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| TOTAL POWER INT'L 56 Watts 4 : 1 Wide Input Range DC/DC Converters Single and Dual Outputs Key Features MIW4000 Series High Efficiency up to 86% High Power Density 4:1 Input Range I/O Isolation 1500VDC Industry Standard Pinout SMT Technology Short Circuit Protection EMI Complies With EN55022 Class A MTBF > 1,000,000 Hours Minmax's MIW4000-Series power modules are low-profile dc-dc converters that operate over input voltage ranges of 9-36VDC and 18-75VDC and provide precisely regulated output voltages of 3.3V, 5V, 12V, 15V, {5V, {12V and {15V. The -25] 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 86%, continuous short circuit, EN55022 level A conducted noise compliance minimize design-in time, cost and eliminate the need for external components. High Power Density More Power 1500 VDC I/O Isolation EMI EN55022 4:1 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 MIW4000 Series Model Selection Guide Model Number Input Voltage Output Voltage Output Current Input Current Reflected Ripple Current mA (Typ.) Efficiency VDC MIW4021 MIW4022 MIW4023 MIW4024 MIW4025 MIW4026 MIW4027 MIW4031 MIW4032 MIW4033 MIW4034 MIW4035 MIW4036 MIW4037 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.) 212 257 291 294 257 291 294 106 129 145 147 123 145 147 @No Load mA (Typ.) @Max. Load % (Typ.) 78 81 86 20 10 85 81 86 85 78 81 86 10 10 85 81 86 85 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 Note : 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 these values can damage the module. These are not continuous operating ratings. Environmental Specifications Parameter Operating Temperature Operating Temperature Storage Temperature Humidity Cooling Conducted EMI Conditions Ambient Case Min. -25 -40 -40 --Free-Air Convection EN55022 Class A Max. +71 +90 +125 95 Unit ] ] ] % 5. Operation under no-load conditions will not damage these devices; however they may not meet all listed specifications. 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. MIW4000 Series Input Specifications Parameter Start Voltage Under Voltage Shortdown 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 0.5 2500 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 Balance Load Vin=Min. to Max. Io=10% to 100% Conditions Min. --------------110 ------Continuous Typ. {0.5 {0.5 {0.1 {0.3 50 ----250 250 {3 {0.01 Max. {1.0 {2.0 {0.3 {1.0 75 100 15 350 500 --{0.02 Unit % % % % mV P-P mV P-P mV rms. % uS % %/] General Specifications Parameter Isolation Voltage Isolation Test Voltage 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. ------350 340 --Max. ------550 ----Unit VDC VDC M[ pF KHz K Hours Capacitive Load Models by Vout Maximum Capacitive Load Note: # For each output . 3.3V 3000 5V 3000 12V 3000 15V 3000 {5V # 680 {12V # 680 {15V # 680 Unit uF MIW4000 Series Input Fuse Selection Guide 24V Input Models 1500mA 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 MIW4000 Series 100 90 Efficiency (%) 80 70 60 50 Efficiency (%) 100 90 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 (%) 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 MIW4000 Series Test Configurations Input Reflected-Ripple Current Test Setup 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. DC / DC Converter -Vin -Out Cin 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. 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. 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 Resistive Scope 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 + DC Power Source -Vin +Vin Single Output DC / DC Converter -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 to use 3.3uF capacitors at the output. Design & Feature Considerations Maximum Capacitive Load The MIW4000 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 680uF maximum capacitive load for dual outputs and 3000uF capacitive load for single outputs. The maximum capacitance can be found in the data. Cout Load + DC Power Source - +Vin +Out Dual Output DC / DC Com. Converter Cout Load -Vin -Out MIW4000 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 MIW4000 Series Mechanical Data 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{0.25 .XX{0.25 {0.05 Inches .XX{0.01 .XXX{0.01 {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*0.8*0.4 inches Case Size : Case Material Weight Flammability : Metal With Non-Conductive Baseplate : 17.3g : UL94V-0 NC: No Connection Units are encapsulated in a low thermal resistance molding compound which has excellent chemical resistance and electrical properties in high humidity environment and over a wide operating temperature range. The encapsulant and outer shell of the unit have UL94V-0 ratings. The leads are golden plated for better soldering. |
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