Dual Output
+Vo
PFM Isolation Ref.Amp
LC
Filter
+Vin
-Vin
Com.
-Vo
Single Output
PFM Isolation Ref.Amp
LC
Filter
+Vin
-Vin
-Vo
+Vo
Block Diagram
Wide Range
2:1
Low Profile
I/O Isolation
1500
VDC
SMD
EN55022
EMI
Low Cost
$
Low Noise
Minmax's MSDW1000 2W DC/DC's are in "gull-wing" SMT package and
meet 245]/10sec in solder-reflow for lead free process.
The series consists of 28 models that operate over input voltage ranges of
4.5-9VDC, 9-18VDC, 18-36VDC and 36-75VDC which provide precisely
regulated output voltages of 3.3V, 5V, 12V, 15V, {5V, {12V and {15VDC.
The -40] to +71] operating temperature range makes it ideal for data
communication equipments, mobile battery driven equipments, distributed
power systems, telecommunication equipments, mixed analog/digital
subsystems, process/machine control equipments, computer peripheral
systems and industrial robot systems.
The modules have a maximum power rating of 2W and a typical full-load
efficiency of 81%, continuous short circuit, 30mV output ripple, EN55022 Class
A conducted noise compliance minimize design-in time, cost and eliminate the
need for external filtering.
yInternal SMD Construction
yUL 94V-0 Package Material
yComplies with EN55022 Class A
yTemperature Performance -40] to +71]
yLow Ripple and Noise
yLow Cost
y2:1 Wide Input Range
yMTBF > 1,000,000 Hours
y1500VDC Isolation
yEfficiency up to 81%
Key Features
2W, Wide Input Range SMD, Single & Dual Output DC/DC Converters
MSDW1000 Series
REV:1 2006/03
MINMAX
1
7757{17{67{15MSDW1047
7757{21{83{12MSDW1046
7162{50{200{5MSDW1045
79553313415MSDW1044
79534216712MSDW1043
73571004005MSDW1042
71
108
491255003.3
48
( 36 ~ 75)
MSDW1041
80110{17{67{15MSDW1037
78112{21{83{12MSDW1036
74119{50{200{5MSDW1035
811083313415MSDW1034
801094216712MSDW1033
771091004005MSDW1032
72
1510
961255003.3
24
( 18 ~ 36 )
MSDW1031
78226{17{67{15MSDW1027
78224{21{83{12MSDW1026
73242{50{200{5MSDW1025
802203313415MSDW1024
802094216712MSDW1023
772171004005MSDW1022
73
2520
1841255003.3
12
( 9 ~ 18 )
MSDW1021
71598{17{67{15MSDW1017
69615{21{83{12MSDW1016
64667{50{200{5MSDW1015
735823313415MSDW1014
755344216712MSDW1013
735481004005MSDW1012
70
10040
4711255003.3
5
( 4.5 ~ 9 )
MSDW1011
% (Typ.)mA (Typ.)mA (Typ.)mA (Typ.)mAmAVDCVDC
@Max. Load@No Load@Max. LoadMin.Max.
EfficiencyReflected
Ripple
Current
Input CurrentOutput CurrentOutput
Voltage
Input
Voltage
Model
Number
Model Selection Guide
EN55022 Class AConducted EMI
Free-Air ConvectionCooling
%95---Humidity
]+125-40Storage Temperature
]+90-40CaseOperating Temperature
]+71-40AmbientOperating Temperature
UnitMax.Min.ConditionsParameter
Environmental Specifications
Exceeding the absolute maximum ratings of the unit could cause damage.
These are not continuous operating ratings.
mW1,800---Internal Power Dissipation
]260---Lead Temperature (1.5mm from case for 10 Sec.)
VDC100-0.748VDC Input Models
VDC50-0.724VDC Input Models
VDC25-0.712VDC Input Models
VDC11-0.75VDC Input Models
Input Surge Voltage
( 1000 mS )
UnitMax.Min.Parameter
Notes :
1. Specifications typical at Ta=+25], resistive load,
nominal input voltage, rated output current unless
otherwise noted.
2. Transient recovery time is measured to within 1%
error band for a step change in output load of 75%
to 100%.
3. Ripple & Noise measurement bandwidth is 0-20
MHz.
