FEATURES ►High Power Density in SIP-8 Package ►Small Footprint: 21.8 x 9.3 mm (0.86”x 0.37”) ►Ultra-wide 4:1 Input Range ►Fully Regulated Output ►Operating Temp. Range -40°C to +85°C ►Overload Protection ►I/O-Isolation Voltage 1600 VDC ►Remote On/Off Control ►CSA/UL/IEC/EN 60950-1 (Approval pending) ► 3 Years Product Warranty PRODUCT OVERVIEW The MCWI03 series is a range of isolated 3W DC/DC converter modules featuring fully regulated output and ultra-wide 4:1 input voltage ranges. The product comes in a SIP-8 package with a very small footprint occupying only 2.0 cm2 (0.3 square in.) on the PCB. An excellent efficiency allows an operating temperature range of -40°C to +85°C. Further features include remote On/Off control and over load protection. The very compact dimensions of these DC/DC converters make them an ideal solution for many space critical applications in battery-powered equipment and instrumentation. Model Selection Guide Model Number MCWI03-12S033 MCWI03-12S05 MCWI03-12S12 MCWI03-12S15 MCWI03-12D05 MCWI03-12D12 MCWI03-12D15 MCWI03-24S033 MCWI03-24S05 MCWI03-24S12 MCWI03-24S15 MCWI03-24D05 MCWI03-24D12 MCWI03-24D15 MCWI03-48S033 MCWI03-48S05 MCWI03-48S12 MCWI03-48S15 MCWI03-48D05 MCWI03-48D12 MCWI03-48D15 Input Voltage (Range) VDC 12 (4.5 ~ 18) 24 (9 ~ 36) 48 (18 ~ 75) In Total Power International, Inc Output Voltage 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 Output Current Max. mA 700 600 250 200 ±300 ±125 ±100 700 600 250 200 ±300 ±125 ±100 700 600 250 200 ±300 ±125 ±100 Min. mA 175 150 63 50 ±75 ±31 ±25 175 150 63 50 ±75 ±31 ±25 175 150 63 50 ±75 ±31 ±25 Input Current @Max. Load mA(typ.) 260 320 313 313 313 313 313 128 156 154 154 158 156 154 65 79 79 79 79 79 78 Toll Free: 877-646-0900 @No Load mA(typ.) 60 25 15 Max. capacitive Load µF 1760 1000 170 110 470 # 100 # 47 # 1760 1000 170 110 470 # 100 # 47 # 1760 1000 170 110 470 # 100 # 47 # Efficiency (typ.) @Max. Load # For each output www.total-power.com % 74 78 80 80 80 80 80 75 80 81 81 79 80 81 74 79 79 79 79 79 80 MCWI03 SERIES Total Power International, Inc. Input Specifications Parameter Input Surge Voltage (1 sec. max.) Start-Up Threshold Voltage Under Voltage Shutdown Reverse Polarity Input Current Short Circuit Input Power Internal Filter Type Internal Power Dissipation Output Specifications Parameter Output Voltage Setting Accuracy Output Voltage Balance Line Regulation Load Regulation Ripple & Noise (20MHz) Transient Recovery Time Transient Response Deviation Temperature Coefficient Short Circuit Protection General Specifications Parameter I/O Isolation Voltage (rated) I/O Isolation Resistance I/O Isolation Capacitance Switching Frequency MTBF (calculated) Safety Approvals(pending) Input Fuse Model 12V Input Models 24V Input Models 48V Input Models 12V Input Models 24V Input Models 48V Input Models 12V Input Models 24V Input Models 48V Input Models All Models Conditions At 50% Load and Nominal Vin Dual Output, Balanced Loads Vin=Min. to Max. Io=25% to 100% 25% Load Step Change Min. ----------------Continuous Typ. Max. --25 --50 --100 4 4.5 6 9 12 18 3.5 4 --8 --16 --1 --2500 Capacitor type --2600 Typ. --±0.5 ±0.3 ±0.5 50 300 ±3 --- Conditions 60 Seconds 500 VDC 100KHz, 1V Min. Typ. 1600 --1000 ----200 --350 MIL-HDBK-217F@25℃, Ground Benign 800,000 --CSA 60950-1 recognition,IEC/EN 60950-1(CB-scheme) 24V Input Models 700mA Slow-Blow Type Remote On/Off Control Parameter Converter On Converter Off Device Standby Input Current Control Input Current ( on ) Control Input Current ( off ) Control Common Conditions Natural Convection Toll Free: 877-646-0900 Unit VDC A mW mW Max. ±1.0 ±2.0 ±0.5 ±1.0 75 500 ±5 ±0.02 Unit %Vom. % % % mV P-P µsec % %/℃ Max. ----------- Unit VDC MΩ pF KHz Hours 48V Input Models 350mA Slow-Blow Type Conditions Min. Typ. Max. Under 0.6 VDC or Open Circuit, drops down to 0VDC by 2mV/℃ 2.7 --15 --1 2.5 Vin = 0V ----1 Vin = 5.0V ----1 Referenced to Negative Input Parameter Operating Ambient Temperature Range (See Power Derating