WR-U SERIES Single and dual output • • • • • 30 Watts output power UL approved (48V input models) 2:1 input range Efficiency to 86% Isolated outputs The WR-U series DC/DC converters accept a wide input voltage range of 9 to 18VDC, 18 to 36VDC, and 36 to 72VDC. A 100kHz switching regulator produces operating efficiencies as high as 86% with output loads as light as 25% of full load. These 30 Watt models provide for remote sensing, input/output isolation of 500VDC minimum, and short circuit protection. The WRU Series incorporates six sided continuous EMI/RFI shielding. The “U” package measures 2.56 x 4.56 x 0.83 inches and is PCB mountable. Other pertinent specifications include: overvoltage protection on all outputs, operating temperature range of –25°C to 71°C with no derating required and all models are free-air convection cooled. [ 2 YEAR WARRANTY ] SPECIFICATION All specifications are typical at nominal input, full load at 25°C unless otherwise stated OUTPUT SPECIFICATIONS INPUT SPECIFICATIONS CONTINUED Voltage accuracy ±1.0% Voltage adjustability Singles ±10%, max. Remote sense Singles Yes Line regulation LL-HL, all outputs ±0.2%, max. Load regulation FL-NL FL-0.25%FL ±5.0%, max. ±1.0%, max. Voltage balance Duals Ripple and noise 5Hz to 20MHz 75mV pk-pk 10mV rms, max. Transient response 25% step load change ±1.0% error band 500µs rec. Remote ON/OFF Logic compatibility Ec-ON Ec-OFF Shutdown idle current Input resistance Control common CMOS or open collector TTL +5.5VDC min. or open-circuit max. 1.8VDC 5mA 0VDC <Ein< 9VDC; 100kΩ Referenced to input minus GENERAL SPECIFICATIONS Efficiency Typical Temperature coefficient Isolation voltage See Note 5 Input/Output Input/Case Switching frequency Fixed 100kHz Approvals and standards Safety UL1950 500VDC 250VDC ±0.02%/°C, max. Case material Overvoltage protection 75% to 86% ±2.0% Single +5V output Single +12 and+15V Duals Short circuit protection 6.8V ±10% 18.0V ±10% No Continuous automatic recovery Black coated copper with non-conductive base Material flammability UL94V-0 Weight MTBF 390g (13.77oz) See Note 6 840,000 hours INPUT SPECIFICATIONS ENVIRONMENTAL SPECIFICATIONS Input voltage range 12VDC 24VDC 48VDC 9 to 18VDC 18 to 36VDC 36 to 72VDC No load input current 12VDC 24VDC 48VDC 30mA 25mA 20mA Input filter See Note 7 Single outputs Dual outputs Reverse voltage protection Pi filter Low ESR cap Internal shunt diode (Use external fuse) Thermal performance Operating ambient -25°C to +71°C Non-operating amb. -55°C to +105°C Case, temp. rise +30°C at FL max. Derating None required Cooling Free-air convection cooled Relative humidity Non-condensing Altitude Operating Non operating 10,000 feet max. 40,000 feet max. Vibration, Pressure 5Hz to 500Hz 2.5G rms (approx.) 5% to 95% RH Data Sheet © Artesyn Technologies® 2000 The information and specifications contained in this data sheet are believed to be correct at time of publication. However, Artesyn Technologies accepts no responsibility for consequences arising from printing errors or inaccuracies. Specifications are subject to change without notice. No rights under any patent accompany the sale of any such product(s) or information contained herein. PAGE 1 DC/DC CONVERTERS | 30W DC 30 Watt Wide input DC/DC converters INPUT VOLTAGE OUTPUT VOLTAGE OUTPUT CURRENT 9-18VDC 5VDC 5.0A 2.8A 75% ±0.2% ±1.0% WR12S05/5000U 9-18VDC 12VDC 2.5A 3.2A 78% ±0.2% ±1.0% WR12S12/2500U 9-18VDC 15VDC 2.0A 3.2A 78% ±0.2% ±1.0% WR12S15/2000U 18-36VDC 5VDC 5.0A 1.35A 77% ±0.2% ±1.0% WR24S05/5000U 18-36VDC 12VDC 2.5A 1.55A 80% ±0.2% ±1.0% WR24S12/2500U 18-36VDC 15VDC 2.0A 1.55A 80% ±0.2% ±1.0% WR24S15/2000U 36-72VDC 5VDC 5.0A 0.68A 77% ±0.2% ±1.0% WR48S05/5000U 36-72VDC 12VDC 2.5A 0.78A 80% ±0.2% ±1.0% WR48S12/2500U 36-72VDC 15VDC 2.0A 0.78A 80% ±0.2% ±1.0% WR48S15/2000U 9-18VDC ±12VDC ±1.25A 3.05A 82% ±0.2% ±1.0% WR12D12/1250U 9-18VDC ±15VDC ±1.0A 3.05A 82% ±0.2% ±1.0% WR12D15/1000U 18-36VDC ±12VDC ±1.25A 1.5A 84% ±0.2% ±1.0% WR24D12/1250U 18-36VDC ±15VDC ±1.0A 1.5A 84% ±0.2% ±1.0% WR24D15/1000U 36-72VDC ±12VDC ±1.25A 0.73A 86% ±0.2% ±1.0% WR48D12/1250U 36-72VDC ±15VDC ±1.0A 0.73A 86% ±0.2% ±1.0% WR48D15/1000U (1) INPUT CURRENT (2) TYPICAL EFFICIENCY REGULATION LINE (3) LOAD MODEL NUMBER (4) Notes 1 2 3 4 5 6 7 8 Nominal input 12, 24 and 48VDC. Maximum at full load. Measured from high line to low line. Measured from full load to 0.25% full load. In many cases, the isolation specification may be upgraded. Consult factory for details. MTBF figures are based on actual product performance. Consult factory for details. Fixed frequency design provides for easier input filtering and better noise performance. Standard specifications are conservative and can be optimised for specific applications. In particular, converter start-up at lower than specified temperature, wider input voltage range and output voltage adjustment are all relatively simple modifications to the standard product. Consult factory for details. EXTERNAL OUTPUT TRIMMING Output can be externally trimmed by ±10% using either method shown below. 5 5 TRIM UP 4 4 10KΩ TRIMPOT TRIM DOWN 3 3 0.800 (20.300) 0.70 (17.80) 0.300 (7.600) PIN CONNECTIONS PIN NUMBER SINGLE OUTPUT DUAL OUTPUT 1 + Input + Input 2 – Input – Input 3 + Sense/Trim Down + Output 4 Trim Common 5 – Sense/Trim Up – Output 6 + Output No Pin 7 – Output No Pin 8 Remote On/Off Control 0.200 (5.100) 0.040 Dia. (1.000) 0.400 (10.200) 4.56 (115.80) 7 6 2.50 (63.50) 2 0.30 (7.60) International Safety Standard Approvals 0.22 Min. (5.60) 0.83 (21.10) 1 8 0.400 (10.200) 0.600 (15.200) 1.50 (38.10) DS_WRU_19980401.PDF UL1950 File Numbers E136005 and E131987 5 4 3 BOTTOM VIEW 2.56 (66.00) ALL DIMENSIONS IN INCHES (mm) http://www.artesyn.com PAGE 2