Rev A MSKUW Series 5 Watt DC/DC Converter Single and Dual Outputs 4:1 Ultra Wide Input Voltage Range FEATURES DESCRIPTION ● SMT Technology ● High Power Density ● Efficiency up to 83% ● 1500VDC I/O Isolation ● Short Circuit Protection ● Remote ON/OFF Control ● MTBF > 1,000,000 Hours ● 4:1 Ultra Wide Input Voltage Range ● EMI Complies with EN55022 Class A ● Operating Temperature: -40°C to +71°C The MSKUW series of DC/DC converters provide a maximum of 5 watts in a “gull-wing” SMT package. These converters operate over 4:1 ultra wide input voltage ranges of 9-36 or 18-75VDC. This series also has single output voltages of 3.3, 5, 12, and 15VDC and dual output voltages of ±5, ±12, and ±15VDC. These converters have a typical full load efficiency of 83%, remote ON/OFF control, and continuous short circuit protection. The -40°C~+71°C operating temperature make these converters ideal for data communication equipment, mobile battery driven equipment, process/machine control equipment, telecommunication equipment, computer peripheral systems, distributed power systems, mixed analog/digital subsystems, and industrial robot systems. The EN55022 Class A conducted noise compliance minimizes design time, cost, and eliminates the need for external filter components. SPECIFICATIONS: MSKUW Series All specifications are based on 25°C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted. We reserve the right to change specifications based on technological advances. SPECIFICATION INPUT (Vin) Input Voltage Range Start Voltage Under Voltage Shutdown Input Surge Voltage (1000ms) TEST CONDITIONS Min Nom Max 24V nominal input models 48V nominal input models 24V nominal input models 48V nominal input models 24V nominal input models 48V nominal input models 24V nominal input models 48V nominal input models 9 18 7 14 6 13 -0.7 -0.7 24 48 8 16 7 15 36 75 9 18 8 17 50 100 1 Reverse Polarity Input Current Input Filter Reflected Ripple Current Short Circuit Input Power Unit VDC VDC VDC VDC A Pi Filter See Rating Chart 1000 3000 mW OUTPUT (Vo) Output Voltage Output Voltage Accuracy Output Voltage Balance Load Regulation Line Regulation Output Power Output Current Ripple & Noise (20MHz) Ripple & Noise (20MHz) Ripple & Noise (20MHz) Transient Response Deviation Transient Recovery Time See Rating Chart ±0.5 ±2.0 ±0.5 ±3.0 ±0.3 ±1.0 ±0.2 ±1.0 5 See Rating Chart 50 85 100 15 ±2 ±6 250 500 Dual Output, Balanced Loads Io = 10% to 100% Vin = min. to max. Over Line, Over Load, and Over Temperature 25% Load Step Change 25% Load Step Change % % % W mVpk-pk mVpk-pk mVrms % µs REMOTE ON/OFF CONTROL Supply On Supply Off Device Standby Input Current Control Input Current (ON) Control Input Current (OFF) Control Common -0.7 Vin = min to max Vin = min to max 2.5 to 5.5VDC or open circuit 0.8 10 -600 -700 Referenced to negative input VDC mA µA µA PROTECTION Short Circuit Protection Over Power Protection Input Fuse Recommendation continuous 115 24V nominal input models 48V nominal input models % 1500mA slow-blow type 750mA slow-blow type GENERAL Efficiency Switching Frequency Isolation Voltage Rated Isolation Voltage Test Isolation Resistance Isolation Capacitance Internal Power Dissipation Max. Capacitive Load See Rating Chart 340 60 seconds Flash Test for 1 second 500VDC 100KHz, 1V 1500 1650 1000 650 750 2500 See Rating Chart KHz VDC VDC MΩ pF mW ENVIRONMENTAL Operating Temperature (Ambient) Operating Temperature (Case) Storage Temperature Lead Temperature Humidity Cooling Temperature