NFS40 and NFN40 SERIES Single and triple output • 5.0 x 3.0 x 1.2 inch package (1U applications) • Industry standard package • Overvoltage and short circuit protection • 40W with free air convection • Fixed frequency operation (NFN Series) • NFS40: EN55022, EN55011 conducted emissions level A • NFN40: EN55022, EN55011 conducted emissions level B • UL, VDE and CSA safety approvals The NFS40 and NFN40 are industry standard 40 Watt power supplies with the capability to supply 50W in a forced air ambient and to automatically operate from any voltage between 85VAC and 264VAC. Use of MOSFET based switching circuits allows for enhanced features such as output regulation down to zero load (NFN40). Universal input voltage eliminates the need to change jumpers or switch settings to cater for different or widely varying line voltages. In addition to the input voltage range, VDE, UL, CSA, EN60950 and IEC950 approvals make the NFS40 and NFN40 ideal for use in equipment installed throughout the world. The fixed frequency operation of the NFN40 further reduces emissions below VDE class B and significantly reduces leakage current. [ 2 YEAR WARRANTY ] These low profile switchers with high power density are intended for use in small, digital systems. SPECIFICATION All specifications are typical at nominal input, full load at 25°C unless otherwise stated OUTPUT SPECIFICATIONS GENERAL SPECIFICATIONS Output voltage +5V output on triples ±5.0% Hold-up time 110VAC, 40 Watts 14ms adjustability Vout on singles ±5.0% 230VAC, 40 Watts 110ms Line regulation Main output ±0.2% Efficiency 70% typical LL to HL, FL Auxiliary outputs ±1.0% Isolation voltage Input/output 3000VAC Total regulation Main output ±2.0% Input/chassis 1500VAC FL to NL Auxiliary outputs ±5.0% Switching frequency NFS Variable Transient response +5V (1.5A to 3A) ±120mV max. dev. NFN Fixed, 45kHz ±5kHz 500μs recovery Approvals and VDE0805, EN60950 Temperature coefficient All outputs ±0.02%/°C standards IEC950, IEC1010, UL1950 (See Note 13) CSA C22.2 No. 950 Overvoltage protection +5V output 125% ±15% Vout Weight 280g (9.88oz) Output power limit Primary power limited 90W input power limit MTBF (See Note 9) MIL-HDBK-217E 170,000 hours Short circuit protection Single outputs Continuous ENVIRONMENTAL SPECIFICATIONS Multiple outputs Short term Thermal performance Operating 0°C to +70°C INPUT SPECIFICATIONS (See Notes 8, 10) Non-operating –40°C to +85°C 50°C ambient temp., 40W Input voltage range Universal input 85 to 264VAC Convection cooled 120 to 370VDC Forced air cooling 50W @ 20CFM Input frequency range 47 to 440Hz 50°C to 70°C ambient Derate linearly to 50% load Max. input surge 132VAC, cold start 12A max. Peak (60 seconds) 60W current 264VAC, cold start 24A max. Relative humidity Non-condensing 5% to 80% RH Safety ground NFS: 110VAC, 60Hz 0.13mA max. leakage current 230VAC, 50Hz 0.32mA max. Altitude Operating 10,000 feet max. NFN: 132VAC, 60Hz 155μA max. Non-operating 40,000 feet max. 240VAC, 50Hz 261μA max. Vibration (See Note 11) 5Hz to 500Hz, 2.4G rms peak EMC CHARACTERISTICS Conducted emissions EN55022 (NFS), FCC part 15 Level A Conducted emissions EN55022 (NFN), FCC part 15 Level B Radiated emissions EN55022 (NFS and NFN) Level A ESD air EN61000-4-2, level 3 Perf. criteria 1 ESD contact EN61000-4-2, level 4 Perf. criteria 1 Surge EN61000-4-5, level 3 Perf. criteria 1 Fast transients EN61000-4-4, level 3 Perf. criteria 1 Radiated immunity EN61000-4-3, level 3 Perf. criteria 2 Conducted immunity EN61000-4-6, level 3 Perf. criteria 2 PAGE 24 LOW TO MEDIUM POWER AC/DC POWER SUPPLIES | 40-50W AC/DC 40 to 50 Watt AC/DC universal input switch mode power supplies OUTPUT CURRENTS OUTPUT TOTAL (4) (D) RIPPLE MODEL NUMBER (5) VOLTAGE REGULATION (1) (2) (3) MAX PEAK FAN (5,6) (5,6) +5.1V (A) 3A 7A 5A 50mV ±2.0% NFS40-7608 NFN40-7608 +12.0V (B) 2A 3A 2A 120mV ±5.0% –12.0V (C) 0.35A 1A 0.5A 120mV ±5.0% 1 (12) (12) +5.1V (A) 4A 7A 5A 50mV ±2.0% NFS40-7628 NFN40-7628 +12.0V (B) 0.35A 1A 0.5A 120mV ±5.0% –12.0V (C) 0.35A 1A 0.5A 120mV ±5.0% (5,6) (5,6) +5.1V (A) 3A 7A 5A 50mV ±2.0% NFS40-7607 NFN40-7607 +12.0V (B) 2A 3A 2A 120mV ±5.0% –5.0V (C) 0.35A 1A 0.5A 50mV ±5.0% (5,6) (5,6) +5.1V (A) 3A 7A 5A 50mV ±2.0% NFS40-7610 NFN40-7610 +15.0V (B) 2A 2.5A 2A 150mV +10.0%/–3.0% –15.0V (C) 0.35A 1A 0.5A 150mV ±5.0% +5.1V 6A 12A 8A 100mV ±2.0% NFS40-7605 NFN40-7605 +12.0V 3.3A 5A 4A 120mV ±2.0% NFS40-7612 NFN40-7612 +15.0V 2.6A 4A 3.3A 150mV ±2.0% NFS40-7615 NFN40-7615 +24.0V 1.6A 2.5A 2A 240mV ±2.0% NFS40-7624 NFN40-7624 Notes 8 Derating curve is application specific for ambient temperatures >50°C, for 1 Natural convection cooled, 40W maximum. o optimum reliability no part of the heatsink should exceed 110 C and no 2 Peak output current lasting less than 30 seconds with duty cycle less than o semiconductor case temperature should exceed 115 C. 10%. During peak loading, outputs may go outside of total regulation 9 A 4W minimum load is required to achieve the NFS design MTBF. This limits. Peak total power must not exceed 60W. restriction does not apply to the NFN series. 3 Forced air, 20 CFM at 1 atmosphere, 50W maximum. 10 Caution: Allow a minimum of 1 second after disconnecting the power when 4 Figure is peak-to-peak. Output noise is measured across a 50MHz making thermal measurements. bandwidth using a 12 inch twisted pair, terminated with a 47μF capacitor. 11 Three orthogonal axes, sweep at 1 octave/minute, 5 minute dwell at four 5 Total regulation is defined as the static output regulation at 25°C, including major resonances. initial tolerance, line voltage within stated limits, load currents within stated 12 The NFS40-7628 and NFN40-7628 have separately linear regulated +12V limits, and output voltages adjusted to their factory settings. Also, and -12V outputs. The loading conditions in note 5 and note 6 do not 0.25