TOTAL POWER INT'LMKW5000 Series 25 - 30 Watts 2:1 Wide Input Range DC/DC Converters Single Outputs Key Features Y Y Y Y Y Very High Efficiency up to 88% Lead-Free Design 2:1 Input Range I / O Isolation 1500VDC Output Trim Function Y Y Y Y Y Y Remote on/off Control (Optional) Soft Start Short Circuit Protection Over Voltage Protection Six-Sided Shielding Case EMI Complies With EN55022 Class A (Only For MKW5000A Series) Y MTBF > 600,000 Hours MKW5000-Series power modules are low-profile dc-dc converters that operate over input voltage ranges of 18-36VDC and 36-75VDC and provide precisely regulated output voltages of 2.5V, 3.3V, 5V, 5.1V, 12V, 15V,including 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. OVP Protection Packing up to 30W of power into a 2 x 1.0 x 0.4 inch package, with efficiencies as high as 88%, the MKW5000 includes continuous short circuit protection, overvoltage protection, overtemperature protection, output trim function, remote on/off, six-side shielded case and EN55022 level A conducted noise compliance minimize design-in time, cost and eliminate the need for external components. Remote on/off 1500 VDC 2:1 Wide Range Block Diagram Single Output +Vin LC Filter LC Filter +Vo UVLO COMPARATORS -Vo OVP -Vin On/Off High Power Density PWM Isolation Ref.Amp Trim I/O Isolation More Power EMI EN55022 MKW5000 Series Model Selection Guide Model Number Input Voltage Output Voltage VDC VDC Max. mA Min. mA 2.5 3.3 6000 6000 0 0 744 959 5 12 15 5000 2500 2000 0 166 133 1185 1420 1420 5.1 2.5 3.3 5 12 5000 6000 6000 5000 2500 0 0 0 0 166 1207 372 480 604 710 MKW5044 15 2000 133 710 40 40 50 10 10 MKW5049 5.1 5000 0 604 50 MKW5030 MKW5031 MKW5032 MKW5033 MKW5034 MKW5039 MKW5040 MKW5041 MKW5042 MKW5043 24 ( 18 ~ 36 ) 48 ( 36 ~ 75 ) Output Current Input Current Reflected Over Efficiency Ripple Voltage Current Protection @ M a x . @No Load mALoad ( T y p . ) mA ( T y p . ) mA ( T y p . ) Absolute Maximum Ratings 50 50 70 20 20 70 100 50 VDC @Max. % Load (Typ.) 3 3.9 84 86 6.8 15 18 88 88 88 6.8 3 3.9 6.8 15 88 84 86 88 88 18 88 6.8 88 Note : Parameter 24VDC Input Models 48VDC Input Models Lead Temperature (1.5mm from case for 10 Sec.) Internal Power Dissipation Input Surge Voltage ( 1000 mS ) Min. -0.7 -0.7 --- Max. 50 100 260 Unit VDC VDC ] --- 5500 mW Exceeding the absolute maximum ratings of the unit could cause damage. These are not continuous operating ratings. 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. Environmental Specifications Parameter Operating Temperature Conditions Ambient Operating Temperature Storage Temperature Humidity Cooling Case RFI Conducted EMI Min. -40 Max. +50 -40 +105 -50 +125 --95 Free-Air Convection Six-Sided Shielded Metal Case EN55022 Class A 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. 9.To order the converter with Remote on/off function ,please add suffix - RC ( EX : MK5000(A)-RC). MKW5000 Series Input Specifications Parameter Start Voltage Under Voltage Shutdown Over Voltage Shutdown Model Min. Typ. Max. 24V Input Models 17 17.5 18 48V Input Models 34 35 36 24V Input Models 16 16.5 17 48V Input Models 32 33 34 24V Input Models 40 42 44 48V Input Models 80 82 84 --- --- 2 A --- --- 4500 mW Reverse Polarity Input Current Short Circuit Input Power All Models Input Filter Unit VDC Pi Filter Output Specifications Parameter Conditions Output Voltage Accuracy Min. Typ. Max. Unit --- {0.5 {1.0 % Line Regulation Vin=Min. to Max. --- {0.1 {0.3 % Load Regulation (2.5/3.3/5Vout) No Load to 100% --- {0.5 {1.0 % Load Regulation Io=10% to 100% --- {0.5 {1.0 % --- 75 100 mV P-P (12/15Vout) Ripple & Noise (20MHz) Ripple & Noise (20MHz) --- --- 120 mV P-P Ripple & Noise (20MHz) --- --- 10 mV rms. Over Power Protection 110 --- 160 % Transient Recovery Time --- 200 500 uS Transient Response Deviation Over Line,Load & Temp 25% Load Step Change Temperature Coefficient Output Short Circuit --- {2 {5 % --- {0.01 {0.02 %/] Continuous General Specifications Conditions Min. Typ. Max. Unit Isolation Voltage Rated Parameter 60 Seconds 1500 --- --- VDC Isolation Voltage Test Flash Tested for 1 Second 1650 --- --- VDC Isolation Resistance 500VDC 1000 --- --- M[ Isolation Capacitance 100KHz,1V --- 1200 1500 pF 280 350 400 KHz 600 --- --- K Hours Min. Typ. Max. Unit -1 --- 1 VDC --- 2 5 mA --- --- 5 uA --- --- -100 uA Switching Frequency MTBF MIL-HDBK-217F @ 25], Ground Benign Remote On/Off Control Parameter Supply On Conditions 2.5 to 100VDC or Open Circuit Supply Off Device Standby Input Current Control Input Current ( on ) Vin-RC=5.0V Control Input Current ( off ) Vin-RC=0V Control Common VDC Referenced to Negative Input MKW5000 Series Capacitive Load Models by Vout 2.5V 