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MIW1000 Series
2-3W, Wide Input Range DIP, Single & Dual Output DC/DC Converters
Key Features
Efficiency up to 84% 1500VDC Isolation MTBF > 1,000,000 Hours 2:1 Wide Input Range UL1950 Safety Approval Low Cost Temperature Performance -40] to +71] Industry Standard Pinout UL 94V-0 Package Material Interanl SMD Construction
Minmax's MIW1000-Series power modules are low-profile dc-dc converters that operate over input voltage ranges of 4.5-9VDC, 9-18VDC, 18-36VDC and 36-72VDC 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 3W and a typical full-load efficiency of 84%, continuous short circuit, 45mV output ripple, built-in filtering for both input and output minimize the need for external filtering.
I/O Isolation
$
Low Cost
1500 VDC
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:0 2005/04
MIW1000 Series
Model Selection Guide
Model Number Input Voltage VDC MIW1011 MIW1012 MIW1013 MIW1014 MIW1015 MIW1016 MIW1017 MIW1021 MIW1022 MIW1023 MIW1024 MIW1025 MIW1026 MIW1027 MIW1031 MIW1032 MIW1033 MIW1034 MIW1035 MIW1036 MIW1037 MIW1041 MIW1042 MIW1043 MIW1044 MIW1045 MIW1046 MIW1047 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 600 500 250 200 {250 {125 {100 600 500 250 200 {250 {125 {100 600 500 250 200 {250 {125 {100 600 500 250 200 {250 {125 {100 Min. mA 60 50 25 20 {25 {12.5 {10 60 50 25 20 {25 {12.5 {10 60 50 25 20 {25 {12.5 {10 60 50 25 20 {25 {12.5 {10 Input Current @Max. Load mA (Typ.) 566 685 779 779 694 800 800 223 267 305 305 271 313 313 109 132 149 149 132 152 152 55 66 75 75 65 75 75 @No Load mA (Typ.) Reflected Ripple Current mA (Typ.) Efficiency @Max. Load % (Typ.) 70 73 77 77 72 75 75 74 78 82 82 77 80 80 76 79 84 84 79 82 82 76 79 84 84 80 84 84
5 ( 4.5 ~ 9 )
40
100
12 ( 9 ~ 18 )
20
30
24 ( 18 ~ 36 )
5
15
48 ( 36 ~ 72 )
3
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 2,500 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 50% 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. Min. Max. -40 +71 -40 +90 -40 +125 --95 Free-Air Convection Unit ] ] ] % 6. All DC/DC converters should be externally fused at 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 Conditions Ambient Case
REV:0 2005/04
MINMAX
2
MIW1000 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 --1000 Pi Filter Max. 4.5 9 18 36 4 8.5 17 34 1 2000 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 50% Load Step Change Over Line, Load & Temp. Dual Output, Balanced Loads Vin=Min. to Max. Io=10% to 100% Conditions Min. --------------120 ------Continuous Typ. {0.5 {0.5 {0.2 {0.2 45 ------300 {3 {0.01 Max. {1.0 {2.0 {0.5 {0.5 60 100 15 --500 {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. ------65 300 --Max. ------100 ----Unit VDC VDC M[ pF KHz K Hours
Capacitive Load
Models by Vout Maximum Capacitive Load # For each output 3.3V 4000 5V 4000 12V 4000 15V 4000 {5V # 1000 {12V # 1000 {15V # 1000 Unit uF
3
MINMAX
REV:0 2005/04
MIW1000 Series
Input Fuse Selection Guide
5V Input Models 1500mA Slow - Blow Type 12V Input Models 700mA Slow - Blow Type 24V Input Models 350mA Slow - Blow Type 48V Input Models 135mA 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:0 2005/04
MINMAX
4
MIW1000 Series
100 90 Efficiency (%) 80 70 60 50 Efficiency (%) Low Nom Input Voltage (V) High
100 90 80 70 60 50
Low
Nom Input Voltage (V)
High
Efficiency vs Input Voltage ( Single Output )
Efficiency vs Input Voltage ( Dual Output )
90 80 Efficiency (%) Efficiency (%) 10 20 40 60 80 70 60 50 40 30 20 100
90 80 70 60 50 40 30 20 10 20 40 60 80 100
Load Current (%)
Load Current (%)
Efficiency vs Output Load ( Single Output )
Efficiency vs Output Load ( Dual Output )
100 80 Output Power (%) 100LFM Natural convection 400LFM
200LFM
60
40
20 0 -40
50 60 70 80 ] 90 100 110
Ambient Temperature
Derating Curve
5
MINMAX
REV:0 2005/04
MIW1000 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 simulate source impedance. Capacitor Cin, offsets possible battery impedance. Current ripple is measured at the input terminals of the module, measurement bandwidth is 0-500 KHz.
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 at the input to ensure startup. Capacitor mounted close to the power module helps ensure stability of the unit, it is recommended to use 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.
+ DC Power Source + Cin -Vin -Out +Vin DC / DC Converter +Out Load
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
-
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 to use 3.3uF capacitors at the output.
+Vin Dual Output DC / DC Converter -Vin
+Out Com.
Copper Strip Cout Cout Scope Resistive Load Scope
-Out
+ DC Power Source -
+Vin Single Output DC / DC Converter -Vin
+Out
Design & Feature Considerations
Maximum Capacitive Load
The MIW1000 series has limitation of maximum connected capacitance at the output. The power module may be operated in current limiting mode during start-up, affecting the ramp-up and the startup time. For optimum performance we recommend 1000uF maximum capacitive load for dual outputs and 4000uF capacitive load for single outputs. The maximum capacitance can be found in the data sheet.
Cout -Out
Load
+ DC Power Source -
+Vin
+Out Dual Output DC / DC Com. Converter Cout Load
-Vin
-Out
REV:0 2005/04
MINMAX
6
MIW1000 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 are 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:0 2005/04
MIW1000 Series
Mechanical Dimensions
Top View ( 2.54 mm / 0.1 inch grids )
Connecting Pin Patterns
Single Output
31.8 [1.25]
Side
0.5 [0.020]
2.54 [0.100]
4.5 [0.18]
2.5 [0.10]
10.2 [0.40]
3.8 [0.15]
Dual Output
15.22 [0.600]
23 Bottom 23 22
9
11
16
14
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 2 3 9 11 14 16 22 23 Single Output -Vin -Vin No Pin NC +Vout -Vout +Vin +Vin Dual Output -Vin -Vin Common -Vout +Vout Common +Vin +Vin
20.3 [0.80]
Physical Characteristics
31.8*20.3*10.2 mm 1.25*0.80*0.40 inches Non-Conductive Black Plastic 12g UL94V-0
Case Size
: : : :
Case Material Weight Flammability
NC: No Connection
The MIW1000 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:0 2005/04
MINMAX
8

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