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VSK-S20-T [CUI]

AC-DC POWER SUPPLY; AC- DC电源供应器
VSK-S20-T
型号： VSK-S20-T
厂家： CUI INC    CUI INC
描述：

AC-DC POWER SUPPLY
AC- DC电源供应器
文件： 总5页 (文件大小：284K)
中文：  中文翻译
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date 09/06/2012  
page 1 of 5  
SERIES: VSK-S20-T │ DESCRIPTION: AC-DC POWER SUPPLY  
FEATURES  
• up to 20 W continuous output  
• encapsulated compact case  
• output short circuit protection  
• over current protection  
• thermal protection  
• CE, UL safety approval  
• regulated output  
• universal input (85~264 Vac)  
• efficiency up to 85%  
RoHS  
output  
voltage  
output  
current  
max  
output  
power  
max  
ripple  
and noise  
efficiency  
MODEL  
max  
max  
(Vdc)  
3.3  
5
(A)  
(W)  
(mVp-p)  
(%)  
VSK-S20-3R3U-T  
VSK-S20-5U-T  
VSK-S20-9U-T  
VSK-S20-12U-T  
VSK-S20-15U-T  
VSK-S20-24U-T  
4.1  
3.5  
2.1  
1.6  
1.3  
0.85  
14  
18  
19  
19  
20  
20  
100  
100  
100  
100  
100  
100  
73  
75  
77  
81  
83  
85  
9
12  
15  
24  
PART NUMBER KEY  
VSK-S20- XX U-T  
Base Number  
Output Voltage  
example of 20 W, single output  
cui.com  
CUI Inc │ SERIES: VSK-S20-T │ DESCRIPTION: AC-DC POWER SUPPLY  
date 09/06/2012 │ page 2 of 5  
INPUT  
parameter  
conditions/description  
min  
typ  
max  
units  
85  
120  
264  
370  
Vac  
Vdc  
voltage  
frequency  
input current  
47  
63  
Hz  
at 110 Vac  
at 230 Vac  
330  
180  
mA  
mA  
at 110 Vac  
at 230 Vac  
16  
30  
A
A
inrush current  
recommended external input  
fuse  
3.15 A / 250 V, slow-blow type  
OUTPUT  
parameter  
conditions/description  
min  
typ  
±2  
max  
units  
%
voltage set accuracy  
line regulation  
±0.5  
±1  
%
load regulation  
minimum load  
at 10~100% load  
at 230 Vac  
%
0
%
hold-up time  
80  
0.02  
65  
ms  
temperature coefficient  
switching frequency  
%/°C  
kHz  
PROTECTIONS  
parameter  
conditions/description  
3.3 and 5 V models  
9 V model  
12 and 15 V models  
24 V model  
7.5  
12  
20  
30  
Vdc  
Vdc  
Vdc  
Vdc  
over voltage protection  
overload protection  
110  
%
short circuit protection  
shutdown and auto restart  
SAFETY & COMPLIANCE  
parameter  
conditions/description  
for 1 minute  
min  
typ  
max  
units  
isolation voltage  
safety approvals  
safety class  
3,000  
Vac  
EN 60950-1, IEC 60950-1, UL 60950-1  
Class I  
EMI/EMC  
CISPR22/EN 55022 class B, IEC/EN 61000-4-(2, 3, 4, 5)  
at 230 Vac, 50 Hz  
leakage current  
MTBF  
0.3  
mA  
at 25°C, max. load  
yes  
300,000  
hours  
RoHS compliant  
ENVIRONMENTAL  
parameter  
conditions/description  
min  
-40  
-40  
typ  
max  
70  
units  
°C  
operating temperature  
storage temperature  
case temperature  
humidity  
105  
90  
°C  
°C  
non-condensing  
85  
%
cui.com  
CUI Inc │ SERIES: VSK-S20-T │ DESCRIPTION: AC-DC POWER SUPPLY  
date 09/06/2012 │ page 3 of 5  
DERATING CURVES  
1. output power vs. ambient temperature  
2. output power vs. input voltage  
5 V model  
all other models  
100  
80  
100  
80  
100  
80  
60  
50  
40  
60  
50  
40  
60  
50  
40  
20  
20  
20  
-40  
-30  
-20  
-10  
0
10  
50  
60  
70  
-40  
-30  
-20  
-10  
0
10  
50  
60  
70  
70  
85  
110  
125  
210  
225  
240  
264  
