cui.com

date

01/18/2012

│ page 2 of 4

CUI Inc

│ SERIES: VSKM-S5 Series │ DESCRIPTION: MEDICAL SWITCHING POWER SUPPLY

INPUT

parameter

conditions/description

min

typ

max

units

voltage

85

110

264

370

Vac

Vdc

frequency

47

63

Hz

input current

at 110 Vac

at 230 Vac

110

70

mA

mA

inrush current

at 110 Vac

at 230 Vac

10

20

A

A

external input fuse

(recommended)

slow blow, 250 V

1

A

OUTPUT

parameter

conditions/description

min

typ

max

units

line regulation

±0.5

%

load regulation

10 ~ 100%

±1

%

temperature coefficient

0.02

%/°C

hold-up time

at 230 Vac

50

ms

voltage set point accuracy

3.3 V output

all other models

±3

±2

%

%

switching frequency

100

kHz

PROTECTIONS

parameter

conditions/description

min

typ

max

units

over voltage protection

diode clamp and chip lock up

short circuit protection

auto recovery with no damage from a short on any

output

over-temperature protection

150

°C

SAFETY & COMPLIANCE

parameter

conditions/description

min

typ

max

units

isolation voltage

primary to secondary (for 1 minute)

4,000

Vac

safety approvals

IEC 60601-1, EN 60601-1, UL 60601-1

safety class

class II

EMI/EMC

EN 55011 (level A), IEC/EN 61000-4-2 (level 4, 8kV/15kV), IEC/EN 61000-4-3,

IEC/EN 61000-4-4 (level 4, 4kV), IEC/EN 61000-4-5 (level 4, 2kV/4kV)

RoHS compliant

yes

MTBF

25°C

300,000

hrs

ENVIRONMENTAL

parameter

conditions/description

min

typ

max

units

operating temperature

-25

70

°C

storage temperature

-40

105

°C

case temperature

95

°C

operating humidity

non-condensing

95

%