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MIW4100 Series
5-6W, Ultra-Wide Input Range DIP, Single & Dual Output DC/DC Converters
Key Features
Efficiency up to 83% 1500VDC Isolation MTBF > 1,000,000 Hours 4:1 Wide Input Range Low Cost Complies with EN55022 Class A Temperature Performance -40] to +71] Industry Standard Pinout UL 94V-0 Package Material Internal SMD Construction
Minmax's MIW4100-Series power modules operate over input voltage ranges of 9-36VDC and 18-75VDC 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 6W and a typical full-load efficiency of 83%, continuous short circuit, EN55022 Class A conducted noise compliance minimize design-in time, cost and eliminate the need for external filtering.
I/O Isolation
EN55022 Wide Range
$
Low Cost
High Power Density
More Power
1500 VDC
EMI
4:1
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
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Model Selection Guide
Model Number Input Voltage Output Voltage Output Current Input Current Reflected Ripple Current mA (Typ.) Efficiency
VDC MIW4121 MIW4122 MIW4123 MIW4124 MIW4125 MIW4126 MIW4127 MIW4131 MIW4132 MIW4133 MIW4134 MIW4135 MIW4136 MIW4137 48 ( 18 ~ 75 ) 24 ( 9 ~ 36 )
VDC 3.3 5 12 15 {5 {12 {15 3.3 5 12 15 {5 {12 {15
Max. mA 1200 1000 500 400 {500 {250 {200 1200 1000 500 400 {500 {250 {200
Min. mA 120 100 50 40 {50 {25 {20 120 100 50 40 {50 {25 {20
@Max. Load mA (Typ.) 220 267 301 305 267 301 305 110 134 151 152 134 151 152
@No Load mA (Typ.)
@Max. Load % (Typ.) 75 78 83
20
20
82 78 83 82 75 78 83
10
15
82 78 83 82
Absolute Maximum Ratings
Parameter Input Surge Voltage ( 1000 mS ) Internal Power Dissipation 24VDC Input Models 48VDC Input Models Min. -0.7 -0.7 ----Max. 50 100 260 2,500 Unit 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.
Lead Temperature (1.5mm from case for 10 Sec.)
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. -40 -40 -40 --Free-Air Convection EN55022 Class A Max. +71 +95 +125 95 Unit ] ] ] %
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 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.
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MIW4100 Series
Input Specifications
Parameter Start Voltage Under Voltage Shutdown Reverse Polarity Input Current Short Circuit Input Power Input Filter All Models Model 24V Input Models 48V Input Models 24V Input Models 48V Input Models Min. 7 14 --------Typ. 8 16 --------Pi Filter Max. 9 18 8.5 16 1 3000 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=10% to 100% Conditions Min. --------------110 ------Continuous Typ. {0.5 {0.5 {0.1 {0.5 50 ----250 300 {3 {0.01 Max. {2.0 {2.0 {0.5 {1.0 80 100 15 350 500 --{0.02 Unit % % % % mV P-P mV P-P mV rms % uS % %/]
General Specifications
Parameter Isolation Voltage 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. ------350 450 --Max. ------550 ----Unit VDC VDC M[ pF KHz K Hours
Capacitive Load
Models by Vout Maximum Capacitive Load # For each output 3.3V 470 5V 470 12V 100 15V 100 {5V # 100 {12V # 100 {15V # 100 Unit uF
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Input Fuse Selection Guide
24V Input Models 1000mA Slow-Blow type 48V Input Models 750mA 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 24VDC Input Models 48VDC Input Models
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
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MIW4100 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 4.7uF for the 24V input devices and a 2.2uF for the 48V devices.
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
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.
+ DC Power Source +Vin Single Output DC / DC Converter -Vin -Out +Out
+Vin Dual Output DC / DC Converter -Vin
+Out Com.
Copper Strip Cout Cout Scope Resistive Load Scope
-Out
Design & Feature Considerations
Maximum Capacitive Load
The MIW4100 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. The maximum capacitance can be found in the data sheet.
Cout
Load
-
+ DC Power Source -
+Vin
+Out Dual Output DC / DC Com. Converter Cout Load
-Vin
-Out
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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
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MIW4100 Series
Mechanical Dimensions
Top View ( 2.54 mm / 0.1 inch grids )
Connecting Pin Patterns
Single Output
31.8 [1.25]
Side
2.54 [0.100]
4.5 [0.18]
2.5 [0.10]
0.50 [0.020]
10.2 [0.40]
4.1 [0.16]
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 NC: No Connection 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
Case Size
:
Case Material Weight Flammability
: Metal With Non-Conductive Baseplate : 17.3g : UL94V-0
The MIW4100 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.
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