Ambient Temperature (°C)  
Ambient Temperature (°C)  
Input Voltage (Vac)  
MECHANICAL  
parameter  
dimensions  
weight  
conditions/description  
min  
typ  
max  
units  
inch  
g
3.783 x 2.126 x 1.26 (96.1 x 54 x 32 mm)  
170  
MECHANICAL DRAWING  
units: mm [inches]  
tolerance: ±0.50 [±0.020]  
ꢆꢁꢂꢃꢄ>ꢅꢂꢇꢀꢅ@  
ꢌ ꢅꢂꢊꢄ>ꢄꢂꢃꢅꢀ@  
ꢀꢁꢂꢃꢄ>ꢅꢂꢅꢆꢄ@  
ꢅꢋ  
ꢈ
ꢃ
ꢋ
ꢅ
ꢊ
ꢁ
ꢇ
ꢀ
ꢍTopꢉViewꢎ  
PIN CONNECTIONS  
PIN FUNCTION  
1
GND  
AC(N)  
AC(L)  
-Vo  
2
3
4
5
6
7
8
ꢍSideꢉViewꢎ  
NC  
TRIM  
NC  
ꢀꢂꢊꢄ>ꢄꢂꢅꢅꢊ@  
ꢋꢄꢂꢁꢄ>ꢄꢂꢀꢃꢃ@  
+Vo  
cui.com  
CUI Inc │ SERIES: VSK-S20-T │ DESCRIPTION: AC-DC POWER SUPPLY  
date 09/06/2012 │ page 4 of 5  
TYPICAL APPLICATION CIRCUIT  
EXTERNAL CAPACITORS  
TYPICAL VALUE Unit: µF)  
NTC  
FUSE  
C1 C2 TVS1 RL  
EMC Filter (see note 3)  
FUSE NTC  
(
+V o  
L
L
MODEL  
C1  
L
L
C7  
C8  
NF  
VSK-S20-3R3U-T  
VSK-S20-5U-T  
VSK-S20-9U-T  
VSK-S20-12U-T  
VSK-S20-15U-T  
VSK-S20-24U-T  
330  
330  
220  
220  
220  
220  
N
N
C9  
MOV  
LOAD  
N
N
-Vo  
Notes:  
1. Output filtering capacitors C1, C2 and C3 are electrolytic capacitors, 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. TVS is recommended component  
to protect post-circuits (if converter fails).  
2. 0.1 μF is recommended for C1.  
3. If a higher requirement to EMC performance is required it is recommended to add and ”EMC filter” at the input end, recommended parameter are as follows:  
MOV: Varistor is used to protect the device under surge.  
C7,C8:Y capacitor, recommended parameter 2200pF/400V;  
C9:X capacitor, recommended parameter 0.1ꢀF/275V;  
NF: common model choke, recommended inductance is about 10mH-30mH.  
TYPICAL EFFICIENCY CURVES  
Vin = 230 Vac  
95  
Load = 100%  
90  
88  
86  
84  
82  
80  
78  
76  
74  
72  
70  
90  
85  
80  
75  
70  
65  
60  
55  
VSK-S20-5U-T  
VSK-S20-24U-T  
VSK-S20-5U-T  
VSK-S20-24U-T  
50  
10 20 30 40 50 60 70 80 90 100  
Load (%)  
85  
120  
240  
264  
Input Voltage (Vac)  
PARALLEL LINES  
Copper Sheet  
Fuse  
L
3
2
+Vo  
-Vo  
C1  
Connect  
Oscillograph Probe  
C2  
Load  
VSK  
N
25.4mm  
25.4mm  
C1:10μF  
C2:0.1μF  
cui.com  
CUI Inc │ SERIES: VSK-S20-T │ DESCRIPTION: AC-DC CONVERTER  
date 09/06/2012 │ page 5 of 5  
TRIM APPLICATION AND CALCULATION  
Formula for resistance of Trim  
Application circuit for TRIM  
(Part in broken line is the interior of the models)  
aR  
2
Vref  
Vot-Vref  
-R  
3
up: R  
down:  
T
T
=
=
a=  
a=  
R
R
1
2
+Vot  
+Vo t  
R
2
-a  
aR  
1
Vot-Vref  
Vref  
-R  
3
R
R1-a  
R
1
R
T
R
1
R
3
Note: Value for R1, R2, R3 and Vref refer to the following table.  
RT: Resistance of Trim  
Vref  
Trim  
R
3
Vref  
Trim  
a: User-defined parameter, no actual meanings.  
R
2
R
T
Vo(V)  
R
2
3.3  
5
12  
15  
24  
Resistance  
R1(KΩ)  
2
1.2  
1
3.3  
3.3  
1
3.8  
1
7.5  
1.5  
1
8.6  
1
0V  
Trim down  
0V  
Trim up  
R2(KΩ)  
R3(KΩ)  
1
1
Vref(V)  
1.24  
2.5  
2.5  
2.5  
2.5  
Vot(V)  
Output voltage of Trim, variation ≤ 10%  
REVISION HISTORY  
rev.  
description  
date  
1.0  
initial release  
09/06/2012  
The revision history provided is for informational purposes only and is believed to be accurate.  
Headquarters  
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.  

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