CUI VSKM-S5-5U

date
01/18/2012
page
1 of 4
SERIES: VSKM-S5 Series │ DESCRIPTION: MEDICAL SWITCHING POWER SUPPLY
FEATURES
•
•
•
•
•
Up to 5.5 W continuous power
Compact board mount design
Universal input (85~264 Vac / 110~370 Vdc)
Single output from 3.3 to 24 V
Over voltage, over temperature, and short
circuit protections
• Full medical approvals
• Efficiency up to 78%
RoHS
MODEL
VSKM-S5-3R3U
output
voltage
output
current
output
power
ripple
and noise1
efficiency
(Vdc)
max
(A)
max
(W)
typ
(mVp-p)
typ
(%)
3.3
1.25
4.2
30
66
VSKM-S5-5U
5
1
5
30
72
VSKM-S5-9U
9
0.55
5
30
74
VSKM-S5-12U
12
0.42
5
30
76
VSKM-S5-15U
15
0.33
5
30
76
VSKM-S5-24U
24
0.23
5.5
30
78
Notes:
1. Ripple and noise measured at 20 MHz bandwidth
PART NUMBER KEY
VSKM-S5 - XXU
Base Number
Output Voltage
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CUI Inc │ SERIES: VSKM-S5 Series │ DESCRIPTION: MEDICAL SWITCHING POWER SUPPLY
date 01/18/2012 │ page 2 of 4
INPUT
parameter
conditions/description
min
voltage
frequency
max
units
85
110
typ
264
370
Vac
Vdc
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
line regulation
load regulation
10 ~ 100%
temperature coefficient
typ
max
units
±0.5
%
±1
%
0.02
%/°C
hold-up time
at 230 Vac
50
ms
voltage set point accuracy
3.3 V output
all other models
±3
±2
%
%
100
kHz
switching frequency
PROTECTIONS
parameter
conditions/description
min
over voltage protection
diode clamp and chip lock up
short circuit protection
auto recovery with no damage from a short on any
output
typ
over-temperature protection
max
units
150
°C
max
units
SAFETY & COMPLIANCE
parameter
conditions/description
min
isolation voltage
primary to secondary (for 1 minute)
typ
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
95
°C
95
%
case temperature
operating humidity
non-condensing
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CUI Inc │ SERIES: VSKM-S5 Series │ DESCRIPTION: MEDICAL SWITCHING POWER SUPPLY
date 01/18/2012 │ page 3 of 4
DERATING CURVES
≈
100
100
80
Load (%)
Load (%)
2. output power vs. input voltage
≈
1. output power vs. ambient temperature
60
50
40
20
80
60
50
40
-40
-30 -25 -20
-10
0
10
≈
≈
20
50
60
70
70
85
Ambient Temperature (°C)
110
125
210
225
240
264
Input Voltage (Vac)
MECHANICAL
parameter
conditions/description
dimensions
2.0 x 1.0 x 0.6 inch (50.8 x 25.4 x 15.2 mm)
min
case material
UL94V-0
typ
weight
max
units
35
g
MECHANICAL DRAWING
units: mm [inches]
tolerance: ±0.5 [±0.02]
pin section tolerance: ±0.10 [±0.004]
50.80 2.000
15.16 0.597
3
4
2
4
10.16 0.400
20.32 0.800
12.70 0.500
3
1
10.16 [0.400]
2
25.40 1.000
4 5.7 2 [1.800]
50
+0. 020
50.80+0.
-0. 00 [2.0 00-0. 000
]
recommended PCB footprint (top view)
grid: 2.54 mm (0.10 inch)
45.72 1.800
PIN CONNECTIONS
PIN
FUNCTION
1
AC(N)
2
AC(L)
3
+Vo
4
-Vo
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20.32[0. 800]
1
1.00 0.039
(TYP)
6.00 0.236 (TYP)
+0.50
.0 20
25.40 -0
[1.000 +0
]
.0 0
- 0.000
∅1.20 [0.047]
CUI Inc │ SERIES: VSKM-S5 Series │ DESCRIPTION: MEDICAL SWITCHING POWER SUPPLY
date 01/18/2012 │ page 4 of 4
TYPICAL APPLICATION CIRCUIT
) 86 ( 17 &
/
L
NF
+V0
&
&
C7
+
C6
5/
C8
-V0
1
N
EMC Application Figure
EXTERNAL CAPACITORS TYPICAL VALUE (Unit: μF)
Notes:
MODEL
C1
C2
VSKM-S5-3R3U
47
0.1
VSKM-S5-5U
47
0.1
VSKM-S5-9U
33
0.1
VSKM-S5-12U
33
0.1
VSKM-S5-15U
33
0.1
VSKM-S5-24U
10
0.1
1. Output filtering capacitor C1 is an electrolytic capacitor. It is recommended to use high frequency
and low impedance electrolytic capacitors. For capacitance and current of capacitor please refer to
manufacture’s datasheet. Voltage derating of capacitor should be 80% or above. C2 is ceramic
capacitor, it is used to filter high frequency noise.
2. It is recommended to use a 1A/250V slow blow FUSE. External input NTC is recommended to use
5D-14 or 10Ω/2W wire-round resistor.
3. If EMC performance is required, it is recommended to add “EMC filter” at the input end (see EMC
Application Figure).
C6: X capacitor, recommended parameter 0.1μF/275V;
C7,C8: Y capacitor, recommended parameter 2200pF/400V;
CY:Y capacitor, recommended parameter 102K/400V
NF: common model choke, recommended inductance is about 10mH-30mH.
REVISION HISTORY
rev.
description
date
1.0
initial release
01/16/2012
The revision history provided is for informational purposes only and is believed to be accurate.
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20050 SW 112th Ave.
Tualatin, OR 97062
800.275.4899
Fax 503.612.2383
cui.com
techsupport@cui.com
CUI offers a two (2) year limited warranty. Complete warranty information is listed on our website.
CUI reserves the right to make changes to the product at any time without notice. Information provided by CUI is believed to be accurate and reliable. However, no responsibility is
assumed by CUI for its use, nor for any infringements of patents or other rights of third parties which may result from its use.
CUI products are not authorized or warranted for use as critical components in equipment that requires an extremely high level of reliability. A critical
component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to
affect its safety or effectiveness.