4. These power converters require a minimum
output loading to maintain specified regulation.
5. Operation under no-load conditions will not
damage these modules; however, they may not
meet all specifications listed.
6. All DC/DC converters should be externally fused
on the front end for protection.
7. Other input and output voltage may be available,
please contact factory.
8. Specifications subject to change without notice.
Absolute Maximum Ratings
MSDW1000 Series
2
MINMAX
REV:1 2006/03
K Hours------1000MIL-HDBK-217F @ 25], Ground BenignMTBF
KHz---300---Switching Frequency
pF420250---100KHz,1VIsolation Capacitance
M[------1000500VDCIsolation Resistance
VDC------1650Flash Tested for 1 SecondIsolation Voltage Test
VDC------150060 SecondsIsolation Voltage Rated
UnitMax.Typ.Min.ConditionsParameter
General Specifications
ContinuousOutput Short Circuit
%/]{0.02{0.01---Temperature Coefficient
%{5{3---Transient Response Deviation
uS300100---
25% Load Step Change
Transient Recovery Time
%------120Over Power Protection
mV rms15------Ripple & Noise (20MHz)
mV P-P75------Over Line, Load & Temp.Ripple & Noise (20MHz)
mV P-P5030---Ripple & Noise (20MHz)
%{0.75{0.5---Io=25% to 100%Load Regulation
%{0.5{0.3---Vin=Min. to Max.Line Regulation
%{2.0{1.0---Dual Output, Balanced LoadsOutput Voltage Balance
%{2.0{1.0---Output Voltage Accuracy
UnitMax.Typ.Min.ConditionsParameter
Output Specifications
Pi FilterInput Filter
mW1500------Short Circuit Input Power
A1------
All Models
Reverse Polarity Input Current
3422---48V Input Models
1711---24V Input Models
8.56.5---12V Input Models
43.5---5V Input Models
Under Voltage Shutdown
36241648V Input Models
1812824V Input Models
974.512V Input Models
VDC
4.543.55V Input Models
Start Voltage
UnitMax.Typ.Min.ModelParameter
Input Specifications
# For each output
uF4710047011017010002200Maximum Capacitive Load
Unit
{15V #{12V #{5V #
15V12V5V3.3VModels by Vout
Capacitive Load
MSDW1000 Series
REV:1 2006/03
MINMAX
3
120mA Slow - Blow Type250mA Slow - Blow Type500mA Slow - Blow Type1000mA Slow - Blow Type
48V Input Models24V Input Models12V Input Models5V Input Models
Input Fuse Selection Guide
Vin ( VDC )
10uS
150
140
130
120
110
100
90
80
70
60
100uS 1mS 10mS 100mS
50
40
30
20
10
0
48VDC Input Models
24VDC Input Models
12VDC Input Models
5VDC Input Models
Input Voltage Transient Rating
MSDW1000 Series
4
MINMAX
REV:1 2006/03
Derating Curve
〜
]
Ambient Temperature
Output Power (%)
0
20
40
60
80
100
-40 50 60 80 100 1109070
400LFM
200LFM
100LFM
Natural
convection
Efficiency vs Output Load ( Dual Output )Efficiency vs Output Load ( Single Output )
20
30
40
50
60
70
80
90
Load Current (%)
Efficiency (%)
100
60402010 80
20
30
40
50
60
70
80
90
Load Current (%)
Efficiency (%)
100
60402010 80
Efficiency vs Input Voltage ( Dual Output )Efficiency vs Input Voltage ( Single Output )
50
60
70
80
90
100
Efficiency (%)
Input Voltage (V)
NomLow High
50
60
70
80
90
100
Efficiency (%)
Input Voltage (V)
NomLow High
MSDW1000 Series
REV:1 2006/03
MINMAX
5
Test Configurations
Input Reflected-Ripple Current Test Setup
Input reflected-ripple current is measured with a inductor
Lin (4.7uH) and Cin (220uF, ESR < 1.0[ at 100 kHz) to
simulated source impedance.
Capacitor Cin, offsets possible battery impedance.
Current ripple is measured at the input terminals of the
module, measurement bandwidth is 0-500KHz.
Peak-to-Peak Output Noise Measurement Test
Use a Cout 0.47uF ceramic capacitor.
