VM Series
Features
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MOTIEN
TECHNOLOGY
25/30W 2:1 Regulated Single & Dual output
Wide 2:1 Input Range
Full SMD Technology
1500 VDC Isolation
Efficiency up to 91%
-40 ~ 85°C Operation Temperature Range
Adjustable Output Voltage
Remote On/Off Control (CTRL)
Continuous Short Circuit Protection
Over Current Protection
Over Voltage Protection
Over Temperature Protection
Soft Start
25
5
CB
he VM series is a family of cost effective 25/30W single & dual output DC-DC converters. These converters combine nickle-coated
copper package in a 2"x1.6" case with high performance features such as Active Clamp Technology, continuous short circuit protection
with automatic restart and tight line / load regulation. Devices are encapsulated using flame retardant resin. Input voltages of 12,24 and 48
with output voltage of 3.3 , 5, 12, 15,
±12, ±15Vdc.
High performance features include high efficiency operation up to 91% and output
voltage accuracy of
±1%
maximum.
ALL SPECIFICATIONS ARE TYPICAL AT 25
°
C, NOMINAL INPUT AND FULL LOAD UNLESS OTHERWISE NOTED.
OUTPUT SPECIFICATIONS
Output Voltage Accuracy
Output Voltage Adjustability(Trim)
Maximum Output Current
Line Regulation
Load Regulation( Io=10% to 100%) (1)
Cross Regulation (Dual Output) (2)
Ripple&Noise (3)
3.3V output
5V output
Over Voltage Protection
12V output
( Zener diode clamp)
15V output
12V output
15V output
Over Current Protection
Short Circuit Protection
Temperature Coefficient
Capacitive Load (4)
Transient Recovery Time (5)
Transient Response Deviation(5)
±1%
±10%,
max
See table
±0.5%,
max
±0.5%,
max
±5%
75mVpk-pk, max
3.9V
6.2V
15V
18V
±15V
±18V
120% of FL, typ
Indefinite(hiccup)
(Automatic Recovery)
±0.02%/°C
See table
200us, typ
±3%,
max
GENERAL SPECIFICATIONS
Efficiency
I/O Isolation Voltage
(3 sec)
Input/Output
Case/Input & Output
Isolation Resistance
Isolation Capacitance
Switching frequency
Humidity
Reliability Calculated MTBF
(MIL-HDBK-217 F)
Safety Standard
Safety Approvals
EMC CHARACTERISTICS
Radiated Emissions
Conducted Emissions(7)
ESD
RS
EFT(8)
Surge (8)
CS
PFMF
See table, typ
1500Vdc
1000Vdc
1000 M
Ù
, min
1200 pF, typ
270kHz, typ
95% rel H
>1 Mhrs
IEC/EN 60950-1
TUV,CB
T
EN55022
EN55022
EN61000-4-2
EN61000-4-3
EN61000-4-4
EN61000-4-5
EN61000-4-6
EN61000-4-8
CLASS A
CLASS A
Perf. Criteria B
Perf. Criteria A
Perf. Criteria B
Perf. Criteria B
Perf. Criteria A
Perf. Criteria A
INPUT SPECIFICATIONS
See table
Input Voltage Range
Under Voltage Lockout
8.6Vdc / 7.9Vdc, typ
12V Modes
Module
ON / OFF
17.6Vdc / 16Vdc, typ
24V Modes
Module
ON / OFF
33.5Vdc / 30.5Vdc, typ
48V Modes
Module
ON / OFF
20mS, typ
Start up Time
(Nominal Vin and constant resistive load)
Pi Type
Input Filter
See table, typ
Input Current(No-Load)
See table, max
Input Current(Full-Load)
20mApk-pk, typ
Input Reflected Ripple Current(6)
Remote On/Off (CTRL)
ON: 2.5 ... 5.5Vdc or open circuit
OFF: -0.7 ... 0.8Vdc or Short circuit pin2 and pin 3
OFF idle current: 2.5 mA, typ
PHYSICAL SPECIFICATIONS
Case Material
Pin Material
Potting Material
Weight
Dimensions
ENVIRONMENTAL SPECIFICATIONS
-40°C ~ +85°C
(See Derating Curve)
Operating Ambient Temperature
-40°C ~ +60°C
(For 100% load)
100°C
Maximum Case Temperature
-40°C ~ +125°C
Storage Temperature
110°C, typ
Over Temperature Protection (Case)
Nature Convection
Cooling
ABSOLUTE SPECIFICATIONS (9)
These are stress ratings. Exposure of devices to any of these
conditions may adversely affect long-term reliability.
Input Voltage
(100mS)
-0.7~25 Vdc
12 Modes
-0.7~50 Vdc
24 Modes
-0.7~100 Vdc
48 Modes
260°C max
Lead Soldering Temperature
(1.5mm from case 10 sec. Max.)
Nickel-coated Copper
¨1.0mm
Brass Solder-coated
Epoxy (UL94V-0 rated)
48.0g
2.00"x1.60"x0.40"
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
VM - 25/30W 2:1 Regulated Single & Dual output
PART NUMBER STRUCTURE
Derating Curve
VM - 2 4 12 S 30
OUTPUT POWER
Series Name
Input Voltage Range
12
- 9 ~ 18V
24
- 18 ~ 36 V
48
- 36 ~ 75 V
Watt
Output Type
S
- Single output
D
- Dual Output
100%
75%
50%
S.O.A.
