BXF250 Series
DC/DC CONVERTERS
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Single output
90-165W Wide Input DC/DC Converters
1
Board mounted full brick with industry standard footprint
Adjustable output voltage with output currents of 50A
No minimum load required
2:1 input range for battery powered applications
Synchronizable and parallelable with load sharing
Overtemperature and short circuit protection
Current monitor and power good signal
Remote ON/OFF
ISO9001 certified manufacturing facilities
BXF250 Series high power density DC/DC converters can provide up to 50A output
current and have an industry-standard footprint, measuring just 2.40 x 4.60 x 0.52 inches.
The converters are equally suitable for new designs or as replacement power sources in
existing equipment. BXF250 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 BXF250 Series is approved by UL, CSA and VDE.
2 YEAR WARRANTY
All specifications are typical at nominal input, full load at 25°C unless otherwise stated
SPECIFICATIONS
OUTPUT SPECIFICATIONS
Voltage adjustability
Set point accuracy
Line regulation
Load regulation
Minimum load
Overshoot
Undershoot
Ripple and noise
Temperature coefficient
Transient response
Remote sense
INPUT SPECIFICATIONS
Input voltage range
Input current
Input current (max.)
Input reflected ripple
48VDC nominal
No load
Remote OFF
(See Note 3)
(See Note 5)
36 to 75VDC
65mA max.
15mA max.
See table
14mA pk-pk
(See Note 7)
1.2VDC max.
Open circuit
35V typ.
33V typ.
2.5ms typ.
1ms typ.
Recovery time (See Note 2)
Peak deviation
At turn-on and turn-off
5Hz to 20MHz (See Note 1)
Model specific
±0.5% typ., ±1.6% max.
Low line to high line
Full load to min. load
±0.1% typ.
±0.15% typ.
0A
0V
0V
20mV rms
±0.01%/°C
500µs
2.0%
EMC CHARACTERISTICS
Conducted emissions
(See Note 8)
Bellcore 332
FCC part 15
EN55022, CISPR22
Level A
Level A
Level A
GENERAL SPECIFICATIONS
Efficiency
Isolation voltage
Input/case
Input/output
Output/case
Fixed
See table
1500VDC
1500VDC
1500VDC
550kHz typ.
VDE0805, EN60950, IEC950
UL1950, CSA C22.2 No. 950
Aluminium baseplate
and plastic casing
UL94V-0
200g (7.06oz)
Bellcore 332
MIL-HDBK-217F
@ 40°C, 100% FL
>1,000,000 hours
>200,000 hours
Switching frequency
Approvals and
standards (See Note 4)
Case material
Material flammability
Weight
MTBF
0.5VDC transmission
line drop compensation
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Altitude
Vibration
Operating case temp. -40°C to +100°C
Non-operating
-55°C to +125°C
Operating
Non-operating
5Hz to 500Hz
10,000 feet max.
40,000 feet max.
2.4G rms (approx.)
Active low remote ON/OFF
Logic compatibility
ON
OFF
Undervoltage lockout
Start-up time
(See Note 6)
48Vin: power up
48Vin: power down
Power up
Remote ON/OFF
File Name: BXF250.PDF Rev: 18 Oct 2000
ARTESYN [ ARTESYN TECHNOLOGIES ]
