WR-K SERIES Single, dual and triple output • • • • • • • WR-K Series devices are efficient, high power DC/DC converters with single, dual and triple outputs supplying 50 to 60 Watts. Their low profile 3.5 x 5.5 x 0.91 inch package provides a power density of 3.4 Watts per cubic inch. Efficiencies range from 78% to 84%. These converters feature unique dual power stages utilising forward converters with MOSFET switching at 100kHz. A Pi network input filter is also included. High efficiency is virtually constant down to 30% output loading. Other features include output short circuit protection, overvoltage protection, remote sensing of primary output, input surge protection and remote on/off control. The 2:1 input voltage ranges are 9 to 18VDC, 18 to 36VDC and 36 to 72VDC. Typical applications for WR-K Series power supplies include telecoms, distributed power systems and industrial automation. [ 2 YEAR WARRANTY ] SPECIFICATION Low profile – 0.91 inch high Efficiencies to 84% UL approved (Single outputs) 2:1 input range PCB or chassis mounting Pi input filter OVP on all outputs 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 and duals, Note 7, 8 ±10% Remote sense See Note 5, 6 Line regulation HL-LL Triples, –5V output ±0.5%, max. ±1% max. Load regulation Note 3, 11 FL-0.25%FL Dual output Triples, –5V output ±1.0% max ±2% max. ±5.0% max. Ripple and noise 5Hz to 20MHz Transient response 25% step load, change Yes 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 Temperature coefficient Overvoltage protection Short circuit protection 75mV pk-pk 10mV rms, max. ±1.0% error band 500µs recovery max. ±0.02%/°C, max. See Note 4 All outputs OVP clamp on all outputs Continuous automatic recovery INPUT SPECIFICATIONS 12VDC 24VDC 48VDC No load input current Singles, duals at 12Vin Triples at 12Vin Singles, duals at 24 and 48Vin Triples at 24 and 48Vin Reverse voltage protection Surge protection See table Isolation voltage See Note 9 Input/output Input/case Switching frequency Fixed 100kHz Approvals and standards Safety UL478 Case material Black coated aluminium with non-conductive base Single/dual Triple 454g (16.03oz) 390g (13.77oz) MTBF See Note 10 840,000 hours 9 to 18VDC 18 to 36VDC 36 to 72VDC Thermal performance Operating ambient –25°C to +55°C Operating with –25°C to +71°C optional heatsink Operating, case -25°C to +85°C Non-operating amb. -55°C to +105°C Derating above Linearly to 0 Watts +85°C case at +100°C Cooling Free-air convection cooled or conduction Relative humidity Non-condensing Altitude Operating Non operating 25mA 70mA 20mA 45mA Internal shunt diode Use external fuse Transient clamp Vibration, 5Hz to 500Hz Pressure PAGE 1 500VDC, min. 250VDC, min. Weight (without heatsink) Pi network Note 12 78%, min. ENVIRONMENTAL SPECIFICATIONS Input voltage range Input filter Efficiency 5% to 95% RH 10,000 feet max. 40,000 feet max. 2.5G rms (approx.) DC/DC CONVERTERS | 50-60W DC 50 to 60 Watt Wide input DC/DC converters INPUT VOLTAGE OUTPUT VOLTAGE 1 OUTPUT VOLTAGE 2 OUTPUT VOLTAGE 3 OUTPUT POWER INPUT TYPICAL CURRENT (1) EFFICIENCY CASE OPTION (2) MODEL NUMBER SINGLE OUTPUT 9-18VDC 5V@10A – – 50W 5.3A 78% 9-18VDC 12V@5A – – 60W 6.3A 80% WR12S05/50K -1, -3 WR12S12/60K 9-18VDC 15V@4A – 60W 6.3A 80% -1, WR12S15/60K 18-36VDC 5V@10A – – 50W 2.7A 78% -1, -3 WR24S05/50K 18-36VDC 12V@5A – – 60W 3.1A 80% -1, -3 WR24S12/60K 18-36VDC 15V@4A – – 60W 3A 80% -1 WR24S15/60K 36-72VDC 5V@10A – – 50W 1.3A 78% -1 WR48S05/50K 36-72VDC 12V@5A – – 60W 1.6A 80% -1 WR48S12/60K 36-72VDC 15V@4A – – 60W 1.6A 80% -1 WR48S15/60K 9-18VDC 5V@5A 5V@5A – 50W 5.2A 80% -1 WR12D05/50K 9-18VDC [email protected] [email protected] – 60W 6.1A 82% -1 WR12D12/60K 9-18VDC 15V@2A 15V@2A – 60W 6.1A 82% -1 WR12D15/60K DUAL OUTPUT, Note 11 9-18VDC 5V@5A [email protected] – 55W 5.66A 81% -1, -3 WR12D05-12/55K 18-36VDC [email protected] [email protected] – 60W 3.05A 82% -1, -3 WR24D12/60K 18-36VDC 15V@2A 15V@2A – 60W 3.05A 82% -1, -3 WR24D15/60K 18-36VDC 5V@5A [email protected] – 55W 2.83A 81% -1, -3 WR24D05-12/55K 36-72VDC 5V@5A 5V@5A – 50W 1.27A 82% -1 WR48D05/50K 36-72VDC [email protected] [email