he VK series is a family of cost effective 1.5W single & dual output DC-DC converters. These converters are consisted with Nickle-
coated copper in a 24-pin DIL package with high performance features such as 1500 VDC ~ 3500VDC input/output isolation voltage,
continuous short circuit protection with automatic restart and tight line / load regulation. Devices are encapsulated using flame retardant
resin. Input voltages of 24 and 48 with output voltage of 3.3,5,7.2,9,12,15,18, 24,
±3.3, ±5, ±7.2, ±9, ±12, ±15 , ±18 and ±24
Vdc. High
performance features include high efficiency operation up to 78% and output voltage accuracy of
±1%
maximum.
All specifications typical at Ta=25°C, nominal input voltage and full load unless otherwise specified
OUTPUT SPECIFICATIONS
Voltage accuracy
Line regulation
Load regulation
Ripple & noise
(20 MHz bandwidth)(1)
Short circuit protection
Temperature coefficient
Capacitor load
(2)
INPUT SPECIFICATIONS
Voltage Range
Max. Input Current
No-Load Input Current
Input Filter
Input Reflected Ripple Current
(3)
EMC SPECIFICATIONS
±1%
±0.5%
±0.5%
(Output
3.3V /
±3.3V
Model)
±1.5%
60mV pk-pk
Indefinite(Automatic Recovery)
±0.02%/°C
See table
Radiated Emissions
Conducted Emissions
(4)
ESD
RS
EFT
Surge
(5)
CS
PFMF
EN55022
EN55022
IEC 61000-4-2
IEC 61000-4-3
IEC 61000-4-4
IEC 61000-4-5
IEC 61000-4-6
IEC 61000-4-8
CLASS A
CLASS A
Criteria A
Criteria A
Criteria A
Criteria A
Criteria A
Criteria A
T
Perf.
Perf.
Perf.
Perf.
Perf.
Perf.
See table
See table
See table
PI Type
35mA pk-pk
PHYSICAL SPECIFICATIONS
Case Material
Nickel-coated Copper
Non-conductive Black Plastic(UL94V-0 rated)
Non-conductive Black Plastic(UL94V-0 rated)
Base Material
¨0.5mm
Brass Solder-coated
Pin Material
Epoxy (UL94V-0 rated)
Potting Material
17.0g(Metal
Case)/13.5g(Plastic
Case)
Weight
1.25”x0.8”x0.4”
Dimensions
ENVIRONMENT SPECIFICATIONS
Operating Temperature
-40° ~85°
See Derating Curve)
Maximum Case Temperature
100°
Storage Temperature
-40° ~125°
Cooling
Nature Convection
ABSOLUTE MAXIMUM RATINGS
(6)
These are stress ratings. Exposure of devices to any of these
conditions may adversely affect long-term reliability.
Input Surge Voltage(100mS)
24 Models
40 Vdc max.
80 Vdc max.
48 Models
Soldering Temperature
260°
(1.5mm from case 10 sec. max.)
GENERAL SPECIFICATIONS
Efficiency
I/O Isolation Voltage
(3 sec)
Input/Output
Metal Case/Input & Output
I/O Isolation Capacitance
I/O Isolation Resistance
Switching Frequency
Humidity
Reliability Calculated MTBF
(MIL-HDBK-217 F)
Safety Standard :
(designed to meet)
See table, typ
1500~3500Vdc
1000Vdc
500 pF Typ.
1000M Ohm
Typical 266kHz
95% rel H
>1.121 Mhrs
IEC 60950-1
The information and specifications contained in this data sheet are believed to be correct at time of publication. However,
MOTIEN Technologies
accepts no responsibility for
consequences arising from printing errors or inaccuracies. Specifications are subject to change without notice. No rights under any patent accompany the sale of any such product(s)
or information contained herein.
1
VK - 1.5W 4:1 Regulated Single & Dual output
PART NUMBER STRUCTURE
Derating Curve
VK - 24 05 S 1 H P
OUTPUT POWER
Series Name
Input Voltage Range
24
- 9 ~ 36V
48
- 18 ~ 72 V
1.5 Watt
Plastic Case.
