MDHU100 Series 2W, Ultra-High Isolation DIP, Single & Dual Output DC/DC Converters Key Features y y y y y y y y y y 4000 VAC $ Low Profile Efficiency up to 75% 4000VAC Isolation MTBF > 2,000,000 Hours Low Cost Input 5 , 12 and 24VDC Output 5, 12, 15, {12 and {15VDC Temperature Performance -25] to +60] UL60950-1 Safety Approval Internal SMD Construction Low Leakage Current Low Cost I/O Isolation Minmax's MDHU100 2W DC/DC's are specially designed to provide ultra-high levels of isolation 4000VAC in a miniature DIP package. The series consists of 15 models with input voltages of 5V, 12V and 24VDC which offers standard output voltages of 5V, 12V, 15V, {12V and {15VDC . The MDHU100 series is an excellent selection for a variety of applications including distributed power systems, mixed analog/digital subsystems, portable test equipments, local power networks and battery backed systems. Absolute Maximum Ratings Parameter Environmental Specifications Min. Max. Unit Conditions Min. Max. Unit 5VDC Input Models -0.7 9 VDC Operating Temperature Ambient -25 +60 ] 12VDC Input Models -0.7 18 VDC Operating Temperature Case -25 +90 ] 24VDC Input Models -0.7 30 VDC Storage Temperature -40 +125 ] Lead Temperature (1.5mm from case for 10 Sec.) --- 260 ] Humidity --- 95 % Internal Power Dissipation --- 650 mW Cooling Free-Air Convection Input Surge Voltage ( 1000 mS ) Parameter Exceeding the absolute maximum ratings of the unit could cause damage. These are not continuous operating ratings. 1 MINMAX REV:5 2009/01/16 MDHU100 Series Model Selection Guide Model Number MDHU102 MDHU104 MDHU105 MDHU108 MDHU109 MDHU112 MDHU114 MDHU115 MDHU118 MDHU119 MDHU122 MDHU124 MDHU125 MDHU128 MDHU129 Input Voltage Output Voltage VDC VDC 5 12 15 {12 {15 5 12 15 {12 {15 5 12 15 {12 {15 5 (4.5 ~ 5.5) 12 (10.8 ~ 13.2) 24 ( 21.6 ~ 26.4 ) Output Current Max. mA 400 165 133 {83 {66 400 165 133 {83 {66 400 165 133 {83 {66 Input Current Min. mA 8 3 2.5 {1.5 {1 8 3 2.5 {1.5 {1 8 3 2.5 {1.5 {1 @Max. Load mA (Typ.) 606 600 605 553 542 253 250 252 224 220 126 125 126 112 110 Load Regulation @No Load mA (Typ.) 60 30 15 % (Max.) 12 10 10 10 10 12 10 10 10 10 12 10 10 10 10 Efficiency @Max. Load % (Typ.) 66 66 66 72 73 66 66 66 74 75 66 66 66 74 75 Capacitive Load Models by Vout Maximum Capacitive Load 5V 12V 15V {12V # {15V # Unit 330 330 330 100 100 uF # For each output Input Fuse Selection Guide 5V Input Models 12V Input Models 24V Input Models 1000mA Slow - Blow Type 500mA Slow - Blow Type 200mA Slow - Blow Type Input Specifications Parameter Input Voltage Range Reverse Polarity Input Current Input Filter REV:5 2009/01/16 Model Min. Typ. Max. 5V Input Models 4.5 5 5.5 12V Input Models 10.8 12 13.2 24V Input Models 21.6 24 26.4 --- --- 0.3 All Models MINMAX Unit VDC A Internal Capacitor 2 MDHU100 Series Output Specifications Parameter Conditions Min. Typ. Max. Unit --- {2.0 {4.0 % Dual Output, Balanced Loads --- {0.1 {1.0 % Line Regulation Vin = Min.to Max. --- {1.2 {1.5 % Load Regulation Io=20% to 100% Output Voltage Accuracy Output Voltage Balance See Model Selection Guide Ripple & Noise (20MHz) Ripple & Noise (20MHz) Over Line, Load & Temp. % --- 100 150 mV P-P --- --- 200 mV P-P Ripple & Noise (20MHz) --- --- 15 mV rms Temperature Coefficient --- {0.01 {0.02 %/] Output Short Circuit 0.5 Second Max. General Specifications Parameter Conditions Min. Typ. Max. Unit Isolation Voltage Rated 60 Seconds 4000 --- --- VAC Flash Tested for 1 Second 6000 --- --- VDC Isolation Voltage Test 240VAC, 60Hz --- --- 2 uA Isolation Resistance Leakage Current 500VDC 10 --- --- G[ Isolation Capacitance 100KHz,1V --- 15 20 pF 50 80 100 KHz 2000 --- --- K Hours Switching Frequency MTBF MIL-HDBK-217F @ 25], Ground Benign Notes : 1. Specifications typical at Ta=+25], resistive load, nominal input voltage, rated output current unless otherwise noted. 