MIW2300 Series 2-3W, Ultra-Wide Input Range DIP, Single & Dual Output DC/DC Converters Key Features y y y y y y y y y y y EMI EN55022 1500 VDC I/O Isolation $ Low Cost Efficiency up to 84% 1500VDC Isolation MTBF > 1,000,000 Hours 4:1 Wide Input Range Low Cost CSA60950-1 Safety Approval Complies with EN55022 Class A Temperature Performance -40] to +71] UL 94V-0 Package Material Internal SMD Construction Industry Standard Pinout 4:1 Wide Range Minmax's MIW2300-Series power modules operate over input voltage ranges of 9-36VDC and 18-75VDC which provide precisely regulated output voltages of 3.3V, 5V, 12V, 15V, {12V and {15VDC. The -40] 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 84%, continuous short circuit, 40mA output ripple, EN55022 Class A conducted noise compliance minimize design-in time, cost and eliminate the need for external filtering. Absolute Maximum Ratings Parameter Environmental Specifications Min. Max. Unit Conditions Min. Max. Unit 24VDC Input Models -0.7 50 VDC Operating Temperature Ambient -40 +71 ] 48VDC Input Models -0.7 100 VDC Operating Temperature Case -40 +90 ] Lead Temperature (1.5mm from case for 10 Sec.) --- 260 ] Storage Temperature -40 +125 ] Internal Power Dissipation --- 2,500 mW Humidity --- 95 % Cooling Free-Air Convection Input Surge Voltage ( 1000 mS ) Exceeding the absolute maximum ratings of the unit could cause damage. These are not continuous operating ratings. 1 MINMAX Parameter Conducted EMI EN55022 Class A REV:5 2008/10/02 MIW2300 Series Model Selection Guide Model Number MIW2321 MIW2322 MIW2323 MIW2324 MIW2326 MIW2327 MIW2331 MIW2332 MIW2333 MIW2334 MIW2336 MIW2337 Input Voltage Output Voltage VDC VDC 3.3 5 12 15 {12 {15 3.3 5 12 15 {12 {15 24 ( 9 ~ 36 ) 48 ( 18 ~ 75 ) Output Current Max. mA 750 600 250 200 {125 {100 750 600 250 200 {125 {100 Min. mA 93 75 32 25 {16 {13 93 75 32 25 {16 {13 Input Current @Max. Load mA (Typ.) 138 158 154 152 156 156 68 78 75 74 76 76 Reflected Ripple Current @No Load mA (Typ.) mA (Typ.) 20 15 10 10 Efficiency @Max. Load % (Typ.) 75 79 81 82 80 80 76 80 83 84 82 82 Capacitive Load Models by Vout Maximum Capacitive Load # For each output 3.3V 5V 12V 15V {12V # {15V # Unit 680 470 330 220 150 100 uF Unit Input Fuse Selection Guide 24V Input Models 48V Input Models 1000mA Slow - Blow Type 500mA Slow - Blow Type Input Specifications Parameter Start Voltage Under Voltage Shutdown Model Min. Typ. Max. 24V Input Models 6 7.5 9 48V Input Models 12 15 18 24V Input Models --- --- 8.5 48V Input Models --- --- 16 --- --- 0.5 A --- --- 2000 mW Reverse Polarity Input Current Short Circuit Input Power All Models Input Filter REV:5 2008/10/02 VDC Pi Filter MINMAX 2 MIW2300 Series Output Specifications Parameter Conditions Min. Typ. Max. Unit --- {0.5 {2.0 % Dual Output, Balanced Loads --- {0.5 {3.0 % Line Regulation Vin=Min. to Max. --- {0.2 {1.0 % Load Regulation Io=Min. to Max. --- {0.3 {1.0 % --- 40 75 mV P-P --- --- 150 mV P-P --- --- 15 mV rms 110 --- --- % --- 150 500 uS Output Voltage Accuracy Output Voltage Balance Ripple & Noise (20MHz) Ripple & Noise (20MHz) Over Line, Load & Temp. Ripple & Noise (20MHz) Over Power Protection Transient Recovery Time Transient Response Deviation Vin=Min. 25% Load Step Change Temperature Coefficient Output Short Circuit --- {2 --- % --- {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 --- 380 500 pF --- 350 --- KHz 1000 --- --- 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. 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 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 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. 3 MINMAX REV:5 2008/10/02 MIW2300 Series Block Diagram Single Output +Vin Dual Output +Vo LC Filter +Vin +Vo LC Filter Com. -Vo PFM -Vin Isolation Ref.Amp -Vo -Vin PFM Isolation Ref.Amp 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 REV:5 2008/10/02 100uS 1mS MINMAX 10mS 100mS 4 MIW2300 Series 100 100 90 80 80 Efficiency (%) Efficiency (%) 90 70 60 70 60 50 50 40 40 Low Nom Low High 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 Nom 60 50 40 30 60 50 40 30 20 10 20 40 60 80 20 100 10 Load Current(%) 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 90 80 Ambient Temperature 100 110 ] Derating Curve 5 MINMAX REV:5 2008/10/02 MIW2300 Series Test Configurations 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 DC / DC Converter Current Probe Cin +Out -Vin Load -Out 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. +Out Single Output DC / DC Converter -Vin +Vin Com. -Vin -Out + DC Power Source +Vin + Scope +Out DC / DC Converter Load Cin - -Vin -Out Resistive Load Output Ripple Reduction -Out Dual Output DC / DC Converter 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. Copper Strip Cout +Out Input Source Impedance 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 4.7uF for the 24V input devices and a 2.2uF for the 48V devices. Peak-to-Peak Output Noise Measurement Test +Vin 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. 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 Scope Cout Scope Resistive Load + +Vin Single Output DC / DC Converter DC Power Source Design & Feature Considerations Maximum Capacitive Load The MIW2300 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 680uF maximum capacitive load for 3.3V output, 470uF for 5V output, 330uF for 12V output, 220uF for 15V output, 150uF for {12V output and 100uF for {15V output. The maximum capacitance can be found in the data sheet. +Out Cout - -Vin -Out + +Vin +Out Dual Output Com. DC / DC Converter DC Power Source - -Vin -Out Load Cout Load Overcurrent Protection REV:5 2008/10/02 MINMAX 6 MIW2300 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:5 2008/10/02 MIW2300 Series Physical Characteristics Mechanical Dimensions 10.2 [0.40] Side 2.5 [0.10] 0.50 [0.020] 2 3 9 11 16 14 Bottom 23 22 Tolerance Pin Millimeters 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 20.3 [0.80] 4.5 [0.18] 2.54 [0.100] 15.22 [0.600] 4.5 [0.18] 31.8 [1.25] Inches X.X{0.25 X.XX{0.01 X.XX{0.13 X.XXX{0.005 {0.05 {0.002 Pin Connections Pin Single Output 2 -Vin Dual Output -Vin 3 -Vin -Vin 9 No Pin Common 11 NC -Vout 14 +Vout +Vout Common 16 -Vout 22 +Vin +Vin 23 +Vin +Vin NC: No Connection REV:5 2008/10/02 MINMAX 8