Optional, if no
suffix “P”
mean metal Case
3.5KVdc Isolation.
Optional, if no
suffix “H”
mean1.5KVdc Isolation
Output Type
S
- Single output
D
- Dual Output
100%
75%
50%
S.O.A.
-20
0
20
40
60
80
85
Output Voltage
3R3
- 3.3V
05
- 5V
7R2
- 7.2V
09
- 9V
12
- 12V
15
- 15V
18
- 18V
24
- 24V
25%
-40
100
120
AMBIENT TEMPERATURE(°
MODEL SELECTION GUIDE
MODEL NUMBER
VK-243R3S1
VK-2405S1
VK-247R2S1
VK-2409S1
VK-2412S1
VK-2415S1
VK-2418S1
VK-2424S1
VK-243R3D1
VK-2405D1
VK-247R2D1
VK-2409D1
VK-2412D1
VK-2415D1
VK-2418D1
VK-2424D1
VK-483R3S1
VK-4805S1
VK-487R2S1
VK-4809S1
VK-4812S1
VK-4815S1
VK-4818S1
VK-4824S1
VK-483R3D1
VK-4805D1
VK-487R2D1
VK-4809D1
VK-4812D1
VK-4815D1
VK-4818D1
INPUT
Voltage Range
(Vdc)
9-36
9-36
9-36
9-36
9-36
9-36
9-36
9-36
9-36
9-36
9-36
9-36
9-36
9-36
9-36
9-36
18-72
18-72
18-72
18-72
18-72
18-72
18-72
18-72
18-72
18-72
18-72
18-72
18-72
18-72
18-72
INPUT Current
No-Load
Full Load
(mA)
(mA)
15
83.3
15
15
15
15
15
15
15
15
15
15
15
15
15
15
15
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
82.2
80.1
80.1
80.1
80.1
80.1
80.1
83.3
82.2
80.1
80.1
80.1
80.1
80.1
80.1
41.6
41.1
40.1
40.1
40.1
40.1
40.1
40.1
41.6
41.1
40.1
40.1
40.1
40.1
40.1
OUTPUT
Voltage
(Vdc)
3.3
5
7.2
9
12
15
18
24
3.3
5
7.2
9
12
15
18
24
3.3
5
7.2
9
12
15
18
24
3.3
5
7.2
9
12
15
18
24
OUTPUT Current
Min. load
Full load
(mA)
(mA)
0
454
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
32
32
454
300
208
167
125
100
83
63
227
150
104
84
63
50
300
208
167
125
100
83
63
227
150
104
84
63
50
EFFICIENCY
@FL(%)
75
76
78
78
78
78
78
78
75
76
78
78
78
78
78
78
75
76
78
78
78
78
78
78
75
76
78
78
78
78
78
78
Capacitor
Load(uF)
330
220
68
68
47
22
22
10
100
100
33
33
22
10
10
10
330
220
68
68
47
22
22
10
100
100
33
33
22
10
10
10
VK-4824D1
18-72
12
40.1
Suffix
“H”
means 3.5KVdc isolation
Suffix
“P”
means Plastic case instead of standard Metal Case
The models listed above is just for standard type. If you need the special specification product, please contact our service member by telephone presented in shortform cover or e-mail
to : sales@motien.com.tw
2
VK - 1.5W 4:1 Regulated Single & Dual output
NOTE
1.
Ripple/Noise measured with a 1uF ceramic capacitor.
2. Test by nominal input voltage and constant resistor load.
3. Measured Input reflected ripple current with a simulated source inductance of 12uH.
4. It’s recommended to add (C1, C2, L) in input end to achieve EN55022 conducted Class A.
5. An external filter capacitor is required if the module has to meet IEC61000-4-5.
The filter capacitor Motien suggest: Nippon - chemi - con KY series, 220uF/100V.
6. Exceeding the absolute ratings of the unit could cause damage. It is not allowed for continuous operating.
TEST CONFIGURATIONS
NOTE
Output Ripple & Noise Measurement Test
Copper Strip
+Vout
Use a capacitor Cout(1.0uF) measurement.
