MDW1000 Series
2W, Wide Input Range DIP, Single & Dual Output DC/DC Converters
Key Features
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Efficiency up to 81%
1500VDC Isolation
MTBF > 1,000,000 Hours
2:1 Wide Input Range
CSA1950 Safety Approval
Low Ripple and Noise
Short Circuit Protection
Complies with EN55022 Class A
UL 94V-0 Package Material
Internal SMD Construction
Minmax's MDW1000-Series power modules are low-profile
dc-dc converters that operate over input voltage ranges of
EMI
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.
Low Noise
EN55022
The MDW1000 series is an excellent selection for data
communication equipments, mobile battery driven equipments,
distributed power systems, telecommunication equipments, mixed
analog/digital subsystems, process/machine control equipments,
1500
VDC
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
I/O Isolation
ripple, built-in filtering for both input and output minimize the need for
2:1
Low Profile
Wide Range
external filtering.
Block Diagram
Single Output
+Vin
Dual Output
+Vo
LC
Filter
+Vin
+Vo
LC
Filter
Com.
-Vo
-Vin
1
PFM
Isolation
Ref.Amp
-Vo
-Vin
MINMAX
PFM
Isolation
Ref.Amp
REV:1 2006/03
MDW1000 Series
Model Selection Guide
Model
Number
MDW1011
MDW1012
MDW1013
MDW1014
MDW1015
MDW1016
MDW1017
MDW1021
MDW1022
MDW1023
MDW1024
MDW1025
MDW1026
MDW1027
MDW1031
MDW1032
MDW1033
MDW1034
MDW1035
MDW1036
MDW1037
MDW1041
MDW1042
MDW1043
MDW1044
MDW1045
MDW1046
MDW1047
Input
Voltage
Output
Voltage
VDC
VDC
3.3
5
12
15
{5
{12
{15
3.3
5
12
15
{5
{12
{15
3.3
5
12
15
{5
{12
{15
3.3
5
12
15
{5
{12
{15
5
( 4.5 ~ 9 )
12
( 9 ~ 18 )
24
( 18 ~ 36 )
48
( 36 ~ 75 )
Output Current
Max.
mA
500
400
167
134
{200
{83
{67
500
400
167
134
{200
{83
{67
500
400
167
134
{200
{83
{67
500
400
167
134
{200
{83
{67
Input Current
Min.
mA
125
100
42
33
{50
{21
{17
125
100
42
33
{50
{21
{17
125
100
42
33
{50
{21
{17
125
100
42
33
{50
{21
{17
Absolute Maximum Ratings
Min.
-0.7
-0.7
-0.7
-0.7
-----
Max.
11
25
50
100
260
1,800
Unit
VDC
VDC
VDC
VDC
]
mW
Exceeding the absolute maximum ratings of the unit could cause damage.
These are not continuous operating ratings.
Environmental Specifications
REV:1 2006/03
@No Load
mA (Typ.)
mA (Typ.)
40
100
20
25
10
15
8
10
Efficiency
@Max. Load
% (Typ.)
70
73
75
73
64
69
71
73
77
80
80
73
78
78
72
77
80
81
74
78
80
71
73
79
79
71
77
77
NoteS :
Parameter
5VDC Input Models
12VDC Input Models
Input Surge Voltage
( 1000 mS )
24VDC Input Models
48VDC Input Models
Lead Temperature (1.5mm from case for 10 Sec.)
Internal Power Dissipation
Parameter
Operating Temperature
Operating Temperature
Storage Temperature
Humidity
Cooling
Conducted EMI
@Max. Load
mA (Typ.)
471
548
534
582
667
615
598
184
217
209
220
242
224
226
96
109
109
108
119
112
110
49
57
53
55
62
57
57
Reflected
Ripple
Current
Conditions
Ambient
Case
Min.
Max.
-40
+65
-40
+90
-40
+125
--95
Free-Air Convection
EN55022 Class A
Unit
]
]
]
%
MINMAX
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.
2
MDW1000 Series
Input Specifications
Parameter
Start Voltage
Model
Under Voltage Shutdown
Min.
Max.
4.5
5V Input Models
3.5
4
12V Input Models
4.5
7
9
24V Input Models
8
12
18
Unit
48V Input Models
16
24
36
5V Input Models
---
3.5
4
12V Input Models
---
6.5
8.5
24V Input Models
---
11
17
48V Input Models
---
22
34
---
---
1
A
---
---
1500
mW
Reverse Polarity Input Current
Short Circuit Input Power
Typ.
All Models
Input Filter
VDC
Pi Filter
Output Specifications
Parameter
Conditions
Min.
Typ.
Max.
Unit
---
{1.0
{2.0
%
Dual Output, Balanced Loads
---
{1.0
{2.0
%
Line Regulation
Vin=Min. to Max.
---
{0.3
{0.5
%
Load Regulation
Io=25% to 100%
---
{0.5
{0.75
%
---
30
50
mV P-P
Output Voltage Accuracy
Output Voltage Balance
Ripple & Noise (20MHz)
---
---
75
mV P-P
Ripple & Noise (20MHz)
Ripple & Noise (20MHz)
Over Line, Load & Temp.
