2W, Wide Input Range DIP, Single & DC/DC s Key Features Efficiency up to 81 Isolation MTBF > 1,000,000 Hours 2:1 Wide Input Range CSA1 Safety Approval Low Ripple and Noise Short Circuit Protection Complies with EN022 Class A UL 94V-0 Package Material Internal SMD Construction Minmax's MDW0-Series power modules are low-profile dc-dc converters that operate over input voltage ranges of 4.-9, 9-18, 18-36 and 36-72 which provide precisely regulated output voltages of 3.3V, V, V, 1V, {V, {V and {1. The MDW0 series is an excellent selection 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 2W and a typical full-load efficiency of 81, continuous short circuit, 30mV output ripple, built-in filtering for both input and output minimize the need for external filtering. I/O Isolation Low Noise Low Profile EMI EN022 2:1 Wide Range Block Diagram LC Filter +Vo LC Filter +Vo Com. -Vo -Vo PFM Isolation Ref.Amp PFM Isolation Ref.Amp 1 E-Mail: sales@cdiweb.com
Model Selection Guide Model Number MDW11 MDW MDW13 MDW14 MDW1 MDW16 MDW17 MDW21 MDW22 MDW23 MDW24 MDW2 MDW26 MDW27 MDW31 MDW32 MDW33 MDW34 MDW3 MDW36 MDW37 MDW41 MDW42 MDW43 MDW44 MDW4 MDW46 MDW47 Input Voltage ( 4. ~ 9 ) ( 9 ~ 18 ) 24 ( 18 ~ 36 ) 48 ( 36 ~ 72 ) Output Voltage 3.3 1 { { {1 3.3 1 { { {1 3.3 1 { { {1 3.3 1 { { {1 Output Current Max. ma ma 00 0 167 42 134 33 {0 {0 {83 {21 {67 {17 00 0 167 42 134 33 {0 {0 {83 {21 {67 {17 00 0 167 42 134 33 {0 {0 {83 {21 {67 {17 00 0 167 42 134 33 {0 {0 {83 {21 {67 {17 Input Current @Max. @No ma (Typ.) ma (Typ.) 471 48 34 82 667 61 98 184 217 9 2 242 224 226 96 9 9 8 119 1 1 49 7 3 8 62 7 7 Reflected Ripple Current ma (Typ.) 2 1 Efficiency @Max. (Typ.) 7 64 69 71 77 78 78 72 77 81 74 78 71 79 79 71 77 77 Absolute Maximum Ratings Input Surge Voltage ( 0 ms ) Humidity Cooling Operating Temperature Operating Temperature Storage Temperature Conducted EMI Internal Power Dissipation Input Models Input Models 24 Input Models 48 Input Models Lead Temperature (1.mm from case for Sec.) Environmental Specifications Conditions Ambient Case -0.7-0.7-0.7-0.7 Exceeding the absolute maximum ratings of the unit could cause damage. These are not continuous operating ratings. - - - Free-Air Convection EN022 Class A Max. 11 2 0 2 1,0 Max. +6 + + 9 mw NoteS : 1. Specifications typical at Ta=+2, 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 7 to. 3. Ripple & Noise measurement bandwidth is 0- MHz. 4. These power converters require a minimum output loading to maintain specified regulation.. 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 on 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 E-Mail: sales@cdiweb.com
Input Specifications Start Voltage Under Voltage Shutdown Reverse Polarity Input Current Short Circuit Input Power Input Filter Model V Input Models V Input Models 24V Input Models 48V Input Models V Input Models V Input Models 24V Input Models 48V Input Models All Models 3. 4. 8 16 Typ. Max. 4 4. 7 9 18 24 36 3. 4 6. 8. 11 17 22 34 1 Pi Filter A mw Output Specifications Output Voltage Accuracy Output Voltage Balance Line Regulation Regulation Ripple & Noise (MHz) Ripple & Noise (MHz) Ripple & Noise (MHz) Over Power Protection Transient Recovery Time Transient Response Deviation Temperature Coefficient Output Short Circuit Conditions, Balanced s Vin= to Max. Io=2 to Over Line, & Temp. 2 Step Change 0 Continuous Typ. {1.0 {1.0 {0.3 {0. 30 {3 {0.01 Max. {2.0 {2.0 {0. {0.7 0 7 1 300 { {0.02 mv P-P mv P-P mv rms us / General Specifications Isolation Voltage Rated Isolation Voltage Test Isolation Resistance Isolation Capacitance Switching Frequency MTBF Conditions Seconds Flash Tested for 1 Second 00 KHz,1V MIL-HDBK-217F @ 2, Ground Benign 1 0 0 Typ. 300 Max. 4 M[ pf KHz K Hours Capacitive Models by Vout Maximum Capacitive # For each output 3.3V 20 V 0 V 1 1V 1 {V # 4 {V # {1V # 47 uf 3 E-Mail: sales@cdiweb.com