The Scope measurement bandwidth is 0-20MHz.
Single
DC/DC
Converter
-Vout
1uF
Cout
Scope
Resistive
Load
Input Reflected Ripple Current Test Step
Input reflected ripple current is measured through
a source inductor Lin(12uH) and a source capacitor
Cin(47uF, ESR<1.0Ù
at 100KHz) at nominal input and
full load.
+Vout
Lin
Current
Probe
Cin
+Vin
DC/DC
Converter
-Vin
-Vout
Load
EMI Filter
+Vout
L
+Vin
C2
Input filter components (C1,C2, L) are used to help
meet conducted emissions requirement for the module.
These components should be mounted as close as
possible to the module; and all leads should be minimized
to decrease radiated noise.
C1
DC/DC
Converter
-Vin
-Vout
Load
C1
68uF, 100V
L
12uH
C2
33uF, 100V
ELECTRICAL CHARACTERISTIC CURVES
EFFICIENCY VS OUTPUT CURRENT
90
85
80
Efficiency(%)
EFFICIENCY VS OUTPUT CURRENT
90
85
80
75
70
65
60
55
50
0%
Lo Line
Nominal
Hi Line
Efficiency(%)
Lo Line
75
70
65
60
55
50
Nominal
Hi Line
20%
40%
60%
Load
80%
100%
120%
0%
20%
40%
60%
Load
80%
100%
120%
24 Models
48 Models
The models listed above is just for standard type. If you need the special specification product, please contact our service member by telephone presented in shortform cover or e-mail
to : sales@motien.com.tw
3
VK - 1.5W 4:1 Regulated Single & Dual output
MECCHANICAL SPECIFICATIONS
31.75
(1.25)
22.86
(0.9)
PIN CONNECTIONS
PIN NUMBER
SINGLE
V Input
V Input
N.P.
N.C.
DUAL
V Input
V Input
Common
V Output
+V Output
Common
9
11
DC-DC CONVERTER
VK-XXXXXX
MOTIEN
xxxx
Printed Face
DIA
0.50
(0.02)
2 3
2
20.32
(0.8)
Bottom View
23 22
16
14
15.24
(0.60)
3
9
Built-in stand-offs
help air convection
2.54
(0.10)
11
14
16
22
24 Pin DIL Package
10.16
(0.40)
+
V Output
V Output
Nickel-Coated Copper
3.00
(0.12)
+
V Input
+
V Input
+
V Input
+
V Input
Notes: All dimensions are typical in millimeters ( inches ).
1. Pin diameter: 0.5
±0.05
( 0.02
±0.002
)
2. Pin pitch and length tolerance:
±0.35
(
±0.014
)
3. Case Tolerance:
±0.5
(
±0.02
)
23
The Pin Connection of high isolation one is the same with normal one.
31.75
(1.25)
Printed Face
10.16
(0.40)
PIN CONNECTIONS
PIN NUMBER
2
SINGLE
V Input
V Input
N.P.
N.C.
DUAL
V Input
V Input
Common
V Output
+V Output
Common
20.32
(0.80)
DC-DC CONVERTER
VK-XXXXXXP
MOTIEN
XXXX
3.00
(0.12)
3
9
22.86
(0.9)
0.50
(0.02)
2 3
9
11
For
“P”
Case
15.24
(0.60)
14
11
14
+
V Output
V Output
Bottom View
23 22
16
24 Pin DIL Package
Non-Conductive Plastic
Notes: All dimensions are typical in millimeters ( inches ).
1. Pin diameter: 0.5
±0.05
( 0.02
±0.002
)
2. Pin pitch and length tolerance:
±0.35
(
±0.014
)
3. Case Tolerance:
±0.5
(
±0.02
)
16
22
+
V Input
+
V Input
+
V Input
+
V Input
0.50
(0.02)
5.08
(0.20)
23
The Pin Connection of high isolation one is the same with normal one.
MOTIEN
ISO 9001 . ISO 14001 . IECQ QC-080000
DRAWING:
APPROVED:
No. 9, Keji 2nd Rd.,
Tainan Tec
hnology Industrial Park, Tainan City 70955, Taiwan
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