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| TOTAL POWER INT'L 3 Watts 2 :1 Wide Input Range DC/DC Converters Single and Dual Outputs Key Features MIW1500 Series Y Y Y Y Y Y Y Y High Efficiency up to 82% 2:1 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 MIW1500-Series power modules are low-profile dc-dc converters that operate over input voltage ranges of 4.5-9VDC, 9-18VDC, 18-36VDC and provide precisely regulated output voltages of 5V, 12V, {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 3W and a typical full-load efficiency of 82%, continuous short circuit, 60mA output ripple, built-in filtering for both input and output minimizes the need for external filtering. $ Low Cost 1500 VDC I/O Isolation EMI EN55022 2:1 Wide Range Block Diagram Single Output Dual Output LC +Vin Filter +Vo LC +Vin Filter +Vo Com. -Vo -Vo -Vin PFM Isolation Ref.Amp -Vin PFM Isolation Ref.Amp TOTAL POWER INT'L Model Selection Guide Model Number Input Voltage Output Voltage Output Current MIW1500 Series Input Current Reflected Ripple Current mA ( T y p . ) Efficiency VDC MIW1512 MIW1513 MIW1516 MIW1517 MIW1522 MIW1523 MIW1526 MIW1527 MIW1532 MIW1533 MIW1536 MIW1537 5 ( 4.5 ~ 9 ) VDC 5 12 {12 {15 5 12 {12 {15 5 12 {12 {15 Max. mA 600 250 {125 {100 600 250 {125 {100 600 250 {125 {100 Min. mA 60 25 {12.5 {10 60 25 {12.5 {10 60 25 {12.5 {10 @Max. Load @No Load mA ( T y p . ) mA ( T y p . ) 833 789 779 779 329 313 313 313 160 152 152 152 @Max. % Load . ) (Typ 72 76 77 77 76 80 80 80 78 82 82 82 40 100 12 ( 9 ~ 18 ) 20 30 24 ( 18 ~ 36 ) 5 15 Absolute Maximum Ratings Parameter 5VDC Input Models Input Surge Voltage 12VDC Input Models ( 1000 mS ) 24VDC Input Models Lead Temperature (1.5mm from case for 10 Sec.) Internal Power Dissipation Min. -0.7 -0.7 -0.7 ----Max. 11 25 50 260 2,500 Unit VDC 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. 5. Operation at no-load will not damage these units. However, they may not meet all specifications. Min. -25 Max. +71 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 Conducted EMI Conditions Ambient Case -25 +90 -40 +125 --95 Free-Air Convection EN55022 Class A TOTAL POWER INT'L Input Specifications Parameter Start Voltage Model 5V Input Models 12V Input Models 24V Input Models Under Voltage Shutdown 5V Input Models 12V Input Models 24V Input Models Reverse Polarity Input Current Short Circuit Input Power Input Filter All Models Min. 3.5 4.5 8 ----------- MIW1500 Series Typ. 4 7 12 3.5 6.5 11 --1000 Pi Filter Max. 4.5 9 18 4 8.5 17 1 2000 Unit VDC A mW 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. --------------120 ------Continuous Typ. {0.5 {0.5 {0.2 {0.2 45 ------300 {3 {0.01 Max. {2.0 {2.0 {0.5 {0.5 60 100 15 --500 {6 {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. --------300 --Max. ------500 ----Unit VDC VDC M[ pF KHz K Hours Capacitive Load Models by Vout Maximum Capacitive Load Note: # For each output . 5V 470 12V 470 {12V # 220 {15V # 220 Unit uF TOTAL POWER INT'L Input Fuse Selection Guide 5V Input Models 1500mA Slow - Blow Type 12V Input Models 700mA Slow - Blow Type MIW1500 Series 24V Input Models 350mA 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 TOTAL POWER INT'L 100 90 Efficiency (%) 80 70 60 MIW1500 Series 100 90 Efficiency (%) Low Nom Input Voltage (V) High 80 70 60 50 50 Low Nom Input Voltage (V) High Efficiency vs Input Voltage ( Single Output ) Efficiency vs Input Voltage ( Dual Output ) 90 80 Efficiency (%) Efficiency (%) 90 80 70 60 50 40 30 20 70 60 50 40 30 20 10 20 40 60 80 100 Load Current (%) 10 20 40 60 80 100 Load Current (%) Efficiency vs Output Load ( Single Output ) Efficiency vs Output Load ( Dual Output ) 100 100LFM Natural convection 400LFM 80 Output Power (%) 200LFM 60 40 20 0 -25 a 50 60 70 80 ] 90 100 110 Ambient Temperature Derating Curve TOTAL POWER INT'L Test Configurations Input Reflected-Ripple Current Test Setup To Oscilloscope + Battery + Lin Current Probe +Vin +Out Load MIW1500 Series 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 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. 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 devices. 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 Copper Strip Cout Scope Resistive Load Output Ripple Reduction + DC Power Source + Cin -Vin -Out +Vin DC / DC Converter +Out Load Single Output DC / DC Converter -Vin -Out +Vin +Out Copper Strip Cout Cout Scope Resistive Load Scope Dual Output DC / DC Com. Converter -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 to use 3.3uF capacitors at the output. + +Vin +Out Design & Feature Considerations Maximum Capacitive Load The MIW1500 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 220uF maximum capacitive load for dual outputs and 470uF capacitive load for single outputs. The maximum capacitance can be found in the data . DC Power Source -Vin Single Output DC / DC Converter -Out Cout Load + DC Power Source - +Vin +Out Cout Dual Output DC / DC Com. Converter -Vin -Out Load TOTAL POWER INT'L 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 . MIW1500 Series Position of air velocity probe and thermocouple 15mm / 0.6in 50mm / 2in Air Flow DUT TOTAL POWER INT'L Mechanical Dimensions Single Output 31.8 [1.25] MIW1500 Series Connecting Pin Patterns Top View ( 2.54 mm / 0.1 inch grids ) Side 0.50 [0.020] 2.54 [0.100] 4.5 [0.18] 2.5 [0.10] 10.2 [0.40] 4.5 [0.18] Dual Output 15.22 [0.600] 23 Bottom 9 11 23 22 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 Dual Output -Vin -Vin No Pin NC +Vout -Vout +Vin +Vin -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 Non-Conductive Black Plastic 12.4g UL94V-0 Case Size : Case Material : Weight Flammability : : NC: No Connection The MIW1500 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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