3.3V 5V 5.1V 12V 15V Unit Maximum Capacitive Load 6800 6800 6800 6800 680 680 uF Input Fuse Selection Guide 24V Input Models 48V Input Models 3000mA Slow - Blow Type 1500mA Slow - Blow Type Output Voltage Trim Parameter Trim Up / Down Range Conditions Min. Typ. Max. Unit % of nominal output voltage {9.0 {10.0 {11.0 % Input Voltage Transient Rating 150 140 130 120 48VDC Input Models 110 Vin ( VDC ) 100 90 80 70 24VDC Input Models 60 50 40 30 20 10 0 10uS 100uS 1mS 10mS 100mS MKW5000 Series Efficiency vs Input Voltage ( Single Output ) D e r a t i n g Curve Efficiency vs Output Load ( Single Output ) MKW5000 Series Test Configurations Output Voltage Trim Input Reflected-Ripple Current Test Setup Output voltage trim allows the user to increase or decrease the output voltage set point of a module. The output voltage can be adjusted by placing an external resistor (Radj) between the Trim and +Vout or -Vout terminals. By adjusting Radj, the output voltage can be change by {10% of the nominal output voltage. To Oscilloscope + Battery + Lin +Vin +Out DC / DC Converter Current Probe Load Cin -Vin -Out +Out +Vin Trim Down 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 1.0uF 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 Single Output DC / DC Converter -Vin Copper Strip Cout Resistive Scope Load -Vin -Out Trim Up Enable A 10K, 1 or 10 Turn trimpot is usually specified for continuous trimming. Trim pin may be safely left floating if it is not used. Connecting the external resistor (Radj-up) between the Trim and -Vout pins increases the output voltage to set the point as defined in the following equation: Radj-up = Dual Output DC / DC Com. Converter -Vin Copper Strip Cout (36.667*Vadj) - (33*Vout) V out-Vadj Vout : Nominal Output Voltage Scope Resistive Load Cout (33*Vout)- (30*Vadj) Vadj - Vout Connecting the external resistor (Radj-down) between the Trim and +Vout pins decreases the output voltage set point as defined in the following equation: -Out +Out Trim Up/Down Trim Radj-down = +Vin 10K Scope -Out Design & Feature Considerations Remote On/Off Positive logic remote on/off turns the module on during a logic high voltage on the remote on/off pin, and off during a logic low. To turn the power module on and off, the user must supply a switch to control the voltage between the on/off terminal and the -Vin terminal. The switch can be an open collector or equivalent. A logic low is -0.7V to 1.0V. A logic high is 2.5V to 100V. The maximum sink current at the on/off terminal (Pin 3) during a logic low is 100 mA. The maximum allowable leakage current of a switch connected to the on/off terminal (Pin 3) at logic hight (2.5V to 100V) is 5uA. Vadj : Adjusted Output voltage Unit : VDC/ K[ s 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. Output Overvoltage Protection The output overvoltage clamp consists of control circuitry, which is independent of the primary regulation loop, that monitors the voltage on the output terminals. The control loop of the clamp has a higher voltage set point than the primary loop. This provides a redundant voltage control that reduces the risk of output overvoltage. The OVP level can be found in the output data. MKW5000 Series Input Source Impedance Thermal Considerations 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. 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 105C. The derating curves are determined from measurements obtained in an experimental apparatus . 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 33uF for the 12V input devices and a 10uF for the 24V and 48V devices. Position of air velocity probe and thermocouple 15mm / 0.6in + DC Power Source +Vin + +Out DC / DC Converter Load Cin - -Vin -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 4.7uF capacitors at the output. + +Vin Single Output DC / DC Converter DC Power Source - -Vin + +Vin Cout Load -Out +Out Dual Output DC / DC Com. Converter DC Power Source - +Out -Vin -Out Cout Load Maximum Capacitive Load The MKW5000 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/A maximum of output current for dual outputs. The maximum capacitance can be found in the data . 50mm / 2in Air Flow DUT MKW5000 Series Mechanical Dimensions Connecting Pin Patterns Top View ( 2.54 mm / 0.1 inch grids ) Single Output 3 2 6 5 Tolerance Pin 1 4 Millimeters Inches .X{0.25 .XX{0.01 .XX{0.25 {0.05 .XXX{0.01 Pin Connections {0.002 Physical Characteristics Pin Single Output 1 +Vin 2 -Vin 3 Remote on/off 4 +Vout 5 -Vout 6 Trim 50.8*25.4*10.2 mm Case Size : Case Material : Aluminum Anodizing Treatment in black Weight : 32g 2.0*1.0*0.4 inches The MKW5000 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.