NFC40 SERIES Single and triple output • • • • • • • • Providing 40W of power in a 2.2 x 2.2 x 0.5 inch package, the highly specified NFC40 Series of DC/DC converters were designed with today’s demanding applications in mind. Inherent design specifications of the NFC40 include tight line and load regulation and high power density. Standard features provided by all members of the NFC40 Series are remote on/off, synchronization function, short circuit protection, overvoltage protection and an output voltage trim function. To maximize the board area available to system designers, the NFC40 footprint has been minimised without compromising on features or profile. A comprehensive package of heatsink and operating temperature options are included to further increase the flexibility offered. Artesyn Technologies has utilised its latest patented topology implemented in SMT and hybrid technologies to achieve this performance level. Typical applications for the NFC40 Series include telecommunications, remote exchanges, automation equipment, back plane power architectures and distributed power. US Patent No. 4621311 [ 2 YEAR WARRANTY ] SPECIFICATION 40 Watts in a 2.2 x 2.2 x 0.5 inch case Base plate cooled patented topology Remote ON/OFF control Short circuit protection Industry standard pin-out UL, CSA and VDE safety approvals Extended operating temperature range option Fixed frequency operation All specifications are typical at nominal input, full load at 25°C unless otherwise stated OUTPUT SPECIFICATIONS GENERAL SPECIFICATIONS Voltage adjustability All outputs (See Note 8) Total error band (See Note 1) Single outputs ±2% typ., ±3% max. Auxiliary outputs ±3% typ., ±5% max. Ripple and noise 5Hz to 20MHz All outputs Transient response ±10% 100mV pk-pk, max. 20mV rms Efficiency See table Isolation voltage Input/output Switching frequency Fixed 80%, min. 500VAC, 710VDC, min. 300kHz ±5.0% Approvals and standards VDE0805, EN60950 IEC950, UL1950 CSA C22.2 No. 950 0.25% FL to 0.5% FL ±2% max. dev., 100µs recovery Case material Temperature coefficient Single outputs Auxiliary outputs Black coated metal with Non-conductive base ±0.02%/°C max. ±0.03%/°C max. Material flammability Overvoltage protection Single output Triple output Short circuit protection Minimum main output current Clamp type See table Continuous automatic recovery Singles Triples, to maintain auxiliary output regulation 0A 0.5A Weight 24V 48V Input filter (See Note 9) Thermal performance (See Note 11) Operating ambient See curves Operating Case -25°C to +105°C Non-operating -55°C to +125°C Extended temp., -40°C to +105°C option, case (Note 10) Heatsink option (Note 5) See curves Derating See curves for baseplate cooling details Relative humidity Non-condensing Remote ON/OFF Logic compatibility ON OFF Altitude Operating Non operating Synchronization function Frequency control range Sync signal Logic compatibility 18 to 36VDC 36 to 72VDC External capacitor CMOS and TTL >1.5V or open collector <0.4V Operating frequency control ±10% Negative-going pulse, maximum 25% of duty cycle CMOS/TTL 80g (2.8oz) ENVIRONMENTAL SPECIFICATIONS INPUT SPECIFICATIONS Input voltage range UL94V-0 5% to 95% RH 10,000 feet max. 40,000 feet max. International Safety Standard Approvals VDE0805/EN60950/IEC950 File No. 10401-3336-1082 UL1950 File No. E136005 CSA C22.2 No. 950 File No. LR41062C 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 142 DC/DC CONVERTERS | 40W DC/DC 40 Watt Wide input DC/DC converters INPUT VOLTAGE (2) OUTPUT VOLTAGE OVP (3) MAX. OUTPUT INPUT