Scope measurement should be made by using a BNC
socket, measurement bandwidth is 0-20 MHz. Position the
load between 50 mm and 75 mm from the DC/DC Converter.
Design & Feature Considerations
Maximum Capacitive Load
The MSDW1000 series has limitation of maximum
connected capacitance on the output.
The power module may operate in current limiting mode
during start-up, affecting the ramp-up and the startup time.
The maximum capacitance can be found in the data sheet.
Overcurrent Protection
To provide protection in a fault (output overload) condition,
the unit is equipped with internal current limiting circuitry and
can endure current limiting for an unlimited duration. At the
point of current-limit inception, the unit shifts from voltage
control to current control. The unit operates normally once the
output current is brought back into its specified range.
Input Source Impedance
The power module should be connected to a low
ac-impedance input source. Highly inductive source
impedances can affect the stability of the power module.
In applications where power is supplied over long lines and
output loading is high, it may be necessary to use a capacitor
on the input to insure startup.
By using a good quality low Equivalent Series Resistance
(ESR < 1.0[ at 100 kHz) capacitor of a 8.2uF for the 5V input
devices, a 3.3uF for the 12V input devices and a 1.5uF for the
24V and 48V devices, capacitor mounted close to the power
module helps ensure stability of the unit.
Output Ripple Reduction
A good quality low ESR capacitor placed as close as
practicable across the load will give the best ripple and noise
performance.
To reduce output ripple, it is recommended that 3.3uF
capacitors are used on output.
MSDW1000 Series
6
MINMAX
REV:1 2006/03
+Out
-Out
+Vin
-Vin
DC / DC
Converter Load
Battery
+ Lin+
Cin
To Oscilloscope
Current
Probe
+Out
-Out
+Vin
-Vin
Dual Output
DC / DC
Converter
Resistive
Load
Scope
Copper Strip
Cout
Com.
Scope
Cout
+Out
-Out
+Vin
-Vin
Single Output
DC / DC
Converter
Resistive
Load
Scope
Copper Strip
Cout
+
+Out
-Out
+Vin
-Vin
DC / DC
Converter Load
DC Power
Source
+
-
Cin
+Out
-Out
+Vin
-Vin Load
DC Power
Source
+
-
Cout
Com.
Dual Output
DC / DC
Converter
+Out
-Out
+Vin
-Vin
Load
DC Power
Source
+
-
Cout
Single Output
DC / DC
Converter
Thermal Considerations
Many conditions affect the thermal performance of the
power module, such as orientation, airflow over the module,
and board spacing. To avoid exceeding the maximum
temperature rating of the components inside the power
module, the case temperature must be kept below 90°C.
The derating curves were determined from measurements
obtained in an experimental apparatus.
MSDW1000 Series
REV:1 2006/03
MINMAX
7
DUT
Position of air velocity
probe and thermocouple 50mm / 2in Air Flow
15mm / 0.6in
The MSDW1000 converter is encapsulated in a low thermal resistance molding compound that has excellent resistance/electrical
characteristics over a wide temperature range or in high humidity environments.
The encapsulant and unit case are both rated to UL 94V-0 flammability specifications.
Leads are tin plated for improved solderability.
NC: No Connection
UL94V-0
:Flammability
+Vin+Vin16
3.75g
:
Weight
-Vout-Vout10
+Vout+Vout9
Non-Conductive Black Plastic
:
Case Material
CommonNC8
NCNC7
0.94*0.54*0.31 inches
-Vin-Vin1
24.0*13.7*8.0 mm
:Case Size
Dual OutputSingle OutputPin
Physical Characteristics
Pin Connections
{0.002{0.05Pin
X.XXX{0.005X.XX{0.13
X.XX{0.01X.X{0.25
InchesMillimetersTolerance
2.8mm
15.24mm
19.3mm
2.54mm
13.7mm
17.78mm
1.4mm(Min)
24 [0.94]
13.7 [0.54]
18.1 [0.71]
8 [0.31]
0.25 [0.01]
0.15
1 [0.04]
2.54 [0.10] 3.11 [0.12]
15.24 [0.60]
Connecting Pin Patterns
Top View ( 2.54 mm / 0.1 inch grids )
Mechanical Dimensions
MSDW1000 Series
8
MINMAX
REV:1 2006/03
