International Safety Standard Approvals

VDE0805/EN60950/IEC950 File No. 10401-3336-1082

UL1950 File No. E136005

CSA C22.2 No. 950 File No. LR41062C

NFC40 SERIES

Single and triple output

[ 2 YEAR WARRANTY ]

• 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

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.

PAGE 142

US Patent No. 4621311

OUTPUT SPECIFICATIONS

Voltage adjustability

All outputs (See Note 8)

±10%

Total error band

Single outputs

±2% typ., ±3% max.

(See Note 1)

Auxiliary outputs ±3% typ., ±5% max.

Ripple and noise

5Hz to 20MHz

100mV pk-pk, max.

All outputs

20mV rms

Transient response

0.25% FL to 0.5% FL ±2% max. dev.,

100µs recovery

Temperature coefficient Single outputs

±0.02%/°C max.

Auxiliary outputs

±0.03%/°C max.

Overvoltage protection

Single output

Clamp type

Triple output

See table

Short circuit protection

Continuous

automatic recovery

Minimum main output

Singles

0A

current

Triples, to maintain auxiliary

0.5A

output regulation

INPUT SPECIFICATIONS

Input voltage range

24V

18 to 36VDC

48V

36 to 72VDC

Input filter

(See Note 9)

External capacitor

Remote ON/OFF

Logic compatibility

CMOS and TTL

ON

>1.5V or open collector

OFF

<0.4V

Synchronization function

Operating frequency control

Frequency control range

±10%

Sync signal

Negative-going pulse,

maximum 25% of duty cycle

Logic compatibility

CMOS/TTL

GENERAL SPECIFICATIONS

Efficiency

See table

80%, min.

Isolation voltage

Input/output

500VAC, 710VDC, min.

Switching frequency

Fixed

300kHz ±5.0%

Approvals and

VDE0805, EN60950

standards

IEC950, UL1950

CSA C22.2 No. 950

Case material

Black coated metal with

Non-conductive base

Material flammability

UL94V-0

Weight

80g (2.8oz)

ENVIRONMENTAL SPECIFICATIONS

Thermal performance

Operating ambient

See curves

(See Note 11)

Operating Case

-25°C to +105°C

Non-operating

-55°C to +125°C

Extended temp.,

-40°C to +105°C

option, case (Note 10)

Heatsink option (Note 5)

See curves

Derating

See curves for

baseplate cooling details

Relative humidity

Non-condensing

5% to 95% RH

Altitude

Operating

10,000 feet max.

Non operating

40,000 feet max.

Data Sheet © Artesyn Technologies® 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.