MIW1200 Series 2-3W, Wide Input Range DIP, Single & Dual Output DC/DC Converters Key Features y y y y y y y y y y Efficiency up to 86% 1500VDC Isolation MTBF > 1,000,000 Hours 2:1 Wide Input Range Short Circuit Protection Complies with EN55022 Class A Temperature Performance -40] to +71] Industry Standard Pinout UL 94V-0 Package Material Internal SMD Construction Minmax's MIW1200-Series power modules operate over input voltage ranges of 9-18VDC, 18-36VDC and 36-75VDC 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 Low Cost 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 1500 VDC systems. The modules have a maximum power rating of 3W and a typical EMI 2:1 EN55022 Wide Range full-load efficiency of 86%, continuous short circuit, 25mA output ripple, EN55022 Class A conducted noise compliance minimize I/O Isolation design-in time, cost and eliminate the need for external filtering. Block Diagram Single Output +Vin Dual Output +Vo LC Filter +Vin +Vo LC Filter Com. -Vo -Vin 1 PFM Isolation Ref.Amp -Vo -Vin MINMAX PFM Isolation Ref.Amp REV:0 2005/04 MIW1200 Series Model Selection Guide Model Number MIW1221 MIW1222 MIW1223 MIW1224 MIW1225 MIW1226 MIW1227 MIW1231 MIW1232 MIW1233 MIW1234 MIW1235 MIW1236 MIW1237 MIW1241 MIW1242 MIW1243 MIW1244 MIW1245 MIW1246 MIW1247 Input Voltage Output Voltage VDC 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 12 ( 9 ~ 18 ) 24 ( 18 ~ 36 ) 48 ( 36 ~ 75 ) 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 Input Current 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 Parameter 12VDC Input Models Input Surge Voltage 24VDC Input Models ( 1000 mS ) 48VDC Input Models Lead Temperature (1.5mm from case for 10 Sec.) Internal Power Dissipation Min. -0.7 -0.7 -0.7 ----- Max. 25 50 100 260 2,500 Unit VDC VDC VDC ] mW Exceeding the absolute maximum ratings of the unit could cause damage. These are not continuous operating ratings. mA (Typ.) 30 15 8 15 4 15 @Max. Load % (Typ.) 75 78 82 81 76 80 78 76 80 83 84 78 82 82 78 82 85 86 80 84 83 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. Environmental Specifications REV:0 2005/04 @No Load mA (Typ.) Efficiency Notes : Absolute Maximum Ratings Parameter Operating Temperature Operating Temperature Storage Temperature Humidity Cooling Conducted EMI @Max. Load mA (Typ.) 220 267 305 309 274 313 321 109 130 150 149 134 152 152 53 64 74 73 65 74 75 Reflected Ripple Current Conditions Ambient Case Min. Max. -40 +71 -40 +90 -40 +125 --95 Free-Air Convection EN55022 Class A Unit ] ] ] % MINMAX 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. 2 MIW1200 Series Input Specifications Parameter Start Voltage Under Voltage Shutdown Model Min. 12V Input Models 4.5 7 9 24V Input Models 8 12 18 Max. Unit 48V Input Models 16 24 36 12V Input Models --- 6.5 8.5 24V Input Models --- 11 17 48V Input Models --- 22 34 --- --- 1 A --- 1000 2000 mW Reverse Polarity Input Current Short Circuit Input Power Typ. All Models Input Filter VDC Pi Filter Output Specifications Parameter Conditions Output Voltage Accuracy Min. Typ. Max. Unit % --- {0.5 {1.0 Dual Output, Balanced Loads --- {0.5 {2.0 % Line Regulation Vin=Min. to Max. --- {0.2 {0.5 % Load Regulation Io=10% to 100% --- {0.2 {0.5 % --- 25 50 mV P-P Output Voltage Balance Ripple & Noise (20MHz) --- --- 75 mV P-P Ripple & Noise (20MHz) Ripple & Noise (20MHz) Over Line, Load & Temp. --- --- 15 mV rms Over Power Protection 120 --- --- % Transient Recovery Time --- 300 500 uS 50% Load Step Change Transient Response Deviation Temperature Coefficient Output Short Circuit --- {3 {6 % --- {0.01 {0.02 %/] Continuous General Specifications Parameter Conditions Min. Typ. Max. Unit Isolation