DC/DC CONVERTERS 264W Wide Input DC/DC Converters

1

2 YEAR WARRANTY

BXF400 Series

Single output

BXF400 Series high power density DC/DC converters can provide up to 80A output

current and have an industry-standard footprint, measuring just 2.40 x 4.60 x 0.52 inches.

These converters have the highest output current rating of any comparably-sized

products on the market, are equally suitable for new designs or as replacement power

sources in existing equipment. BXF400 Series converters are designed specifically for

redundant and distributed power systems in the computer and telecommunications

sectors, but their feature-rich specifications make them suitable for a very wide range of

applications. Using Bellcore 332, the MTBF is over 1,000,000 hours. Aluminium baseplate

technology and four threaded M3 inserts make heatsink attachment and thermal

management easy. The BXF400 Series is approved by UL, CSA and VDE.

All specifications are typical at nominal input, full load at 25°C unless otherwise stated

EMC CHARACTERISTICS

Conducted emissions

Bellcore 332

Level A

(See Note 7)

FCC part 15

Level A

EN55022, CISPR22

Level A

GENERAL SPECIFICATIONS

Efficiency

See table

Isolation voltage

Input/case

1500VDC

Input/output

1500VDC

Output/case

1500VDC

Switching frequency

Fixed

850kHz typ.

Approvals and

VDE0805, EN60950, IEC950

standards (See Note 4)

UL1950, CSA C22.2 No. 950

Case material

Aluminium baseplate

and plastic casing

Material flammability

UL94V-0

Weight

200g (7.06oz)

MTBF

Bellcore 332

>1,000,000 hours

MIL-HDBK-217F

>200,000 hours

@ 40°C, 100% FL

ENVIRONMENTAL SPECIFICATIONS

Thermal performance

Operating case temp. -40°C to +100°C

Non-operating

-55°C to +125°C

Altitude

Operating

10,000 feet max.

Non-operating

40,000 feet max.

Vibration

5Hz to 500Hz

2.4G rms (approx.)

OUTPUT SPECIFICATIONS

Voltage adjustability

Model specific

Set point accuracy

±0.5% typ., ±1.6% max.

Line regulation

Low line to high line

±0.10% typ.

Load regulation

Full load to min. load

±0.15% typ.

Minimum load

0%

Overshoot

0V

Undershoot

At turn-on and turn-off

0V

Ripple and noise

5Hz to 20MHz (See Note 1)

20mV

Temperature coefficient

±0.01%/°C

Transient response

Recovery time (See Note 2)

500µs

Peak deviation

500mV

Remote sense

0.5VDC transmission

line drop compensation

INPUT SPECIFICATIONS

Input voltage range

48Vin nominal

36 to 75VDC

Input current

No load

100mA max.

Remote OFF

20mA max.

Input current (max.)

(See Note 3)

12A max.

Input reflected ripple

(See Note 5)

35mA pk-pk

Active low remote ON/OFF

Logic compatibility

ON

1.2VDC max.

OFF

Open circuit

Undervoltage lockout

48Vin: power up

34.8V

48Vin: power down

33.1V

Start-up time

Power up

15ms

(See Note 6)

Remote ON/OFF

13ms

SPECIFICATIONS

File Name: bxf400.pdf Rev: 30 Mar 2006