NFC15 SERIES Single and dual output • • • • • • • • 4:1 input voltage range Low profile 0.46 inch 10.2 Watts/cubic inch 80% efficiency UL, CSA and VDE safety approvals Inhibit/sync function Overvoltage protection Fixed frequency operation The NFC15 series of DC/DC converters are economical 15 Watt, hybrid DC/DC converters that accept input voltages ranging from 20VDC to 72VDC. A constant efficiency of 80% is maintained over the entire input voltage range. The isolated floating output can be referenced as either positive or negative, or stacked in series for higher output voltages. All models include current limited outputs, overvoltage protection and remote on/off. Packaged in a low profile 2.0 x 1.6 x 0.46 inch case, the NFC15 is ideal for space critical applications in telecommunications, data communications and distributed power networks. [ 2 YEAR WARRANTY ] SPECIFICATION All specifications are typical at nominal input, full load at 25°C unless otherwise stated OUTPUT SPECIFICATIONS GENERAL SPECIFICATIONS Voltage accuracy Single output Dual output ±1.0% ±1.5% Voltage adjustability All outputs ±10% Line regulation LL to HL at FL, singles LL to HL at FL, duals ±0.5% max. ±0.5% max. Load regulation FL to NL, single output FL to NL, dual output ±1.0% max. ±5.0% max. Ripple and noise 5Hz to 20MHz Efficiency 80% typical Isolation voltage Input/output Switching frequency Fixed 500VDC 200kHz ±5.0% Approvals and standards VDE0805, EN60950 IEC950, UL1950 CSA C22.2 No. 950 Case material Aluminum alloy, hard black anodized finish 75mV pk-pk max. 15mV rms Cover material Temperature coefficient Overvoltage protection 10% glass reinforced polyetherimide GE ULTEM #2110 or equivalent ±0.02%/°C, max. See table Clamp Material flammability Short circuit protection (See Note 8) Continuous automatic recovery INPUT SPECIFICATIONS Input voltage range 48VDC nominal UL94V-0 Weight MTBF 45g (1.6oz) MIL-HDBK-217F Bellcore 332 >436,000 hours >950,000 hours 20 to 72VDC ENVIRONMENTAL SPECIFICATIONS Input filter (See Note 5) External capacitor Thermal performance Input current Remote ON/OFF Logic compatibility Logic on Logic off No load Full load 15mA 400mA CMOS/TTL Logic high or open Logic low or Jumper pin 2 and 4 Frequency synchronization Switching frequency ±10% Synchronization function Negative going pulse on pin 4 max. 25% duty cycle Surge protection PAGE 116 100V for 100ms Operating ambient, -25°C to +60°C (See Graph 2) Option (See Note 6) -40°C to +60°C Non-operating amb. -55°C to +125°C Max. case temperature, +105°C max. (See Note 7) Derating See curve Cooling Free air convection cooled International Safety Standard Approvals VDE0805/EN60950/IEC950 File No. 10401-3336-1075 Licence No. 1629 UL1950 File No. E136005 CSA C22.2 No. 950 File No. LR41062C DC/DC CONVERTERS | 15W DC/DC 15 Watt Wide input DC/DC converters INPUT VOLTAGE INPUT CURRENT OVP OUTPUT CURRENT 20-72VDC 5VDC 6.2VDC 3000mA 400mA 79% ±0.5% ±1% NFC15-48S05 20-72VDC 12VDC 15VDC 1250mA 400mA 81% ±0.5% ±1% NFC15-48S12 20-72VDC 15VDC 18VDC 1000mA 400mA 81% ±0.5% ±1% NFC15-48S15 20-72VDC ±12VDC 30VDC ±625mA 400mA 80% ±0.5% ±5% NFC15-48D12 20-72VDC ±15VDC 36VDC ±500mA 400mA 80% ±0.5% ±5% NFC15-48D15 (2) TYPICAL EFFICIENCY Notes 1 2 3 4 5 6 7 8 REGULATION OUTPUT VOLTAGE (1) LINE (3) LOAD MODEL NUMBER (4) (6) EXTERNAL OUTPUT TRIMMING Nominal input voltage is 48VDC. Maximum figure, at full load. Measured from low line to high line at full load. Measured from full load to no load. An external filter capacitor, connected across the inputs, is required for normal operation. Capacitor should be capable of handling 600mA ripple current. Suitable capacitor: Nippon Chemi-Con SXE series, 56µF, 100V. As a factory added option, the NFC15-48S15 can be operated down to –40°C. The suffix ‘–4’ should be added to the model number when ordering, e.g. NFC15-48S15-4. Maximum case temperature must not be exceeded. Derating curve may be extended or restricted depending on cooling. Long term continuous operation into a short circuit will compromise the reliability of the unit. Output can be externally trimmed by ±10% using either method shown below. 6 6 TRIM DOWN RTD 10 K TRIMPOT 8 8 10K 8 TRIM UP RTU 7 7 PIN CONNECTIONS PIN NUMBER SINGLE OUTPUT DUAL OUTPUT 1 + Input + Input 2 – Input – Input 3 No Pin No Pin 4 Control Control 5 No Pin + Output 6 + Output Common 7 – Output – Output 8 Trim Trim 0.46 (11.7) Stand-off 0.020 ± 0.010 0.15 (3.8) Min. 0.10 (2.5) 1.80 (45.70) 0.040 Dia. (1.0) 2.00 (50.8) 0.40 (10.2) 5 5 0.70 (17.8) 1.60 (40.6) 0.20 (5.1) 0.50 (12.70) 6 1 0.40 0.60 (10.2) (15.2) 2 3 BOTTOM VIEW 4 ALL DIMENSIONS IN INCHES (mm) 7 0.70 (17.8) 8 0.40 (10.2) 15W VIN ≤ 60V VIN > 60V "-4" OPTION NATURAL CONVECTION COOLING 0W -40°C -20°C 0°C 20°C 40°C 60°C 80°C 100°C MAXIMUM CASE TEMPERATURE UNDER ANY OPERATING CONDITION IS 105°C Graph 2 : Operating Limits and Output Power Range http://www.artesyn.com PAGE 117 DS_NFC15_20000101.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.