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MDW1000 Series
2W, Wide Input Range DIP, Single & Dual Output DC/DC Converters
Key Features
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 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 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, 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, built-in filtering for both input and output minimize the need for external filtering.
I/O Isolation
Low Noise
EMI
EN55022
1500 VDC
Low Profile
2:1
Wide Range
Block Diagram
Single Output Dual Output
+Vin
LC Filter
+Vo
+Vin
LC Filter
+Vo Com.
-Vo PFM Isolation Ref.Amp PFM Isolation Ref.Amp
-Vo
-Vin
-Vin
1
MINMAX
REV:1 2006/03
MDW1000 Series
Model Selection Guide
Model Number Input Voltage VDC 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 Output Voltage 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 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 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 Input Current @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 @No Load mA (Typ.) Reflected Ripple Current mA (Typ.) 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
5 ( 4.5 ~ 9 )
40
100
12 ( 9 ~ 18 )
20
25
24 ( 18 ~ 36 )
10
15
48 ( 36 ~ 75 )
8
10
Absolute Maximum Ratings
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 Min. -0.7 -0.7 -0.7 -0.7 ----Max. 11 25 50 100 260 1,800 Unit VDC VDC VDC VDC ] mW
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.
Exceeding the absolute maximum ratings of the unit could cause damage. These are not continuous operating ratings.
Environmental Specifications
Parameter Operating Temperature Operating Temperature Storage Temperature Humidity Cooling Conducted EMI Conditions Ambient Case Min. Max. -40 +65 -40 +90 -40 +125 --95 Free-Air Convection EN55022 Class A Unit ] ] ] %
REV:1 2006/03
MINMAX
2
MDW1000 Series
Input Specifications
Parameter Start Voltage Model 5V Input Models 12V Input Models 24V Input Models 48V Input Models Under Voltage Shutdown 5V Input Models 12V Input Models 24V Input Models 48V Input Models Reverse Polarity Input Current Short Circuit Input Power Input Filter All Models Min. 3.5 4.5 8 16 ------------Typ. 4 7 12 24 3.5 6.5 11 22 ----Pi Filter Max. 4.5 9 18 36 4 8.5 17 34 1 1500 A mW VDC Unit
Output Specifications
Parameter Output Voltage Accuracy Output Voltage Balance Line Regulation Load Regulation Ripple & Noise (20MHz) Ripple & Noise (20MHz) Ripple & Noise (20MHz) Over Power Protection Transient Recovery Time Transient Response Deviation Temperature Coefficient Output Short Circuit 25% Load Step Change Over Line, Load & Temp. Dual Output, Balanced Loads Vin=Min. to Max. Io=25% to 100% Conditions Min. --------------120 ------Continuous Typ. {1.0 {1.0 {0.3 {0.5 30 ------100 {3 {0.01 Max. {2.0 {2.0 {0.5 {0.75 50 75 15 --300 {5 {0.02 Unit % % % % mV P-P mV P-P mV rms % uS % %/]
General Specifications
Parameter Isolation Voltage Rated Isolation Voltage Test Isolation Resistance Isolation Capacitance Switching Frequency MTBF MIL-HDBK-217F @ 25], Ground Benign Conditions 60 Seconds Flash Tested for 1 Second 500VDC 100KHz,1V Min. 1500 1650 1000 ----1000 Typ. ------250 300 --Max. ------420 ----Unit VDC VDC M[ pF KHz K Hours
Capacitive Load
Models by Vout Maximum Capacitive Load # For each output 3.3V 2200 5V 1000 12V 170 15V 110 {5V # 470 {12V # 100 {15V # 47 Unit uF
3
MINMAX
REV:1 2006/03
MDW1000 Series
Input Fuse Selection Guide
5V Input Models 1000mA Slow - Blow Type 12V Input Models 500mA Slow - Blow Type 24V Input Models 250mA Slow - Blow Type 48V Input Models 120mA Slow - Blow Type
Input Voltage Transient Rating
150 140 130 120 110 100 Vin ( VDC ) 90 80 70 60 50 40 30 20 10 0 10uS 100uS 1mS 10mS 100mS 5VDC Input Models 12VDC Input Models 24VDC Input Models 48VDC Input Models
REV:1 2006/03
MINMAX
4
MDW1000 Series
100 90 Efficiency (%)
Efficiency (%)
100 90 80 70 60 50
80 70 60 50 Low Nom Input Voltage (V) High
Low
Nom Input Voltage (V)
High
Efficiency vs Input Voltage ( Single Output )
Efficiency vs Input Voltage ( Dual Output )
90 80 Efficiency (%) 70 60 50 40 30 20 10 20 40 60 80 100
90 80 70 Efficiency (%) 60 50 40 30 20
10 20 40 60 Load Current (%) 80 100
Load Current (%)
Efficiency vs Output Load ( Single Output )
Efficiency vs Output Load ( Dual Output )
100 80 Output Power (%) 100LFM 400LFM 200LFM 60 Natural convection
40
20 0 -40
50 60 70 80 ] 90 100 110
Ambient Temperature
Derating Curve
5
MINMAX
REV:1 2006/03
MDW1000 Series
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.
To Oscilloscope + Battery + Lin Current Probe +Vin +Out Load
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.
DC / DC Converter -Vin -Out
Cin
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 Single Output DC / DC Converter -Vin -Out +Out Copper Strip Cout Scope Resistive Load
+ DC Power Source + Cin
+Vin DC / DC Converter -Vin
+Out Load -Out
Output Ripple Reduction
+Vin Dual Output DC / DC Converter -Vin +Out Com. Cout -Out
+ +Vin Single Output DC / DC Converter -Vin -Out +Out
Copper Strip Cout Scope Resistive Load Scope
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.
Design & Feature Considerations
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.
DC Power Source -
Cout
Load
+ DC Power Source -
+Vin
+Out Dual Output DC / DC Com. Converter Cout Load
-Vin
-Out
REV:1 2006/03
MINMAX
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 90C. The derating curves were determined from measurements obtained in an experimental apparatus.
Position of air velocity probe and thermocouple 15mm / 0.6in
50mm / 2in
Air Flow
DUT
7
MINMAX
REV:1 2006/03
MDW1000 Series
Mechanical Dimensions
23.8[0.94]
Top View ( 2.54 mm / 0.1 inch grids )
Connecting Pin Patterns
Single Output
0.5[0.02]
Side
2.54[0.1]
3.2[0.13]
0.5[0.02]
7.62[0.3]
Dual Output
1
7
8
10.16[0.4]
10 9
Bottom
16
Tolerance
Millimeters X.X{0.25 X.XX{0.13 {0.05
Inches X.XX{0.01 X.XXX{0.005 {0.002
Pin
Pin Connections
Pin 1 7 8 9 10 16 Single Output -Vin NC NC +Vout -Vout +Vin Dual Output -Vin NC Common +Vout -Vout +Vin
13.7[0.54]
Physical Characteristics
23.8*13.7*7.62 mm 0.94*0.54*0.30 inches Non-Conductive Black Plastic 5.1g UL94V-0
Case Size
: : : :
Case Material Weight Flammability
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

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