鈥?/div>
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
[ 2 YEAR WARRANTY ]
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.
These low profile switchers with high power density are intended for use in
small, digital systems.
SPECIFICATION
OUTPUT SPECIFICATIONS
Output voltage
adjustability
Line regulation
LL to HL, FL
Total regulation
FL to NL
Transient response
All specifications are typical at nominal input, full load at 25擄C unless otherwise stated
GENERAL SPECIFICATIONS
鹵5.0%
鹵5.0%
鹵0.2%
鹵1.0%
鹵2.0%
鹵5.0%
Switching frequency
鹵120mV max. dev.
500碌s recovery
鹵0.02%/擄C
125% 鹵15% Vout
Weight
280g (9.88oz)
MIL-HDBK-217E
170,000 hours
90W input
power limit
Continuous
Short term
MTBF (See Note 9)
Approvals and
standards
(See Note 13)
Hold-up time
Efficiency
Isolation voltage
Input/output
Input/chassis
NFS
NFN
110VAC, 40 Watts
230VAC, 40 Watts
14ms
110ms
70% typical
3000VAC
1500VAC
Variable
Fixed, 45kHz 鹵5kHz
VDE0805, EN60950
IEC950, IEC1010, UL1950
CSA C22.2 No. 950
+5V output on triples
Vout on singles
Main output
Auxiliary outputs
Main output
Auxiliary outputs
+5V (1.5A to 3A)
Temperature coefficient All outputs
Overvoltage protection
Output power limit
Short circuit protection
+5V output
Primary power limited
Single outputs
Multiple outputs
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
(See Notes 8, 10)
Operating
0擄C to +70擄C
Non-operating
鈥?0擄C to +85擄C
50擄C ambient temp.,
40W
Convection cooled
Forced air cooling
50W @ 20CFM
50擄C to 70擄C ambient Derate linearly
to 50% load
Peak (60 seconds)
60W
Non-condensing
Operating
Non-operating
5% to 80% RH
10,000 feet max.
40,000 feet max.
2.4G rms peak
INPUT SPECIFICATIONS
Input voltage range
Input frequency range
Max. input surge
current
Safety ground
leakage current
132VAC, cold start
264VAC, cold start
NFS: 110VAC, 60Hz
230VAC, 50Hz
NFN: 132VAC, 60Hz
240VAC, 50Hz
Universal input
85 to 264VAC
120 to 370VDC
47 to 440Hz
12A max.
24A max.
0.13mA
0.32mA
155碌A(chǔ)
261碌A(chǔ)
max.
max.
max.
max.
Relative humidity
Altitude
EMC CHARACTERISTICS
Conducted emissions
Conducted emissions
Radiated emissions
ESD air
ESD contact
Surge
Fast transients
Radiated immunity
Conducted immunity
EN55022 (NFS), FCC part 15
EN55022 (NFN), FCC part 15
EN55022 (NFS and NFN)
EN61000-4-2, level 3
Perf.
EN61000-4-2, level 4
Perf.
EN61000-4-5, level 3
Perf.
EN61000-4-4, level 3
Perf.
EN61000-4-3, level 3
Perf.
EN61000-4-6, level 3
Perf.
Level A
Level B
Level A
criteria 1
criteria 1
criteria 1
criteria 1
criteria 2
criteria 2
Vibration (See Note 11) 5Hz to 500Hz,
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