FEATURES ►Ultra compact DIP Package 23.8 x 13.7 x 8.0 mm (0.94 x 0.54 x 0.31 inches) ►Efficiency up to 80% ►I/O-isolation 1500VDC ►Ultra-wide 4:1 Input Range ►Operating Temp. Range -40°C to +85°C ►Remote On/Off Control ►Input Filter meets EN 55022,class A and FCC, level A ►CSA/UL/IEC/EN 60950-1 Safety Approval ►3 Years Product Warranty PRODUCT OVERVIEW MDWI03 series power modules are in mini-DIP DC/DC converters that operate over input voltage ranges of 9-36VDC and 18-75VDC which provide precisely regulated output voltages of 3.3V, 5V, 12V, 15V, 24V, ±5V, ±12V and ±15VDC. Pin compatible with the MDW1000 series, the MDWI03 offers a power rating up to 3W and a typical full-load efficiency of 80%, continuous short circuit, remote on/off control, EN55022 Class A conducted noise compliance minimize design-in time, cost and eliminate the need for external filtering. The MDWI03 series is an excellent selection for data communication equipment, mobile battery driven equipment, distributed power system, telecommunication equipment, mixed analog/digital subsystem, process/machine control equipment, computer peripheral equipment and industrial robot system. Model Selection Guide Model Input Output Output Number Voltage Voltage Current (Range) VDC MDWI03-24S033 MDWI03-24S05 MDWI03-24S12 MDWI03-24S15 MDWI03-24S24 MDWI03-24D05 MDWI03-24D12 MDWI03-24D15 MDWI03-48S033 MDWI03-48S05 MDWI03-48S12 MDWI03-48S15 MDWI03-48S24 MDWI03-48D05 MDWI03-48D12 MDWI03-48D15 24 (9 ~ 36) 48 (18 ~ 75) VDC 3.3 5 12 15 24 ±5 ±12 ±15 3.3 5 12 15 24 ±5 ±12 ±15 Input Current Max. Min. @Max. Load mA 600 600 250 200 125 ±300 ±125 ±100 600 600 250 200 125 ±300 ±125 ±100 mA 90 90 38 30 19 ±45 ±19 ±15 90 90 38 30 19 ±45 ±19 ±15 mA(typ.) 110 160 156 156 156 162 156 156 55 80 78 78 78 81 78 78 @No Load mA(typ.) 30 20 Max. capacitive Efficiency Load (typ.) @Max. Load μF 220 220 47 47 47 47# 47# 47# 220 220 47 47 47 47# 47# 47# # For each output % 75 78 80 80 80 77 80 80 75 78 80 80 80 77 80 80 Input Specifications Parameter Input Surge Voltage (1 sec. max.) Start-Up Threshold Voltage Under Voltage Shutdown Short Circuit Input Power Conducted EMI In Total Power International, Inc Model Min. Typ. Max. 24V Input Models -0.7 --- 50 48V Input Models -0.7 --- 100 24V Input Models 4.5 6 8.5 48V Input Models 8.5 12 17 24V Input Models --- --- 8 48V Input Models --- --- 16 --- --- 2000 All Models Unit VDC mW Compliance to EN 55022,class A and FCC part 15,class A Toll Free: 877-646-0900 www.total-power.com MDWI03 SERIES Tota Total Power International, Inc. DC/DC CONVERTER 3W, DIP Package Output Specifications Parameter Conditions Min. Typ. Max. Unit %Vom. Output Voltage Setting Accuracy At 50% Load and Nominal Vin --- --- ±2.0 Output Voltage Balance Dual Output, Balanced Loads --- ±1.0 ±2.0 % Line Regulation Vin=Min. to Max. --- ±0.5 ±1.0 % Load Regulation Io=15% to 100% --- ±0.5 ±1.2 % --- 50 100 mV P-P --- 300 600 μsec --- ±3 --- % --- ±0.01 ±0.02 %/℃ 110 150 --- % Ripple & Noise (20MHz) Transient Recovery Time 25% Load Step Change Transient Response Deviation Temperature Coefficient Over Load Protection Foldback Short Circuit Protection Continuous General Specifications Parameter Conditions Min. Typ. Max. Unit 60 Seconds 1500 --- --- VDC I/O Isolation Resistance 500 VDC 1000 --- --- MΩ I/O Isolation Capacitance 100KHz, 1V --- 350 500 pF --- 350 --- KHz 300,000 --- --- Hours I/O Isolation Voltage (rated) Switching Frequency MTBF (calculated) Safety Approvals MIL-HDBK-217F@25℃, Ground Benign UL/cUL 60950-1 recognition(CSA certificate), IEC/EN 60950-1(CB-scheme) Input Fuse 24V Input Models 48V Input Models 1500mA Slow-Blow Type 800mA