DC/DC CONVERTERS
66-100W Wide Input DC/DC Converters
1
2 YEAR WARRANTY
BXB100 Series
Single output
Industry standard footprint
High power density (36.5W/in3)
MTBF >1.4 million hours (Bellcore 332)
Input voltage to ETS300-132-2
Adjustable output voltage
No minimum load required
Separate case ground pin
Undervoltage lockout (UVLO)
UL, VDE and CSA safety approvals
The BXB100 Series are high power density DC/DC converters packaged in the industry
standard footprint (2.40 x 2.28 x 0.50 inches) to give designers optimum choices when
specifying for both new and replacement designs. Suitable for a wide range of
applications in nearly any industry, the BXB100 was particularly designed with
communication and distributed power applications in mind. Using Bellcore 332, the
MTBF is greater than 1,400,000 hours. Aluminum baseplate technology with four
threaded M3 inserts makes heatsink attachment and optimum thermal management
easy. The BXB100 series are approved to IEC950 by UL, CSA and VDE.
All specifications are typical at nominal input, full load at 25°C unless otherwise stated
INPUT SPECIFICATIONS (continued)
Undervoltage lockout
24Vin: power up
17V
24Vin: power down
16V
48Vin: power up
34V
48Vin: power down
32.5V
Start-up time
Power up
20ms
(See Note 8)
Remote ON/OFF
20ms
EMC CHARACTERISTICS
Conducted emissions
EN55022 (See Note 3)
Level A
(See Note 3)
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
500kHz typ.
Approvals and
VDE0805, EN60950, IEC950
standards (See Note 5)
UL1950, CSA C22.2 No. 950
Case material
Aluminum baseplate
with plastic case
Material flammability
UL94V-0
Weight
110g (3.88oz)
MTBF
Bellcore 332
1,400,000 hours
MIL-HDBK-217F
580,000 hours
@ 40°C, 100% load
min.
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
60% to 110%
Set point accuracy
±1.0%
Line regulation
Low line to high line
±0.05%
Load regulation
Full load to min. load
±0.10%
Minimum load
0%
Overshoot
At turn-on and turn-off
None
Undershoot
None
Ripple and noise
3.3V and 5V
75mV pk-pk,
(5Hz to 20MHz)
20mV rms
(See Note 1)
12V and 15V
100mV pk-pk,
30mV rms
Temperature coefficient
±0.01%/°C
Transient response
±2.0% max. deviation
(See Note 2)
170s recovery
to within ±1.0%
Remote sense
0.5VDC transmission
line drop compensation
INPUT SPECIFICATIONS
Input voltage range
24Vin nominal
18 to 36VDC
48Vin nominal
36 to 75VDC
Input current
No load
100mA max.
Remote OFF
20mA max.
Input current (max.)
48V models
4A max. @ Io max. and
(See Note 4)
Vin = 0 to 75V
Input reflected ripple
(See Note 6)
5mA pk-pk
Active low remote ON/OFF
(See Note 7)
Logic compatibility
Open collector ref to -input
ON
1.2VDC max.
OFF
Open circuit
SPECIFICATIONS
File Name: BXB100S.PDF Rev: 02 Oct 2002