---
---
15
mV rms
Over Power Protection
120
---
---
%
Transient Recovery Time
---
100
300
uS
25% Load Step Change
Transient Response Deviation
Temperature Coefficient
Output Short Circuit
---
{3
{5
%
---
{0.01
{0.02
%/]
Continuous
General Specifications
Parameter
Conditions
Min.
Typ.
Max.
Unit
Isolation Voltage Rated
60 Seconds
1500
---
---
VDC
Isolation Voltage Test
Flash Tested for 1 Second
1650
---
---
VDC
Isolation Resistance
500VDC
1000
---
---
M[
Isolation Capacitance
100KHz,1V
---
250
420
pF
---
300
---
KHz
1000
---
---
K Hours
Switching Frequency
MTBF
MIL-HDBK-217F @ 25], Ground Benign
Capacitive Load
Models by Vout
3.3V
5V
12V
15V
{5V #
{12V #
{15V #
Unit
Maximum Capacitive Load
2200
1000
170
110
470
100
47
uF
# For each output
3
MINMAX
REV:1 2006/03
MDW1000 Series
Input Fuse Selection Guide
5V Input Models
12V Input Models
24V Input Models
48V Input Models
1000mA Slow - Blow Type
500mA Slow - Blow Type
250mA Slow - Blow Type
120mA Slow - Blow Type
Input Voltage Transient Rating
150
140
130
120
48VDC Input Models
110
Vin ( VDC )
100
90
80
70
24VDC Input Models
60
50
40
12VDC Input Models
30
20
5VDC Input Models
10
0
10uS
REV:1 2006/03
100uS
1mS
MINMAX
10mS
100mS
4
100
100
90
90
Efficiency (%)
Efficiency (%)
MDW1000 Series
80
70
80
70
60
60
50
50
Low
Nom
Low
High
Nom
Input Voltage (V)
Efficiency vs Input Voltage ( Dual Output )
90
90
80
80
70
70
Efficiency (%)
Efficiency (%)
Efficiency vs Input Voltage ( Single Output )
60
50
40
60
50
40
30
20
High
Input Voltage (V)
30
10
20
40
60
80
100
20
Load Current (%)
Efficiency vs Output Load ( Single Output )
10
20
40
60
Load Current (%)
80
100
Efficiency vs Output Load ( Dual Output )
100
Output Power (%)
400LFM
100LFM
80
200LFM
Natural
convection
60
40
20
0
〜
-40
50
60
70
80
Ambient Temperature
90
100
110
]
Derating Curve
5
MINMAX
REV:1 2006/03
MDW1000 Series
Test Configurations
Overcurrent Protection
Input Reflected-Ripple Current Test Setup
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 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.
To Oscilloscope
+
Battery
+
+Vin
Lin
Current
Probe
Cin
-Vin
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.
+Out
DC / DC
Converter
Load
-Out
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.
+Vin
+Out
Single Output
DC / DC
Converter
-Vin
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.
+
DC Power
Source
Copper Strip
Cout
Input Source Impedance
Scope
+Vin
+
DC / DC
Converter
Load
Cin
-
Resistive
Load
+Out
-Vin
-Out
-Out
Output Ripple Reduction
+Vin
+Out
Dual Output
DC / DC
Converter
Com.
-Vin
-Out
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.
Copper Strip
Cout
Scope
Cout
Scope
Resistive
Load
+
Maximum Capacitive Load
The MDW1000 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.
Cout
-
-Vin
-Out
+
+Vin
+Out
Dual Output
DC / DC Com.
Converter
DC Power
Source
-
MINMAX
+Out
Single Output
DC / DC
Converter
DC Power
Source
Design & Feature Considerations
REV:1 2006/03
+Vin
-Vin
-Out
Load
Cout
Load
6
MDW1000 Series
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.
Position of air velocity
probe and thermocouple
15mm / 0.6in
7
50mm / 2in
Air Flow
DUT
MINMAX
REV:1 2006/03
MDW1000 Series
Mechanical Dimensions
Connecting Pin Patterns
Top View ( 2.54 mm / 0.1 inch grids )
Single Output
Side
7.62[0.3]
0.5[0.02]
23.8[0.94]
3.2[0.13]
0.5[0.02]
7
8
10
9
10.16[0.4]
1
Bottom
16
Tolerance
Pin
Millimeters
Inches
X.X{0.25
X.XX{0.01
X.XX{0.13
{0.05
X.XXX{0.005
{0.002
Dual Output
13.7[0.54]
2.54[0.1]
Pin Connections
Physical Characteristics
Pin
Single Output
Dual Output
1
-Vin
-Vin
7
NC
NC
8
NC
Common
9
+Vout
+Vout
10
-Vout
-Vout
16
+Vin
+Vin
23.8*13.7*7.62 mm
Case Size
:
Case Material
:
Non-Conductive Black Plastic
Weight
:
5.1g
Flammability
:
UL94V-0
0.94*0.54*0.30 inches
NC: No Connection
The MDW1000 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.
REV:1 2006/03
MINMAX
8