DC-DC CONVERTERS 3 W Wide Input DC-DC Converters 1
2 YEAR WARRANTY
BXA3 Series
Single and dual output
•3 Watts in DIL Package
•9 models including 3.3 Vdc output
•Wide input ranges 9 Vdc to 18 Vdc, 18 Vdc to 36 Vdc,
36 Vdc to 75 Vdc
•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
•Available RoHS compliant
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 Vdc to
18 Vdc, 18 Vdc to 36 Vdc and 36 Vdc to 75 Vdc, and offers standard output
voltages of 3.3 V, 5 V, 12 V and 15 V in single and dual output configurations.
Continuous short-circuit protection, overvoltage protection, 60 mV output ripple
and EN55022 level A conducted noise compliance minimize design-in time, cost
and eliminate the need for external components.
All specifications are typical at nominal input, full load at 25 °C unless otherwise stated
EMC CHARACTERISTICS
Conducted emissions EN55022, FCC part 15 Level A
Suffix ‘-F’ versions
(See Notes 5 and 6)
GENERAL SPECIFICATIONS
Efficiency See table
Isolation voltage Input/output 500 Vdc
Switching frequency Variable 200 kHz to1 MHz
Approvals and VDE0805, EN60950, IEC950
standards UL1950, CSA C22.2 No. 950
Case material Non-conductive
black plastic
Material flammability UL94V-0 min.
Weight 15 g (0.53 oz)
MTBF MIL-HDBK-217F 800,000 hours
ENVIRONMENTAL SPECIFICATIONS
Thermal performance Operating ambient -25 °C to +105 °C
(See derating curve)
Non-operating amb -40 °C to +105 °C
Cooling Free air convection
cooled
Relative humidity Non-condensing 5% to 95% RH
Altitude Operating 10,000 feet max.
Non operating 40,000 feet max.
Vibration 5 Hz to 500 Hz 2.5 G rms (approx.)
OUTPUT SPECIFICATIONS
Voltage accuracy ±1.0%
Line regulation LL to HL, all outputs ±2.5%
Load regulation Full load to no load ±2.5%
Ripple and noise +5 V output 60 mV pk-pk, max.,
(5 Hz to 20 MHz) 15 mV rms
All others 100 mV pk-pk, max.,
15 mV rms
Temperature coefficient ±0.02%/°C, max.
Over voltage protection Clamp diode 135% Vout
Short circuit protection Continuous
automatic recovery
INPUT SPECIFICATIONS
Input voltage range 12 Vdc 9-18 Vdc
24 Vdc 18-36 Vdc
48 Vdc 36-75 Vdc
Input filter Suffix ‘-F’ (See Note 5) Pi type
Reverse voltage (See Note 7) Yes
protection
Max. input rise Output remains within 5 V/ms
and fall time specification
File Name: bxa3.pdf Rev (02): 08 Dec 2005
SPECIFICATIONS
International Safety Standard Approvals
VDE0805/EN60950/IEC950 file No. 10401-3336-0098
Licence No. 5856
UL1950 File No. E136005
CSA C22.2 No. 950 File No. LR41062C