Voltage Rated 60 Seconds 1500 --- --- VDC Isolation Voltage Test Flash Tested for 1 Second 1650 --- --- VDC Isolation Resistance 500VDC 1000 --- --- M[ Isolation Capacitance 100KHz,1V --- 350 500 pF 200 300 450 KHz 1000 --- --- K Hours Switching Frequency MTBF MIL-HDBK-217F @ 25], Ground Benign Capacitive Load Models by Vout Maximum Capacitive Load 3.3V 5V 12V 15V {5V # {12V # {15V # Unit 4000 4000 4000 4000 1000 1000 1000 uF # For each output 3 MINMAX REV:0 2005/04 MIW1200 Series Input Fuse Selection Guide 12V Input Models 700mA Slow - Blow Type 24V Input Models 48V Input Models 350mA Slow - Blow Type 135mA Slow - Blow Type Input Voltage Transient Rating 150 140 130 120 48VDC Input Models 110 Vin ( VDC ) 100 90 80 24VDC Input Models 70 60 50 40 12VDC Input Models 30 20 10 0 10uS REV:0 2005/04 100uS 1mS MINMAX 10mS 100mS 4 100 100 90 90 Efficiency (%) Efficiency (%) MIW1200 Series 80 70 60 80 70 60 50 Low Nom 50 High Low Nom Input Voltage (V) Efficiency vs Input Voltage ( Dual Output ) 90 90 80 80 70 70 Efficiency (%) Efficiency (%) Efficiency vs Input Voltage ( Single Output ) 60 50 60 50 40 40 30 30 20 10 20 40 High Input Voltage (V) 60 80 100 20 Load Current (%) 10 20 40 60 80 100 Load Current (%) Efficiency vs Output Load ( Single Output ) Efficiency vs Output Load ( Dual Output ) 100 100LFM 400LFM Natural convection 200LFM Output Power (%) 80 60 40 20 0 〜 -40 50 60 70 80 Ambient Temperature 90 100 110 ] Derating Curve 5 MINMAX REV:0 2005/04 MIW1200 Series Test Configurations Overcurrent Protection Input Reflected-Ripple Current Test Setup 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 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 +Vin Lin Cin -Vin 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. +Out DC / DC Converter Current Probe Input Source Impedance Load -Out 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. 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 3.3uF for the 12V input devices and a 1.5uF for the 24V and 48V devices. + DC Power Source +Vin +Out Single Output DC / DC Converter -Vin +Vin Copper Strip Cout +Vin + +Out DC / DC Converter Load Cin - -Vin -Out Resistive Scope Load -Out Output Ripple Reduction +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. Dual Output DC / DC Converter Com. -Vin -Out Copper Strip Cout Scope Cout Scope Resistive Load + +Vin Single Output DC / DC Converter DC Power Source Design & Feature Considerations +Out Cout - -Vin -Out + +Vin +Out Load Maximum Capacitive Load The MIW1200 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. REV:0 2005/04 Dual Output DC / DC Com. Converter DC Power Source MINMAX - -Vin -Out Cout Load 6 MIW1200 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 90°C. The derating curves are determined from measurements obtained in an experimental apparatus. Position of air velocity probe and thermocouple 15mm / 0.6in 7 50mm / 2in Air Flow DUT MINMAX REV:0 2005/04 MIW1200 Series Mechanical Dimensions Connecting Pin Patterns Top View ( 2.54 mm / 0.1 inch grids ) Single Output 10.2 [0.40] Side 2.5 [0.10] 0.50 [0.020] 9 11 16 14 2 3 Bottom 23 22 Tolerance Pin Millimeters Inches X.X{0.25 X.XX{0.01 X.XX{0.13 {0.05 X.XXX{0.005 {0.002 Dual Output 20.3 [0.80] 4.5 [0.18] 2.54 [0.100] 15.22 [0.600] 4.5 [0.18] 31.8 [1.25] Pin Connections Physical Characteristics Pin Single Output Dual Output 2 -Vin -Vin 3 -Vin -Vin 9 No Pin Common 11 NC -Vout 14 +Vout +Vout 16 -Vout Common 22 +Vin +Vin 23 +Vin +Vin 31.8*20.3*10.2 mm Case Size : Case Material : Non-Conductive Black Plastic Weight : 12.2g Flammability : UL94V-0 1.25*0.80*0.40 inches NC: No Connection The MIW1200 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