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NFS350 SERIES
Triple and quad output
* * * * * * * * Autoranging input Overvoltage protection on main output Short circuit protection with auto restart Power fail detect VDE, UL, CSA and BABT approved Floating, fully adjustable fourth output 12VDC fan connection Conducted noise to EN55022-A, FCC level B
[ 2 YEAR WARRANTY ]
The NFS350 Series of triple and quad output 350 Watt open frame switchers is designed for use with larger digital systems. High power density allows a very compact system design. The advanced topology yields very well regulated outputs that eliminate the need for inefficient dissipative regulators. The unique floating fourth output allows a user configurable output voltage, adjustable from 4.5V to 30V, either positive or negative, at up to 4A. These supplies are approved to UL, CSA, VDE and BABT and their built-in line filter reduces conducted noise below FCC level B and VDE 0871 level A. NFS350 Series power supplies are suitable for a wide range of general industrial applications, including process automation, robotics, networking, lighting systems and telecoms. They are particularly suited for shelf power in miniature rack systems or subracks.
SPECIFICATION
OUTPUT SPECIFICATIONS Voltage adjustability Line regulation Total regulation Overshoot/undershoot Transient response
All specifications are typical at nominal input, full load at 25C unless otherwise stated ELECTROMAGNETIC COMPATIBILITY SPECIFICATIONS 5.0% 3.0% 0.1% max. 1.0% 0% GENERAL SPECIFICATIONS 150mV max. dev. 500s recovery 0.02%/C Efficiency 230VAC, FL Input/output Input/chassis 70% typical 3000VAC 1500VAC Variable Safety VDE0805, EN60950, IEC950 IEC1010, UL1950, BABT CSA C22.2 No. 950 1.9kg (67.07oz) MIL-HDBK-217E 66,000 hours 6.25V 0.5V Isolation voltage 550W, min. Hold-up time 230VAC, after power failure 230VAC, after PFD flag 20ms 5ms Conducted emissions Radiated emissions ESD air ESD contact Surge Fast transients Radiated immunity Conducted immunity EN55022, level A EN55022 EN61000-4-2, level EN61000-4-2, level EN61000-4-5, level EN61000-4-4, level EN61000-4-3, level EN61000-4-6, level
+5V output Auxiliaries LL to HL, FL Main output See Note 4 At turn-on +5.1V (35A to 50A step)
3 4 3 3 3 3
Perf. Perf. Perf. Perf. Perf. Perf.
criteria criteria criteria criteria criteria criteria
1 1 1 1 1 1
Temperature coefficient All outputs Overvoltage protection Output power limit Short circuit protection Remote sense Fan output current Foldback See Note 7 Main output Note C +5V output, note 7
Continuous automatic recovery Compensate up to 200mV 12V/0.75A
Switching frequency Approvals and standards Weight MTBF
INPUT SPECIFICATIONS Input voltage range Input frequency range Input surge current Safety ground leakage current 110/230VAC 110VAC, 60Hz 230VAC, 50Hz Autoranging 90 to 132VAC 180 to 264VAC 47Hz to 63Hz 40A 0.6mA, max. 1.6mA, max.
ENVIRONMENTAL SPECIFICATIONS Thermal performance Operating, see curve 0C to +70C Non-operating -40C to +85C 0C to 50C, 350W 30CFM forced air 50C to 70C, Derate 8.75W/C 30CFM forced air Thermal switch +85C typical trip temperature, Note 7 Peak power (60s) 450W Non-condensing Operating Non-operating 5% to 95% RH 10,000 feet max. 40,000 feet max. 2.4G rms
Relative humidity Altitude
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Vibration, 5Hz to 500Hz Three orthogonal axes random vibration, 10 min. test for each axis
AC/DC POWER SUPPLIES
|
350W AC
350 Watt AC/DC universal input switch mode power supplies
OUTPUT VOLTAGE +5.1V +12.0V -12.0V +5.1V (V1) +12.0V (V2) -12.0V (V3) 4.5-16.5 (V4) +5.1V (V1) +12.0V (V2) -12.0V (V3) 15V-30V (V4)
(6) (5)
OUTPUT CURRENTS MIN 5.0A 0.3A 0.3A 5.0A 0.3A 0.3A 0A 5.0A 0.3A 0.3A 0A PIN CONNECTIONS PEAK 70A 20.0A 7.0A 70A 20.0A 7.0A - 70A 20.0A 7.0A -
(1)
RIPPLE FAN
(2)
(3)
TOTAL REGULATION 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1%
(4)
MODEL NUMBER NFS350-7608P
50.0A 12.0A 5.0A 50.0A 12.0A 5.0A 4.0A 50.0A 12.0A 5.0A 4.0A
50mV 120mV 120mV 50mV 120mV 120mV 100mV 50mV 120mV 120mV 100mV
NFS350-7625P
NFS350-7626P
Notes
NFS350-7626P AC Ground AC Neutral AC Live
