NFC20 Datasheet, PDF (1/2 Pages) Artesyn Technologies – Single and dual output 20 Watt Wide input DC/DC converters

[ 2 YEAR WARRANTY ]
NFC20 SERIES
Single and dual output
• 20 Watts output power
• Power density 13.6W/in³
• 2:1 input voltage range
• Remote ON/OFF control
• UL, CSA and VDE safety approvals
• Overvoltage protection
• Extended operating temperature range
• Fixed switching frequency
The NFC20 series of DC/DC converters offers 20 Watts of output power from
the industry standard 2 x 1.6 x 0.46 inch case without a heatsink. Advantages of
the NFC20 include increased power density, fixed switching frequency, tight line
and load regulation, reduced board area requirements and many standard
features. Among these features are remote on/off control, overvoltage
protection, synchronization function and an extended operating temperature
range option. Input voltage ranges of 18-36VDC and 36-72VDC mean that the
NFC20 is ideally suited to process control, industrial automation, distributed
power and telecommunications applications.
SPECIFICATION All specifications are typical at nominal input, full load at 25°C unless otherwise stated
OUTPUT SPECIFICATIONS
Voltage accuracy
±0.5%
Voltage adjustability All outputs
±10%
Line regulation
LL to HL, single output
LL to HL, dual output
±0.1%
±0.1%
Load regulation
FL to NL, single output ±0.5%, max.
FL to NL, dual output ±3.0%, max.
Ripple and noise
(5Hz to 20MHz)
Singles
Duals
75mV pk-pk, max.,
20mV rms
100mV pk-pk, max.
Temperature coefficient
±0.02%/°C max.
Overvoltage protection Single output
Dual output
125% Vout
125% Vout total
Short circuit protection (See Note 7)
(Clamp)
Continuous
automatic recovery
INPUT SPECIFICATIONS
Input voltage range
24VDC
48VDC
18 to 36VDC
36 to 72VDC
No load input current
20mA
Input filter
(See Note 5)
External capacitor
Surge protection
24VDC
48VDC
50V for 100ms
100V for 100ms
Remote ON/OFF
Logic compatibility
Logic ON
Logic OFF
CMOS/TTL
Logic high or open
Logic low or Jumper
pin 2 and 4
Frequency
synchronization
Switching frequency
±10%
Synchronization
function
Negative going pulse
on pin 4, max. 25%
duty cycle
PAGE 120
GENERAL SPECIFICATIONS
Efficiency
83% typical
Isolation voltage
Input/output
1000VAC/710VDC
Switching frequency Fixed
200kHz ±5.0%
Approvals and
standards
VDE0805, EN60950
IEC950, UL1950
CSA C22.2 No. 950
Case material
Aluminum alloy, hard
black anodized finish
Cover material
10% glass reinforced
polyetherimide GE ULTEM
#2110 or equivalent
Material flammability
UL94V-0
Weight
45g (1.6oz)
MTBF
MIL-HDBK-217F
260,000 hours
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Operating ambient -25°C to +60°C
Option (See Note 6) -40°C to +60°C
Non-operating amb. -55°C to +125°C
Max. case temperature, +110°C max.
Derating
See curve
Cooling, vertical mount
Free air
convection cooled
DERATING CURVE
Output Power (Watts)
20W
0
-40° C -20° C
0° C 20° C 40° C 60° C
Ambient Temperature
80° C
105° C
100° C