 10% to 100% full load

±0.5

±1

%

voltage accuracy

positive

negative

refer to recommended circuit

±1

±3

±3

±5

%

%

ripple & noise

35

150

mVp-p

switching frequency

100% load, nominal input voltage

300

kHz

temperature coefficient

±0.03

%/°C

PROTECTIONS

parameter

conditions/description

min

typ

max

units

short circuit protection

continuous, automatic recovery

SAFETY AND COMPLIANCE

parameter

conditions/description

min

typ

max

units

isolation voltage

tested for 1 minute, at 1 mA max.

1,500

Vdc

insulation resistance

at 500 Vdc

1,000

MΩ

isolation capacitance

input to output

85

pF

RoHS compliant

yes

MTBF

1,000,000

hours

ENVIRONMENTAL

parameter

conditions/description

min

typ

max

units

operating temperature

-40

85

°C

storage temperature

-55

125

°C

storage humidity

non-condensing

95

%

temperature rise

at full load

15

°C

lead temperature

for 10 seconds

300

°C