Coefficient MTBF Conducted EMI -40 -40 -40 1.5mm from case for 10 seconds MIL-HDBK-217F @ 25°C, Ground Benign +71 +90 +125 260 95 Free air convection ±0.01 ±0.02 1000 °C °C °C °C % %/°C Khours EN55022 Class A PHYSICAL Weight Dimensions (L x W x H) Case Material Flammability 14 grams 1.31x0.81x0.40 in (33.4x20.6x10.2 mm) Non-conductive black plastic UL94V-0 Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 MSKUW Series 5 Watt DC/DC Converter Single and Dual Outputs 4:1 Ultra Wide Input Voltage Range Rev A OUTPUT VOLTAGE / CURRENT RATING CHARTS SINGLE OUTPUT MODELS Model Number Input Voltage MSKW24S33UW4 Output Voltage Output Current Min Max Input Current No Load Max Load Reflected Ripple Current Maximum Capacitive Load 76% 2000µF 80% 2000µF 3.3 VDC 120mA 1200mA 24 VDC 5 VDC 100mA 1000mA (9 ~ 36 VDC) 12 VDC 41.7mA 417mA 251mA 83% 470µF MSKW24S15UW5 15 VDC 33.3mA 333mA 251mA 83% 330µF MSKW48S33UW4 3.3 VDC 120mA 1200mA 109mA 76% 2000µF 5 VDC 100mA 1000mA 80% 2000µF MSKW24S5UW5 MSKW24S12UW5 MSKW48S5UW5 48 VDC 217mA Efficiency (Typ) 260mA 20mA 15mA 130mA 10mA 10mA MSKW48S12UW5 (18 ~ 75 VDC) 12 VDC 41.7mA 417mA 126mA 83% 470µF MSKW48S15UW5 15 VDC 33.3mA 333mA 125mA 83% 330µF Efficiency (Typ) Maximum Capacitive Load 80% 680µF 83% 330µF DUAL OUTPUT MODELS Model Number Input Voltage MSKW24D5UW5 MSKW24D12UW5 24 VDC (9 ~ 36 VDC) MSKW24D15UW5 MSKW48D5UW5 MSKW48D12UW5 48 VDC (18 ~ 75 VDC) MSKW48D15UW5 Output Voltage Output Current Min Max Input Current No Load Max Load Reflected Ripple Current ±5 VDC ±50mA ±500mA 260mA ±12 VDC ±20.8mA ±208mA ±15 VDC ±16.7mA ±167mA 252mA 83% 220µF ±5 VDC ±50mA ±500mA 130mA 80% 680µF ±12 VDC ±20.8mA ±208mA 83% 330µF ±15 VDC ±16.7mA ±167mA 83% 220µF 20mA 10mA 251mA 125mA 15mA 10mA 126mA NOTES 1. Transient recovery time is measured to within 1% error band for a step change in output load of 75% to 100%. 2. The MSKUW series requires a minimum output loading to maintain specified regulations. Operation under no-load conditions will not damage these devices, however they may not meet all listed specifications. 3. All DC/DC converters should be externally fused at the front end for protection. 4. Other input and output voltages may be available, please contact factory. 5. It is not recommended to use the water-washing process on SMT units. BLOCK DIAGRAMS Single Output Dual Output Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 Rev A INPUT VOLTAGE TRANSIENT RATING DERATING CURVE Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 MSKUW Series 5 Watt DC/DC Converter Single and Dual Outputs 4:1 Ultra Wide Input Voltage Range MSKUW Series 5 Watt DC/DC Converter Single and Dual Outputs 4:1 Ultra Wide Input Voltage Range Rev A Efficiency vs Input Voltage (Single Output) Efficiency vs Input Voltage (Dual Output) Efficiency vs Output Load (Single Output) Efficiency vs Output Load (Dual Output) Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 MSKUW Series 5 Watt DC/DC Converter Single and Dual Outputs 4:1 Ultra Wide Input Voltage Range Rev A MECHANICAL DRAWING CONNECTING PIN PATTERNS Top View (2.54mm / 0.1 inch grids) Unit: mm [inches] 1. Tolerance: X.X±0.25 [X.XX±0.01] X.XX±0.13 [X.XXX±0.005] 2. Pin: ±0.05 [±0.002] PIN CONNECTIONS PIN Single Output Dual Output 1 Remote On/Off Remote On/Off 2 -Vin -Vin 3 -Vin -Vin 9 NC Common 10 NC NC 11 NC -Vout 12 NC NC 13 NC NC 14 +Vout +Vout 15 NC NC 16 -Vout Common 22 +Vin +Vin 23 +Vin +Vin 24 NC NC NC: No Connection Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 MSKUW Series 5 Watt DC/DC Converter Single and Dual Outputs 4:1 Ultra Wide Input Voltage Range Rev A DESIGN & FEATURE CONSIDERATONS Over Current Protection To provide protection in a fault (output over load) 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 to its specified range. Input Source / Remote On/Off Positive logic remote on/off turns the module ON during a logic high voltage on the remote on/off pin, and turns the module OFF during a logic low voltage on the remote on/off pin. 