2. Ripple & Noise measurement bandwidth is 0-20 MHz. 3. These power converters require a minimum output loading to maintain specified regulation. 4. Operation under no-load conditions will not damage these modules; however, they may not meet all specifications listed. 5. All DC/DC converters should be externally fused at the front end for protection. 6. Other input and output voltage may be available, please contact factory. 7. Specifications subject to change without notice. Block Diagram Single Output Dual Output +Vo +Vin +Vo +Vin Bipolar Push-Pull Inverter Bipolar Push-Pull Inverter -Vin -Vin -Vo 3 Com. MINMAX -Vo REV:5 2009/01/16 90 90 80 80 Efficiency (%) Efficiency (%) MDHU100 Series 70 70 60 60 50 50 Low Nom High Nom Low Input Voltage (V) Input Voltage (V) Efficiency vs Input Voltage ( Single Output ) Efficiency vs Input Voltage ( Dual Output ) 90 90 80 80 70 70 Efficiency (%) Efficiency (%) High 60 50 60 50 40 40 30 30 20 20 10 20 40 60 80 100 10 Load Current(%) 20 40 60 80 100 Load Current(%) Efficiency vs Output Load ( Single Output ) Efficiency vs Output Load ( Dual Output ) 100 400LFM 100LFM Output Power (%) 80 200LFM 60 Natural convection 40 20 0 ~ -25 50 60 70 80 Ambient Temperature 90 100 110 ] Derating Curve REV:5 2009/01/16 MINMAX 4 MDHU100 Series Test Configurations 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. Input Reflected-Ripple Current Test Setup 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 + +Out DC / DC Converter Current Probe 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 2.2uF for the 5V input devices, a 1.0uF for the 12V input devices and a 0.47uF for the 24V input devices. +Vin + DC Power Source Load -Vin -Vin 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. Single Output DC / DC Converter Copper Strip Cout -Vin -Out +Vin +Out Com. -Vin -Out +Vin +Out Single Output DC / DC Converter DC Power Source - -Vin Cout Load -Out Output Ripple Reduction Scope Resistive Load 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. Copper Strip Cout Dual Output DC / DC Converter -Out -Out Peak-to-Peak Output Noise Measurement Test +Out Load Cin + +Vin DC / DC Converter - Cin +Out Cout Scope + Resistive Load +Vin Single Output DC / DC Converter DC Power Source Scope +Out Cout - -Vin -Out + +Vin +Out Load Design & Feature Considerations Maximum Capacitive Load The MDHU100 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 100uF maximum capacitive load for dual outputs and 330uF capacitive load for single outputs. The maximum capacitance can be found in the data sheet. Dual Output Com. DC / DC Converter DC Power Source - -Vin -Out Cout Load 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. 5 MINMAX REV:5 2009/01/16 MDHU100 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 REV:5 2009/01/16 50mm / 2in Air Flow DUT MINMAX 6 MDHU100 Series Physical Characteristics Mechanical Dimensions 0.5[0.02] 8.62[0.34] 23.8[0.94] 3.8[0.15] Side 0.5[0.02] 1 8 10 9 10.16[0.4] 7 Bottom 16 Tolerance Pin : Case Material : Non-Conductive Black Plastic Weight : 5.1g Flammability : UL94V-0 0.94*0.54*0.34 inches 13.7[0.54] 2.54[0.1] 23.8*13.7*8.62 mm Case Size Millimeters X.X{0.25 Inches X.XX{0.01 X.XX{0.13 X.XXX{0.005 {0.05 {0.002 Pin Connections Pin Single Output Dual Output 1 -Vin -Vin 7 NC NC 8 NC Common 9 +Vout +Vout 10 -Vout -Vout 16 +Vin +Vin NC: No Connection 7 MINMAX REV:5 2009/01/16