-20
0
20
40
60
80
85
100
120
AMBIENT TEMPERATURE(°
Nominal Output Voltage
3R3
- 3.3V
5
- 5V
12
- 12V
15
- 15V
25%
-40
MODEL SELECTION GUIDE
MODEL NUMBER
VM-123R3S25
VM-1205S25
VM-1212S30
VM-1215S30
VM-243R3S25
VM-2405S25
VM-2412S30
VM-2415S30
VM-483R3S25
VM-4805S25
VM-4812S30
VM-4815S30
VM-1212D30
VM-1215D30
VM-2412D30
VM-2415D30
VM-4812D30
VM-4815D30
INPUT
Voltage Range
(Vdc)
9-18
9-18
9-18
9-18
18-36
18-36
18-36
18-36
36-75
36-75
36-75
36-75
9-18
9-18
18-36
18-36
36-75
36-75
INPUT Current
No-Load
Full Load
(mA)
(mA)
30
1867
30
30
30
25
25
25
25
20
20
20
20
30
30
25
25
20
20
2480
2841
2841
922
1225
1404
1404
461
613
702
702
2841
2841
1404
1404
710
710
OUTPUT
Voltage
(Vdc)
3.3
5
12
15
3.3
5
12
15
3.3
5
12
15
12
15
12
15
12
15
OUTPUT Current
Min. load
Full load
(mA)
(mA)
0
5500
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5000
2500
2000
5500
5000
2500
2000
5500
5000
2500
2000
1250
1000
1250
1000
1250
1000
EFFICIENCY
@FL(%)
83
86
90
90
84
87
91
91
84
87
91
91
90
90
91
91
90
90
Capacitor
Load(uF)
15000
10000
2200
1000
15000
10000
2200
1000
15000
10000
2200
1000
1000
680
1000
680
1000
680
NOTE
1.
2.
3.
4.
5.
6.
7.
Operation between no-load and 10% load conditions will not damage the module, but it may not meet all specifications listed.
One load is 25% to 100% load, the other load is 100% load, the output voltage variable rate is within
±5%.
Measured with 20MHz bandwidth and 1.0uF ceramic capacitor.
Tested by minimal Vin and constant resistive load.
Tested by normal Vin and 25% load step change ( 75%-50%-25% of Io ).
Measured Input reflected ripple current with a simulated source inductance of 12uH.
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.
8. An external filter capacitor is required if the module has to meet EN61000-4-4 and EN61000-4-5.
The filter capacitor Motien suggest: Nichicon FW series, 1000uF/100V.
9. Exceeding the absolute ratings of the unit could cause damage.
It is not allowed for continuous operating.
+Vout
L
C1
C2
+Vin
DC/DC
Converter
-Vin
C3
-Vout
Load
C1
VM-12XXXXX
VM-24XXXXX
VM-48XXXXX
330uF, 100V
330uF, 100V
330uF, 100V
L
12uH
12uH
12uH
C2
100uF,100V
100uF,100V
100uF,100V
C3
N/A
N/A
1000pF/2KV
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
VM - 25/30W 2:1 Regulated Single & Dual output
VM-1215S30
EFFICIENCY VS OUTPUT CURRENT
92
92
VM-2412S30
EFFICIENCY VS OUTPUT CURRENT
Nominal
90
90
Nominal
Lo Line
Hi Line
Efficiency(%)
88
86
84
82
80
0%
20%
40%
60%
Load
Efficiency(%)
120%
Lo Line
Hi Line
88
86
84
82
80
80%
100%
0%
20%
40%
60%
Load
80%
100%
120%
VM-4805S25
EFFICIENCY VS OUTPUT CURRENT
90
87
92
VM-2412D30
EFFICIENCY VS OUTPUT CURRENT
Nominal
Efficiency(%)
90
Nominal
Lo Line
Hi Line
Efficiency(%)
84
81
78
75
72
0%
20%
40%
60%
Load
Lo Line
Hi Line
88
86
84
82
80
80%
100%
120%
0%
20%
40%
60%
Load
80%
100%
120%
MECHANICAL SPECIFICATIONS
40.6
(1.6)
5.1
(0.2)
4
10.16
(0.4)
5
10.16
(0.4)
6
10.16
(0.4)
7
DIA
1.00
(0.04)
10.2
(0.40)
PIN CONNECTIONS
PIN NUMBER
Print Face
SINGLE
+Vin
-Vin
CTRL
No pin
+Vout
-Vout
Trim
DUAL
+Vin
-Vin
CTRL
+Vout
Com
-Vout
Trim
1
2
3
45.72
(1.8)
50.8
(2.0)
Bottom View
Built-in stand-offs
to ease PCB Cleaning
4
5
6
1
2
3
7
5.08
(0.20)
Min.
5.08
(0.2)
12.7
(0.5)
10.16
(0.4)
2.5
(0.1)
EXTERNAL OUTPUT TRIMMING
Output can be externally trimmed by using
the method as below. ( ) for dual output trim.
Rtrim-up
7(7)
Rtrim-down
7(7)
All dimensions are typical in millimeters ( inches ).
1. Pin diameter: 1.0
±0.05
( 0.04
±0.002
)
2. Pin pitch tolerance:
±0.35
(
±0.014
)
3. Case Tolerance:
±0.5
(
±0.02
)
6(6)
5(4)
MOTIEN
ISO 9001:2000 REGISTERED
No. 9, Keji 2nd Rd., Technology Industrial Park, Tainan City 70955, Taiwan
Te l : 886-6-384 2366 (Rep.)
Fax: 886-6-384 2399
Website : www.motien.com.tw Email : sales@motien.com.tw
Last Update : Dec.21.2007
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