DC-DC CONVERTERS 30 W Wide Input DC-DC Converters 1
2 YEAR WARRANTY
BXA30 Series
Single and dual output
•Designed to meet telecom power supply interface
standard ETS300-132-2
•UL, VDE and CSA safety approvals
•VDE0878 and EN55022 conducted emissions level A
•EN61000-4-2, -3, -4, -5, -6 immunity compliant
•Fixed frequency operation at 350 kHz
•MTBF in excess of 7,005,000 hours (demonstrated)
•Basic insulation system
• Available RoHS compliant
The BXA30 series, comprising 9 different models, has been conceived as an applications-
specific range of dc-dc converters, specifically addressing telecommunications, industrial
electronics, test equipment, mobile telecommunications and distributed power applications.
The series offers three wide input voltage ranges, 9 Vdc to 18 Vdc and 36 Vdc to 75 Vdc,
and is available in single and dual output versions. Designed to meet ETSI telecoms
interface standards ETS300-132-2 and BTR2511, together with internal filtering to EN55022
level A, safety approval to EN60950 and UL1950, and isolation of 1500 Vdc, the 48 Vdc
models are ideal for telecommunications applications. The 12 V models are particularly
suited to industrial, mobile telecom and test equipment applications, featuring EN61000-4-2,
-3, -4, -5 and -6 immunity compliant. Other features include low output ripple, overvoltage
protection, continuous short circuit protection, remote enable and remote sense.
All specifications are typical at nominal input, full load at 25 °C unless otherwise stated
EMC CHARACTERISTICS
Conducted emissions EN55022, FCC part 15 (Note 4) Level A
EN55022, FCC part 15 (Note 5) Level B
VDE0878 (Note 4) (48 V) Level A
Radiated emissions EN55022, FCC part 15 Level A
ESD air EN61000-4-2, level 3 Perf. criteria 2
ESD contact EN61000-4-2, level 4 Perf. criteria 2
Surge EN61000-4-5, level 3 Perf. criteria 2
Fast transients EN61000-4-4, level 3 Perf. criteria 2
Radiated immunity EN61000-4-3, level 3 Perf. criteria 2
Conducted immunity EN61000-4-6, level 3 Perf. criteria 2
GENERAL SPECIFICATIONS
Efficiency See table
Isolation voltage Input/output 1500 Vdc
Basic insulation input/case, 48 V models 1500 Vdc
Switching frequency Fixed 350 kHz
Approvals and VDE0805, EN60950
standards IEC950, UL1950
(See Note 12) CSA C22.2 No. 950
Case material Aluminum substrate
with plastic case
Material flammability UL94V-0
Weight 120 g (4.24 oz)
MTBF (See Note 9)
Demonstrated @ 25 °C
7,005,000 hours
ENVIRONMENTAL SPECIFICATIONS
Thermal performance Baseplate operating -25 °C to +100 °C
temperature,
(See Notes 6, 8)
Non-operating -55 °C to +100 °C
Thermal impedance Free air convection, 6.5 °C/W
baseplate to air
With heatsink (See Note 8) 5.2 °C/W
SPECIFICATIONS
File Name: bxa30sd.pdf Rev (02): 08 Dec 2005
OUTPUT SPECIFICATIONS
Voltage adjustability Singles ±10%
Line regulation LL to HL (single/dual) ±0.2%/±0.4%
Load regulation FL to NL (single/dual) ±0.2%/±0.4%
Ripple and noise 3.3 V 60 mV pk-pk
(20 MHz bandwidth) 5.0 V 50 mV pk-pk
All others 100 mV pk-pk
All models 20 mV rms
Temperature coefficient ±0.02%/°C
Overvoltage protection Transient 135% Vout
Short circuit protection Singles Continuous
Duals (single short) (See BXA15/30
Design Note 100)
Duals (dual short) Continuous
Transient response 25% to 100% load 4.0%
Voltage accuracy ±1.5%
Load cross regulation Dual output 3.0%
30% to 100% output variation
INPUT SPECIFICATIONS
Input voltage range 12 Vin nominal 9-18 Vdc
48 Vin nominal 36-75 Vdc
Reverse voltage Yes
protection (See Note 7)
Max. input rise and 48 V 5 V/ms
fall time ETS300-132
Remote ON/OFF
Logic compatibility CMOS/TTL
ON Open circuit
OFF <1 Vdc