BXA3 Series
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The BXA3 Series of DC/DC converters is designed to offer the optimum
cost/benefit power solution for a wide variety of applications including public
and private telecommunications, industrial systems and process and test
equipment. The series consists of 9 models with input voltages of 9-18VDC, 18-
36VDC and 36-75VDC, and offers standard output voltages of 3.3V, 5V, 12V and
15V in single and dual output configurations. Continuous short circuit protection,
overvoltage protection, 60mV output ripple and EN55022 level A conducted
noise compliance minimize design-in time, cost and eliminate the need for
external components.
International Safety Standard Approvals
All specifications are typical at nominal input, full load at 25°C unless otherwise stated
DC/DC CONVERTERS
OUTPUT SPECIFICATIONS
Voltage accuracy
Line regulation
Load regulation
Ripple and noise
(5Hz to 20MHz)
Temperature coefficient
Over voltage protection
Short circuit protection
INPUT SPECIFICATIONS
Input voltage range
Input filter
Reverse voltage
protection
Max. input rise
and fall time
3 Watts in DIL Package
9 models including 3.3VDC output
Wide input ranges 9-18V, 18-36V, 36-75V
EN55022 conducted emissions level A (optional)
Continuous short circuit protection
Operating temperature range -25°C to +105°C
Input voltage range to ETS300-132-2
UL, VDE and CSA safety approvals
VDE0805/EN60950/IEC950 Licence No. 5856
UL1950 File No. E136005
CSA C22.2 No. 950 File No. LR41062C
S i n g l e a n d d u a l o u t p u t
LL to HL, all outputs
Full load to no load
+5V output
All others
Clamp diode
12VDC
24VDC
48VDC
Suffix ‘-F’ (See Note 5)
(See Note 7)
Output remains within
specification
3W Wide Input DC/DC Converters
100mV pk-pk, max.,
automatic recovery
60mV pk-pk, max.,
±0.02%/°C, max.
18 to 36VDC
36 to 75VDC
9 to 18VDC
Continuous
135% Vout
15mV rms
15mV rms
Pi type
±1.0%
±2.5%
±2.5%
5V/ms
Yes
EMC CHARACTERISTICS
Conducted emissions
GENERAL SPECIFICATIONS
Efficiency
Isolation voltage
Switching frequency
Approvals and
standards
Case material
Material flammability
Weight
MTBF
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Relative humidity
Altitude
Vibration
EN55022, FCC part 15
Suffix ‘-F’ versions
(See Notes 5 and 6)
Input/output
Variable
MIL-HDBK-217F
Operating ambient
(See derating curve)
Non-operating amb
Cooling
Non-condensing
Operating
Non operating
5Hz to 500Hz
File Name: bxa3.pdf Rev: 10 August 2005
UL1950, CSA C22.2 No. 950
VDE0805, EN60950, IEC950
SPECIFICATIONS
2 YEAR WARRANTY
Free air convection
2.5G rms (approx.)
-25°C to +105°C
-40°C to +105°C
10,000 feet max.
40,000 feet max.
200kHz to1MHz
Non-conductive
5% to 95% RH
800,000 hours
UL94V-0 min.
black plastic
15g (0.53oz)
See table
500VDC
Level A
cooled
1