Peak output current lasting less than 60 seconds with duty cycle less than 3%. During peak loading, outputs may go outside of total regulation limits. Total peak power may not exceed 450W. 2 Forced air, 30 CFM at 1 atmosphere or 350LFM. 3 Figure is peak-to-peak. Output noise measurements are made across a 50MHz bandwidth using a 12" twisted pair terminated with a 47F capacitor. 4 Total regulation is defined as the static output regulation at 25C, including initial tolerance, line voltage within stated limits, load currents within stated limits, and output voltages adjusted to their factory settings. 5 Floating output can be adjusted from 4.5V to 16.5V and referenced as either positive or negative. 6 Floating output can be adjusted from 15V to 30V and referenced as either positive or negative. 7 Output shorts will cause all outputs to fold back, protecting the supply from damage. An overvoltage or overtemperature condition will trip the output crowbar, shorting the outputs and also cause foldback. When the fault condition is cleared, the supply will automatically recover. This supply can be configured to latch off in the event of any output short. Disconnecting line power for 15 seconds will reset the latch. See mechanical note B. 8 Derating curve is application specific for ambient temperatures > 50C, for optimum reliability no part of the heatsink should exceed 90oC and no semiconductor case temperature should exceed 100oC. 9 Caution: Allow a minimum of 1 second after disconnecting the power when making thermal measurements. 10 This product is only for inclusion by professional installers within other equipment and must not be operated as a stand alone product. Power fail detect signal 50msT1200ms T2 will vary with line and load T35ms Pout: 350W PFD output is an open collector which will sink 40mA in the low state 1
TB1 Term 1 Term 2 Term 3 TB2 Term 1 Term 2 Term 3 Term 4 Term 5 Stud 1 Stud 2 TB3 Term 1 Term 2 J1 Pin 1 Pin 2 Pin 3 Pin 4 Pin 5 Pin 6
NFS350-7608P AC Ground AC Neutral AC Live
NFS350-7625P AC Ground AC Neutral AC Live
+12V, -12V Ret. -12V +12V, -12V Ret. +12V +12V +5.1V (V1) +5.1V Return
+12V, -12V Ret. -12V +12V, -12V Ret. +12V +12V +5.1V (V1) +5.1V Return
+12V, -12V Ret. -12V +12V, -12V Ret. +12V +12V +5.1V (V1) +5.1V Return
V4 Return +Aux Output (V4)
V4 Return +Aux Output (V4)
AC INPUT
4.75V 5V OUTPUT HIGH
4.75V
+5.1V Sense
+5.1V Sense
+5.1V Sense +5.1V Ret. Sense PFD PFD Return Fan +12V Ret. Fan +12V
3.5V MIN PFD SIGNAL LOW 0-4 MAX T3 T1 T2
+5.1V Ret. Sense +5.1V Ret. sense PFD PFD Return Fan +12V Ret. Fan +12V PFD PFD Return Fan +12V Ret. Fan +12V
International Safety Standard Approvals
VDE0805/EN60950/IEC950/IEC1010 File No. 10401-3336-1050 Licence No. 3613 UL1950 Reg. File No. E136005 CSA C22.2 No. 950 File No. LR41062C/LR50913/LR101320 Certificate No. PS/603177
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AC/DC POWER SUPPLIES
|
350W AC
350 Watt AC/DC universal input switch mode power supplies
TB1 Connector
Kulka P/N 4597A-03 or equivalent.
Mechanical notes
A Minimum clearance distance to any external grounded metal plate or chassis is 2mm. B Removing R15 causes the power supply to latch off in the event of output short, over-voltage or over-temperature. Removing the line power for 15 seconds will reset the latch. C Fan current must be subtracted from the available +12V current. D +5V output adjustment pot. E +12V output adjustment pot is located on the main PCB, and can be accessed through this hole. Use a Philips head plastic adjustment tool. F -12V output adjustment pot is located on the main PCB, and can be accessed through this hole. Use a Philips head plastic adjustment tool. G Auxiliary fourth output adjustment pot. H A standard cover and fan assembly can be added during manufacturing. Details are on page 65. To order, add suffix `CF' to the model number. e.g. NFS350-7608PCF.
TB2 Connector
Kulka P/N 4597A-05 or equivalent, 1/4-20 studs, 1/2 inch max. penetration.
TB3 Connector
Use #6 fork terminal connector or equivalent.
J1 Connector
Molex 22-05-3061. Mating connector is Molex 22-01-2067 or equivalent with Molex 08-50-0114 or equivalent crimp terminal, see Note C.
.250 (6.4)
6-32 SCREW THREAD (4 PL)
TB1 1
TS1 F1 5A, 250VAC
2.50 (63.5)
1.800 (45.7)
T1
BUS 1 BUS 2
J1
.77 (19.6)
F2 5A 125VAC
C8
D
C7 CONTROL BOARD
TB3
1
E
OUTPUT # 4 PCB
2 1
5.00 (127)
3.300 (83.8)
8-32 SCREW THREAD (4 PL) MAX SCREW PENETRATION FROM BOTTOM OF CHASSIS .250"
B
F
TB2
PIN 1
.75 (19.1 ) TYP.
9.000 (228.6)
6-32 SCREW THREAD (4 PL)
(-)
TB3
(+)
THERMAL SENSOR
G
TB2 J1
2.5 (63.5)
1.800 (45.7)
.250 (6.4)
10.50 (267)
PIN 1
PIN 6
PIN 1
+ 5.1V + 5.1V RET
A
ALL DIMENSIONS IN INCHES (mm)
DERATING CURVE
Output Power (Watts)
350W
FORCED AIR COOLING (30CFM) 175W
32W 0W
32W MINIMUM LOAD REQUIRED TO MAINTAIN REGULATION
0C 10C
20C
30C
40C
50C
60C
70C
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DS_NFS350_19980401.PDF
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