Input Fuse Selection Guide V Input Models V Input Models 0mA Slow - Blow Type 00mA Slow - Blow Type 24V Input Models ma Slow - Blow Type 48V Input Models 0mA Slow - Blow Type Input Voltage Transient Rating Vin ( ) 1 130 0 1 0 30 0 us 48 Input Models 24 Input Models Input Models Input Models us 1mS ms ms 4 E-Mail: sales@cdiweb.com
Efficiency () Efficiency () 0 Low Nom Input Voltage (V) High 0 Low Nom Input Voltage (V) High Efficiency vs Input Voltage ( ) Efficiency vs Input Voltage ( ) Efficiency () 0 Efficiency () 0 30 30 Current () Current () Efficiency vs Output ( ) Efficiency vs Output ( ) Output Power () LFM Natural convection 0LFM 0LFM 0-0 1 Ambient Temperature Derating Curve E-Mail: sales@cdiweb.com
Test Configurations Input Reflected-Ripple Current Test Setup Input reflected-ripple current is measured with a inductor Lin (4.7uH) and Cin (2uF, ESR < 1.0[ at khz) to simulated source impedance. Capacitor Cin, offsets possible battery impedance. Current ripple is measured at the input terminals of the module, measurement bandwidth is 0-00KHz. 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 To Oscilloscope + + Lin Battery Cin Current Probe 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 on the input to insure startup. Peak-to-Peak Output Noise Measurement Test Use a 0.47uF ceramic capacitor. Scope measurement should be made by using a BNC socket, measurement bandwidth is 0- MHz. Position the load between 0 mm and 7 mm from the DC/DC. Copper Strip Scope Resistive By using a good quality low Equivalent Series Resistance (ESR < 1.0[ at khz) capacitor of a 8.2uF for the V input devices, a 3.3uF for the V input devices and a 1.uF for the 24V and 48V devices, capacitor mounted close to the power module helps ensure stability of the unit. + DC Power Source - Output Ripple Reduction + Cin Com. Copper Strip Scope Scope Resistive 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 that 3.3uF capacitors are used on output. + Design & Feature Considerations Maximum Capacitive DC Power Source - The MDW0 series has limitation of maximum connected capacitance on the output. The power module may operate 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. + DC Power Source - Com. 6 E-Mail: sales@cdiweb.com
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 C. The derating curves were determined from measurements obtained in an experimental apparatus. Position of air velocity probe and thermocouple 1mm / 0.6in 0mm / 2in Air Flow DUT 7 E-Mail: sales@cdiweb.com
Mechanical Dimensions 23.8[0.94 Connecting Pin Patterns Top View ( 2.4 mm / 0.1 inch grids ) Side 0.[0.02 7.62[0.3 0.[0.02 2.4[0.1 3.2[0.13 1 7 8 Bottom.16[0.4 13.7[0.4 16 9 Tolerance Pin Millimeters X.X{0.2 X.XX{0.13 {0.0 Inches X.XX{0.01 X.XXX{0.00 {0.002 Pin Connections Physical Characteristics Pin 1 7 8 9 16 NC NC +Vout -Vout NC Common +Vout -Vout Case Size Case Material Weight Flammability : : : : 23.8*13.7*7.62 mm 0.94*0.4*0.30 inches Non-Conductive Black Plastic.1g UL94V-0 NC: No Connection The MDW0 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. 8 E-Mail: sales@cdiweb.com