CURRENT CURRENT (4) MODEL NUMBER (5, 10) METRIC INSERTS IMPERIAL INSERTS TYPICAL EFFICIENCY 18-36VDC 5VDC 6.2VDC 8A 2.15A 80% NFC40-24S05-M NFC40-24S05 18-36VDC 12VDC 15VDC 3.5A 2.1A 82% NFC40-24S12-M NFC40-24S12 18-36VDC 15VDC 18VDC 2.8A 2.1A 82% NFC40-24S15-M NFC40-24S15 18-36VDC 5/±12VDC 6.2VDC/None 7.5/±0.75A 2.15A 80% NFC40-24T05-12-M NFC40-24T05-12 (6) 18-36VDC 5/±15VDC 6.2VDC/None 7.5/±0.75A 2.15A 80% NFC40-24T05-15-M NFC40-24T05-15 (6) 36-72VDC 5VDC 6.2VDC 8A 1.1A 81% NFC40-48S05-M NFC40-48S05 36-72VDC 12VDC 15VDC 3.5A 1.05A 83% NFC40-48S12-M NFC40-48S12 36-72VDC 15VDC 18VDC 2.8A 1.05A 83% NFC40-48S15-M NFC40-48S15 36-72VDC 5/±12VDC 6.2VDC/None 7.5/±0.75A 1.1A 81% NFC40-48T05-12-M NFC40-48T05-12 (6) 36-72VDC 5/±15VDC 6.2VDC/None 7.5/±0.75A 1.1A 81% NFC40-48T05-15-M NFC40-48T05-15 (6) Notes Mechanical notes 1 A All pins are actual to within 0.010 inch (0.25mm) diameter. B Tolerances: Imperial 0.XX ± 0.02 inch 0.XXX ± 0.005 inch Metric 0.X ± 0.5mm 0.XX ± 0.13mm Unless otherwise specified. C Metric dimensions in brackets, e.g. 1.250” (31.75mm). D Copper tracks must not be routed under the four converter stand-offs. Total error band is defined at the static output regulation at 25°C, including initial setting accuracy, line voltage within stated limits and load current within stated limits. 2 Nominal input voltages are 24VDC and 48VDC. 3 Overvoltage protection threshold. Any main output overvoltage clamps the output to a very low output voltage. A prolonged overvoltage condition will cause the converter to fail. 4 Maximum value at full load, nominal input voltage. 5 For top-mounted heatsink option with Metric screws, add ‘-MX’ or ‘-MY’ to these model numbers. For side-mounted heatsink option, add ‘-ME’ or ‘-MS’ to the model number e.g. NFC40-48S05-MX. For top-mounted heatsink option with Imperial screws, add ‘-1X’ or ‘-1Y’ to these model numbers. For side-mounted heatsink option, add ‘-1E’ or ‘-1S’ to the model number e.g. NFC40-48S05-1X. 6 For triple output units, common pins (5 and 8) should be connected externally. 7 Output V1 must return to common 1 and outputs V2 and V3 to common 2 and 3 respectively in order to meet noise and regulation specifications. 8 The external trim function enables the tailoring of the output voltage to the applications exact requirements. Adjustments within ±10% are possible. On the triple output models the auxiliary output voltages (output 2 and 3) will vary proportionally to the main output. 9 An external filter capacitor is required for normal operation. The capacitor should be capable of handling 1A/2A ripple current for 48V/24V models. Artesyn suggests: Nippon Chemi-Con SXE series, 220µF/100V for the NFC40-48xxx-M and the Nippon Chemi-Con LXF Series, 1500µF/50V for the NFC40-24xxx-M. 10 Extended operating temperature range. To specify an NFC40 that operates down to –40°C, add the suffix ‘4’ or ‘-4’ to the model number e.g. NFC40-48S05-M4 or NFC40-48S05-4 for Metric and Imperial screw measurements respectively. 11 Case temperature must not exceed +105°C. Curve may be extended or restricted depending on available cooling. PIN CONNECTIONS 0.50 (12.7) 1.900 ± 0.010 (48.26 ± 0.25) Square 0.05 (1.3) 1.800 (45.72) 4 5 1 0.200 (5.08) 0.600 1.250 1.100 (15.24) (31.75) (27.94) 0.100 (2.54) 3 0.500 (12.700) 0.200 (5.080) 0.300 7.620 0.600 0.800 (15.24) (20.32) 6 7 8 9 2 0.22 ± 0.03 (5.6±0.8) Dia. Stand-off (4 Places) 0.20 (5.10) Metric: M3 Tap Thru. (4 Places) Designated with the suffix '-M' at the end of the model number 2.20 (55.90) Square Imperial: #4-40 VNC-2B