Curve) Case Temperature Storage Temperature Range Humidity (non condensing) Cooling Lead Temperature (1.5mm from case for 10Sec.) In Total Power International, Inc Min. -0.7 -0.7 -0.7 3 4.5 8.5 ------------- 12V Input Models 1500mA Slow-Blow Type Environmental Specifications DC/DC CONVERTER 3W, SIP-Package Min. -40 ---55 --Free-Air convection --- Unit VDC mA mA mA Max. +85 105 +125 95 Unit ℃ ℃ ℃ % rel. H 260 ℃ www.total-power.com Total Power International, Inc. MCWI03 SERIES DC/DC CONVERTER 3W, SIP-Package Output Power (%) Power Derating Curve Notes 1 2 3 4 5 6 7 8 Specifications typical at Ta=+25℃, resistive load, nominal input voltage and rated output current unless otherwise noted. Transient recovery time is measured to within 1% error band for a step change in output load of 75% to 100%. Ripple & Noise measurement bandwidth is 0-20 MHz measured with a 1µF M/C. 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. All DC/DC converters should be externally fused at the front end for protection. Other input and output voltage may be available, please contact factory. That “natural convection” is about 20LFM but is not equal to still air (0 LFM). Specifications are subject to change without notice. Package Specifications Mechanical Dimensions 0.5 [0.02] 3.2 [0.13] 11.2 [0.44] 21.8 [0.86] 0.5 [0.02] 2.0 [0.08] 2X2.54 5.08 [2X0.10] [0.20] Pin Connections Pin Single Output 1 -Vin 2 +Vin 3 Remote On/Off 5 NC 6 +Vout 7 -Vout 8 NC Dual Output -Vin +Vin Remote On/Off NC +Vout Common -Vout NC: No Connection 3X2.54 [3X0.10] 3 5 6 7 8 9.3 [0.37] 2 0.25 [0.01] Bottom View 1 2.7 [0.11] 20.8 [0.82] Case Size Case Material Pin Material Weight : : : : ►Tolerance: X.X±0.5 (X.XX±0.02) X.XX±0.25 ( X.XXX±0.01) ►Pins ±0.1(±0.004) 0.50 [0.02] Physical Characteristics ►All dimensions in mm (inches) 21.8x9.3x11.2 mm (0.86x0.37x0.44 inches) Non-Conductive Black Plastic (flammability to UL 94V-0 rated) Alloy 42 4.8g In Total Power International, Inc Toll Free: 877-646-0900 www.total-power.com MCWI03 SERIES Total Power International, Inc. DC/DC CONVERTER 3W, SIP-Package Test Setup Peak-to-Peak Output Noise Measurement Test Use a Cout 0.47µF 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 Copper Strip Single Output DC / DC Converter -Vin Cout -Out +Vin Dual Output DC / DC Converter Resistive Load Scope -Vin Copper Strip +Out Copper Strip Cout Com. Cout -Out Scope Resistive Load Copper Strip Scope Copper Strip 330pF 330pF Technical Notes Remote On/Off Negative logic remote on/off turns the module off during a logic high voltage on the remote on/off pin, and on 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 high is 2.7V to 15V. A logic low is under 0.6 VDC or open circuit, drops down to 0VDC by 2mV/℃. The maximum sink current at on/off terminal during a logic low is 1 mA. The maximum allowable leakage current of the switch at on/off terminal= (under 0.6VDC or open circuit) is 1mA. Maximum Capacitive Load The MCWI03 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. The maximum capacitance can be found in the data sheet. 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 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. Capacitor mounted close to the power module helps ensure stability of the unit, it is commended to use a good quality low Equivalent Series Resistance (ESR < 1.0Ω at 100 KHz) capacitor of a 3.3µF for the 12V input devices and a 1.5µF for the 24V and 48V devices. + 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 3.3µF capacitors at the output. + +Vin DC Power Source - +Out Single Output DC / DC Converter -Vin + Cout Load -Out +Vin DC Power Source - +Out Dual Output DC / DC Com. Converter -Vin -Out Cout Load Load Cout 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 105℃. The derating curves are determined from measurements obtained in a test setup. Position of air velocity probe and thermocouple 50mm / 2in 15mm / 0.6in In Total Power International, Inc Air Flow DUT Toll Free: 877-646-0900 www.total-power.com