Slow-Blow Type Remote On/Off Control Parameter Conditions Min. Converter On Typ. Max. Unit 2.5V ~ 5.5V or Open Circuit Converter Off -0.7V ~ 0.8V Control Input Current (on) Vctrl = Min. to Max. --- --- -400 μA Control Input Current (off) Vctrl = Min. to Max. --- --- -400 μA --- 5 mA Control Common Referenced to Negative Input Standby Input Current --- Environmental Specifications Parameter Conditions Min. Max. Unit Operating Ambient Temperature Range (See Power Derating Curve) Natural Convection -40 +85 ℃ Case Temperature --- +105 ℃ Storage Temperature Range -50 +125 ℃ Humidity (non condensing) --- 95 % rel. H 260 ℃ Cooling Free-Air convection Lead Temperature (1.5mm from case for 10Sec.) In Total Power International, Inc --- Toll Free: 877-646-0900 www.total-power.com MDWI03 SERIES Total Power International, Inc. Tota DC/DC CONVERTER 3W, DIP Package Output Power (%) Power Derating Curve Notes 1 Specifications typical at Ta=+25℃, resistive load, nominal input voltage and 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 0-20MHz. 4 These power converters require a minimum output loading to maintain specified regulation, operation under no-load conditions will not damage these modules; 5 All DC/DC converters should be externally fused at the front end for protection. however, they may not meet all specifications listed. 6 Other input and output voltage may be available, please contact factory. 7 That “natural convection” is about 20LFM but is not equal to still air (0 LFM). 8 Specifications are subject to change without notice. Package Specifications Mechanical Dimensions Pin Connections Pin 0.5 [0.02] [0.15] 0.5 [0.02] 3.8 8.0 [0.31] 23.8 [0.94] 0.5 [0.02] Single Output Dual Output 1 -Vin -Vin 2 Remote On/Off Remote On/Off 7 NC NC 8 NC Common 9 +Vout +Vout 10 -Vout -Vout 16 +Vin +Vin NC: No Connection 2 7 8 10.16 [0.40] 1 2.54 [0.10] 12.7 [0.50] Bottom View 16 10 13.7 [0.54] 2.54 [0.10] 3.0 [0.12] 9 ►All dimensions in mm (inches) ►Tolerance: X.X±0.25 15.24 [0.60] 2.54 [0.10] ►Pin 23.8 [0.94] (X.XX±0.01) X.XX±0.13 ( X.XXX±0.005) diameter 0.5 ±0.05 (0.02±0.002) Physical Characteristics Case Size : 23.8x13.7x8.0 mm (0.94x0.54x0.31 inches) Case Material : Non-Conductive Black Plastic (flammability to UL 94V-0 rated) Pin Material : phosphor bronze Weight : 5.4g In Total Power International, Inc Toll Free: 877-646-0900 www.total-power.com MDWI03 SERIES Tota Total Power International, Inc. DC/DC CONVERTER 3W, DIP Package Test Setup Input Reflected-Ripple Current Test Setup Input reflected-ripple current is measured with a inductor Lin (4.7μH) and Cin (220μF, ESR < 1.0Ω 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 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 Scope Resistive Load +Out Dual Output DC / DC Converter Com. -Vin Copper Strip Copper Strip +Vin Scope Cout Resistive Load Copper Strip Cout -Out Scope Copper Strip Technical Notes 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 0.8V. A logic high is 2.5V to 5.5V. The maximum sink current of the switch at on/off terminal during a logic low is -300 μA. The maximum sink current of the switch at on/off terminal during a logic high is -200μA or open. 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 recommended to use a good quality low Equivalent Series Resistance (ESR < 1.0Ω at 100 KHz) capacitor of a 4.7μF for the 24V input devices and a 2.2μF for the 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 Com. DC / DC Converter -Vin -Out Cout Load Load Cout Maximum Capacitive Load The MDWI03 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. 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