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 the on/off terminal during a logic low is 300µA. The maximum sink current of the switch at the on/off terminal = 2.5 to 5.5V is 200µA or open. 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. A 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 100KHz) capacitor of 3.3µF for the 12V input models and a 2.2µF for the 24V and 48V input models. + +Vin + DC Power Source +Out DC / DC Converter Load Cin - -Vin -Out Maximum Capacitive Load The MSKUW series has a limit 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 Output Voltage / Current Rating Chart. TEST CONFIGURATIONS Input Reflected-Ripple Current Test Setup Input reflected-ripple current is measured with an inductor Lin (4.7µH) and Cin (220µF, ESR < 1.0Ω at 100KHz) to simulate source impedance. To Oscilloscope + Battery + +Vin Lin Cin Current Probe +Out DC / DC Converter -Vin Load -Out Capacitor Cin offsets possible battery impedance. Current ripple is measured at the input terminals of the module. Measurement bandwidth is 0 ~ 500KHz. Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797 MSKUW Series 5 Watt DC/DC Converter Single and Dual Outputs 4:1 Ultra Wide Input Voltage Range Rev A 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 ~ 20MHz. Position the load between 50mm and 75mm from the DC/DC Converter. +Vin +Out Copper Strip Single Output DC / DC Converter -Vin Cout +Vin Resistive Scope Load -Out +Out Dual Output DC / DC Converter Com. -Vin -Out Copper Strip Cout Scope Cout Scope Resistive Load Output Ripple Reduction A good quality low ESR capacitor placed as close as possible 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 Single Output DC / DC Converter DC Power Source - + +Out -Vin +Vin DC Power Source Cout Load - -Out +Out Dual Output DC / DC Com. Converter -Vin -Out Cout Load 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 50mm / 2in 15mm / 0.6in Air Flow DUT COMPANY INFORMATION: Wall Industries, Inc. has created custom and modified units for over 40 years. Our in-house research and development engineers will provide a solution that exceeds your performance requirements on time and on budget. Our ISO9001-2000 certification is just one example of our commitment to producing a high quality, well-documented product for our customers. Our past projects demonstrate our commitment to you, our customer. Wall Industries, Inc. has a reputation for working closely with its customers to ensure each solution meets or exceeds form, fit and function requirements. We will continue to provide ongoing support for your project above and beyond the design and production phases. Give us a call today to discuss your future projects. Contact Wall Industries for further information: Phone: Toll Free: Fax: E-mail: Web: Address: (603)778-2300 (888)587-9255 (603)778-9797 [email protected] www.wallindustries.com 5 Watson Brook Rd. Exeter, NH 03833 Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 603-778-2300 www.wallindustries.com Fax 603-778-9797