Tap. Thru. (4 places) Designated without the suffix '-M' at the end of the model number ALL DIMENSIONS IN INCHES (mm) Auxiliary Load Regulation NFC40-XXT05-12-M 15 (6,7) + Input TRIPLE OUTPUT + Input OUTPUT 1 SINGLE OUTPUT 6.0 13 4.0 2.0 12 .50 – Input 3 Control Control 4 No Connection + Vout 2 5 No Connection Common 2, 3 6 No Connection – Vout 3 7 + Output + Vout 1 8 Common Common 1 9 Trim Trim 11 0 400 600 750 Auxiliary Load Regulation NFC40-XXT05-15-M 18 17 7.5 16 6.0 15 4.0 2.0 14 .50 13 0 http://www.artesyn.com 200 OUTPUT CURRENT OUTPUT VOLTAGE – Input 5 VOLT OUTPUT (A) 2 5 VOLT OUTPUT 7.5 14 PIN NUMBER 5 0.020 ± 0.010 (0.51 ± 0.25) 0.4 (1.02) Dia. Typ. 0.15 (3.8) Min. 200 400 600 OUTPUT CURRENT 750 PAGE 143 40W DC/DC | DC/DC CONVERTERS 40 Watt Wide input DC/DC converters Derating Curves The derating curves shown are based on measurements of actual power supplies and reflect Artesyn Technologies conservative design guidelines. Adherence to these guidelines contributes to the high reliability of our products by restricting the maximum operating semiconductor junction temperatures to 125°C which is well below the component manufacturers’ maximum limits. Heatsink Mounting Options Top Mounted Key to power derating curves: Natural convection. 150 linear feet per minute forced air flow. 300 linear feet per minute forced air flow. Maximum case temperature 21 (0..08 83 ) 21 - MY or (0..08 -1Y 83 ) - MX or -1X Side Mounted Power Derating Curve Without Additional Heatsink 71 A 75 50 25 B C Heatsink options: 0 -40 -20 0 20 40 60 80 100 120 AMBIENT TEMPERATURE (°C) 100 A D 50 25 "-4" OPTION B 75 C 0 -40 -20 0 20 40 60 80 100 120 AMBIENT TEMPERATURE (°C) 100 50 25 D B "-4" OPTION A Side mounted heatsink With many applications, e.g. rack systems, the profile must be kept to a minimum. The side mounted heatsink is intended to meet the requirements of low profile applications. The NFC40 with this heatsink option is 12.7mm (0.5 inch) high. The kit contains two side mounted heatsinks, which must be fitted opposite to one another on the NFC40. The order number for the side mounted heatsink is: NFC40-HTSK-S Factory fitted heatsinks As a further option, Artesyn Technologies offers factory fitted heatsinks. Simply add the suffix as described by the diagrams above to the part number: e.g. NFC40-48S12-MY or NFC4048S12-1Y for Metric and Imperial screws respectively. Power Derating Curve With Top Mounted Heatsink 75 Two heatsink kits are available for the NFC40: top mounted and side mounted. Each heatsink may be oriented parallel to or perpendicular to the direction of the pins, thus providing optimum flexibility for cooling requirements. Top mounted heatsink If board area is at a premium in your application then the top mounted heatsink should be used. This heatsink kit comes complete with screws and is mounted as shown in the diagram over. To fit the heatsink, place it in the required orientation, and tighten the four screws. The order number for the top mounted heatsink kit with Metric screws is: NFC40-HTSK-T. The order number for the top mounted heatsink kit with Imperial screws is: NFC40-HTSK-T-I. Power Derating Curve With Side Mounted Heatsink OUTPUT POWER (%) 7 . (36 .02 0) - ME or -1E 7 . (36 .02 0 - MS or ) -1S D "-4" OPTION OUTPUT POWER (%) 100 EXTERNAL OUTPUT TRIMMING C Output can be externally trimmed by ±10% using either method shown below. PIN 7 0 10K -40 (8) -20 0 20 40 60 80 100 120 TRIM DOWN PIN 8 AMBIENT TEMPERATURE (°C) TRIM UP PIN 9 PAGE 144 TRIM UP/DOWN DS_NFC40_20000101.PDF OUTPUT POWER (%) A B C D