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NFC40 SERIES
Single and triple output
* * * * * * * * 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
US Patent No. 4621311
[ 2 YEAR WARRANTY ]
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.
SPECIFICATION
OUTPUT SPECIFICATIONS Voltage adjustability Total error band (See Note 1) Ripple and noise Transient response
All specifications are typical at nominal input, full load at 25C unless otherwise stated GENERAL SPECIFICATIONS 10% Efficiency Isolation voltage Switching frequency See table Input/output Fixed 80%, min. 500VAC, 710VDC, min. 300kHz 5.0% VDE0805, EN60950 IEC950, UL1950 CSA C22.2 No. 950 Black coated metal with Non-conductive base UL94V-0 80g (2.8oz)
All outputs (See Note 8)
Single outputs 2% typ., 3% max. Auxiliary outputs 3% typ., 5% max. 5Hz to 20MHz All outputs 100mV pk-pk, max. 20mV rms
Approvals and standards Case material
0.25% FL to 0.5% FL 2% max. dev., 100s recovery 0.02%/C max. 0.03%/C max. Material flammability Clamp type See table Continuous automatic recovery Singles Triples, to maintain auxiliary output regulation 0A 0.5A Weight ENVIRONMENTAL SPECIFICATIONS Thermal performance (See Note 11)
Temperature coefficient Single outputs Auxiliary outputs Overvoltage protection Short circuit protection Minimum main output current Single output Triple output
INPUT SPECIFICATIONS Input voltage range Input filter Remote ON/OFF Logic compatibility ON OFF Synchronization function Frequency control range Sync signal Logic compatibility 24V 48V (See Note 9) 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 Relative humidity Altitude
Operating ambient See curves Operating Case -25C to +105C Non-operating -55C to +125C Extended temp., -40C to +105C option, case (Note 10) Heatsink option (Note 5) See curves Derating See curves for baseplate cooling details Non-condensing Operating Non operating 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 (c) Artesyn Technologies(R) 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.
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DC/DC CONVERTERS
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40W DC/DC
40 Watt Wide input DC/DC converters
INPUT VOLTAGE
(2)
OUTPUT VOLTAGE 5VDC 12VDC 15VDC
OVP
(3)
MAX. OUTPUT INPUT CURRENT CURRENT 8A 3.5A 2.8A 7.5/0.75A 7.5/0.75A 8A 3.5A 2.8A 7.5/0.75A 7.5/0.75A 2.15A 2.1A 2.1A 2.15A 2.15A 1.1A 1.05A 1.05A 1.1A 1.1A
(4)
TYPICAL EFFICIENCY 80% 82% 82% 80% 80% 81% 83% 83% 81% 81%
MODEL NUMBER (5, 10) METRIC INSERTS IMPERIAL INSERTS NFC40-24S05-M NFC40-24S12-M NFC40-24S15-M NFC40-24T05-12-M NFC40-24T05-15-M NFC40-48S05-M NFC40-48S12-M NFC40-48S15-M NFC40-48T05-12-M NFC40-48T05-15-M NFC40-24S05 NFC40-24S12 NFC40-24S15 NFC40-24T05-12 (6) NFC40-24T05-15 (6) NFC40-48S05 NFC40-48S12 NFC40-48S15 NFC40-48T05-12 (6) NFC40-48T05-15 (6)
18-36VDC 18-36VDC 18-36VDC 18-36VDC 18-36VDC 36-72VDC 36-72VDC 36-72VDC 36-72VDC 36-72VDC Notes
1
6.2VDC 15VDC 18VDC
5/12VDC 6.2VDC/None 5/15VDC 6.2VDC/None 5VDC 12VDC 15VDC 6.2VDC 15VDC 18VDC
5/12VDC 6.2VDC/None 5/15VDC 6.2VDC/None
Mechanical notes
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 25C, 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, 220F/100V for the NFC40-48xxx-M and the Nippon Chemi-Con LXF Series, 1500F/50V for the NFC40-24xxx-M. 10 Extended operating temperature range. To specify an NFC40 that operates down to -40C, 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 +105C. Curve may be extended or restricted depending on available cooling.
0.50 (12.7) 0.020 0.010 (0.51 0.25) 0.4 (1.02) Dia. Typ.
0.15 (3.8) Min. 1.900 0.010 (48.26 0.25) Square 0.05 (1.3) 1.800 (45.72)
5
1 0.200 (5.08) 0.600 1.250 1.100 (15.24) (31.75) (27.94) 2 3 0.100 (2.54)
4 5 6 7 8 9
0.500 (12.700) 0.200 (5.080) 0.300 7.620 0.600 0.800 (15.24) (20.32)
0.22 0.03 (5.60.8) Dia. Stand-off (4 Places) 0.20 (5.10) 2.20 (55.90) Square Metric: M3 Tap Thru. (4 Places) Designated with the suffix '-M' at the end of the model number 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 7.5 14 OUTPUT 5 VOLT OUTPUT
PIN CONNECTIONS PIN NUMBER 1 2 3 4 5 6 7 8 9 SINGLE OUTPUT + Input - Input Control No Connection No Connection No Connection + Output Common Trim
(6,7)
TRIPLE OUTPUT + Input - Input Control + Vout 2 Common 2, 3
6.0 13 12 11 0 200 400 OUTPUT CURRENT 600 750 4.0 2.0 .50
Auxiliary Load Regulation NFC40-XXT05-15-M
18 17 16 6.0 15 14 13 0 200 400 600 OUTPUT CURRENT 750 4.0 2.0 .50 5 VOLT OUTPUT (A)
OUTPUT VOLTAGE
- Vout 3 + Vout 1 Common 1 Trim
7.5
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40W DC/DC
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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 125C which is well below the component manufacturers' maximum limits. Key to power derating curves: A B C D Natural convection. 150 linear feet per minute forced air flow. 300 linear feet per minute forced air flow. Maximum case temperature
- MX or -1X Side Mounted
21 - MY or (0..08 -1Y 83 ) 21 (0..08 83 )
Heatsink Mounting Options
Top Mounted
Power Derating Curve Without Additional Heatsink
71 100 OUTPUT POWER (%) A "-4" OPTION 75 50 25 0 -40 -20 0 20 40 60 80 100 120 AMBIENT TEMPERATURE (C) D B C
7 (36.2 .00 - MS or ) -1S 7 (36.2 .00 ) - ME or -1E
Heatsink options:
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. 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.
D B C
Power Derating Curve With Side Mounted Heatsink
100 OUTPUT POWER (%) "-4" OPTION 75 50 25 0 -40 -20 0 20 40 60 80 100 120 AMBIENT TEMPERATURE (C) A B C D
Power Derating Curve With Top Mounted Heatsink
100 OUTPUT POWER (%) A "-4" OPTION 75 50 25 0 -40 -20 0 20 40 60 80 100 120
EXTERNAL OUTPUT TRIMMING
(8)
Output can be externally trimmed by 10% using either method shown below.
PIN 7 10K PIN 8 TRIM DOWN TRIM UP PIN 9 TRIM UP/DOWN
DS_NFC40_20000101.PDF
AMBIENT TEMPERATURE (C)
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