VSK-S3-15U 查看數據表（PDF） - CUI INC
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VSK-S3-15U Datasheet PDF : 5 Pages
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CUI Inc │ SERIES: VSK-S3 │ DESCRIPTION: AC-DC POWER SUPPLY
date 03/31/2014 │ page 4 of 5
TYPICAL APPLICATION CIRCUIT
* FUS E * NT C
L
C1 C2 Tvs
L
+V0
M OV
C3
+
22
+
RL
26
- V0
N
N
Figure1
*F USE *NT C
L
C7
NF
C6
C8
N
L
+V 0
C3
+
22
MO V
26
-V0
N
C1 C2 Tvs
+
RL
Figure 2 VSK-S3 EMC Filtering Circuit
MODEL
VSK-S3-3R3U
VSK-S3-5U
VSK-S3-9U
VSK-S3-12U
VSK-S3-15U
VSK-S3-24U
EXTERNAL CAPACITORS TYPICAL VALUE (Unit: µF)
C1
C2
C3
150
0.1
4.7/400V
150
0.1
4.7/400V
150
0.1
4.7/400V
150
0.1
4.7/400V
150
0.1
4.7/400V
150
0.1
4.7/400V
TVS
P4KE6.8A
P4KE6.8A
P4KE12A
P4KE20A
P4KE20A
P4KE30A
Notes:
1. Output filtering capacitors C1, C3 is 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 apacitor should be 80% or above. C2, C4 is ceramic
capacitors , it is used to filter high frequency noise. TVS is a recommended component to protect
post-circuits (when converter fails).
2. MOV is required for VSK-S3 models. Model: 471KD05, it is used to protect the device under surge.
3. It is recommended to connect FUSE, the parameter is 0.5A/250V slow blow. External input NTC is
recommended to use D -14 or 10Ω/2W wire-round resistor.
4. If EMC performance is required, recommended to add “EMC filter” at the input end(see figure 2)
C6:X capacitor, recommended parameter 0.1uF/275V; C7,C8:Y capacitor, recommended parameter
220pF/275V; NF: common model choke, recommended inductance is about 10mH-30mH.
5. Terminals 22 and 26 are internal rectification and filtering terminals. To protect the models further, it
is recommended to connect an electrolytic capacitor C3 (it is recommended to be 4.7uF/400V). If
operation voltage of the module is between 160~264VAC, C3 can be removed.
Note:
1. All specifications measured at Ta=25°C, humidity <75%, rated input voltage, and rated output load, unless otherwise specified.
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