protected] – 60W 1.49A 84% -1 WR48D12/60K 36-72VDC 5V@5A [email protected] – 55W 1.4A 82% -1 WR48D05-12/55K 9-18VDC +5V@5A –[email protected] [email protected] 55W 5.72A 80% -1 WR12T05-12/55K TRIPLE OUTPUT, Note 11 9-18VDC +5V@5A –15V@1A +15V@1A 55W 5.72A 80% -1, -3 WR12T05-15/55K 18-36VDC +5V@5A –[email protected] [email protected] 55W 2.83A 81% -1, -3 WR24T05-12/55K 18-36VDC +5V@5A –15V@1A +15V@1A 55W 2.83A 81% -1, -3 WR24T05-15/55K 36-72VDC +5V@5A –[email protected] [email protected] 55W 1.4A 82% -1 WR48T05-12/55K 36-72VDC +5V@5A –15V@1A +15V@1A 55W 1.4A 82% -1 WR48T05-15/55K 36-72VDC [email protected] –[email protected] +5V@5A 57.5W 1.46A 83% -1 WR48T12-05/55K 36-72VDC +15V@2A –[email protected] +5V@5A 57.5W 1.46A 83% -1 WR48T15-05/55K Notes 1 2 3 4 5 6 7 8 At nominal input voltage 12, 24 or 48VDC, full load. To order the optional heatsink on the PC mount model, add the suffix '-1' to the model number e.g. WR24D05-12/55K-1. To order the chassis mount version with barrier terminal strip, add the suffix '-3' to the model number e.g. WR24D05-12/55K-3. Limit one option per unit. No minimum load required for operation. 5V outputs clamped at 6.8V; 12V or 15V outputs clamped at 18V. Can compensate for up to 1V drop between converter and load (all singleoutput versions, and output 1 of dual-output and triple-output versions). Remote sense is provided on all singles, and output #1 of duals and triples. If remote sense is not being utilised on single output units, for normal operation pin 14 should be jumpered to pin 10 and pin 12 to pin 8. For dual output units, if remote sense is not being utilised, connect pin 11 to pin 10 and pin 8 to pin 9. Remote sense can compensate up to 1V drop between converter and load. Single output models: to trim up connect pin 13 to pin 12 through a 10kΩ resistor; to trim down, connect pin 13 to pin 14 through a 10kΩ resistor. Dual output models: the trim facility is provided only for output #2. To trim up connect pin 13 to pin 12 through a 10kΩ resistor; to trim down connect pin 13 to pin 14 through a 10kΩ resistor. 9 In many cases, the isolation specification may be upgraded. 10 MTBF figures are based on actual product performance. 11 The two-stage design of the WR-K Series provides isolation between outputs which means outputs can be referenced as either positive or negative. On dual output models, the outputs can be referenced as positive or negative. On triple output models. The 5V main output is isolated from the auxiliary outputs. No load sharing is possible. 12 For reverse input voltage protection, connect an external fuse in series with the input. 13 Fixed frequency design provides for easier input filtering and better noise performance. 14 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. International Safety Standard Approvals UL478 File No. E131987 (48V) http://www.artesyn.com PAGE 2 DC/DC CONVERTERS | 50-60W DC 50 to 60 Watt Wide input DC/DC converters PIN CONNECTIONS TERM SINGLE DUAL TRIPLE (6,7,8) TERM SINGLE INPUTS DUAL TRIPLE OUTPUTS 1 No Pin No Pin No Pin 8 – Output – Sense 1 – Sense 1 2 – Input – Input – Input 9 – Output – Output 1 – Output 1 3 – Input – Input – Input 10 + Output + Output 1 + Output 1 4 + Input + Input + Input 11 + Output + Sense 1 + Sense 1 5 + Input + Input + Input 12 – Sense – Output 2 – Output 2 6 Control Control Control 13 Trim Trim 2 Common 2 & 3 7 Case Case Case 14 + Sense + Output 2 + Output 3 PC MOUNTING OPTIONAL HEATSINK 1.37 (34.8) 0.88 (22.4) 0.03 (.76) 0.040 TYP. (1.02) 0.22 MIN. (5.6) 4.300 (109) 0.60 (15.2) 0.375 (9.5) 8 1 2 3.50 (88.9) 3 3.000 5 SPACES (76.2) 0.375 EACH (9.5) 9 BOTTOM VIEW 10 4 11 5 12 6 13 7 14 6 SPACES 0.375 EACH (9.5) 5.50 (140) 0.625 (15.9) ALL DIMENSIONS IN INCHES (mm) CASE K3 CHASSIS MOUNTING 5.50 (140) 4.30 (109) 0.60 (15.2) 0.375 (9.5) 8 1 3.50 (88.9) 2 9 3 10 4 3.000 (76.2) TOP VIEW 11 5 12 6 13 7 14 6 SPACES 0.375 EACH (9.5) OPTIONAL BARRIER STRIPS 0.25 (6.4) 1.30 (34.8) 0.88 (22.4) ALL DIMENSIONS IN INCHES (mm) PAGE 1 # 4-40 TAP 4 PLACES http://www.artesyn.com PAGE 2 DS_WRK_19980401.PDF 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.