
DC/DC CONVERTERS
15W Wide Input DC/DC Converters
1
2 YEAR WARRANTY
BXA15 Series
Single and dual output
Pin-compatible with BXA30 series
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 compliant
Fixed frequency operation at 350kHz
MTBF in excess of 7,005,000 hours (demonstrated)
Basic insulation system
The BXA15 Series, comprising 15 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, 9-18VDC, 18-36VDC and 36-75VDC, 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 1500VDC, the 48VDC models are
ideal for telecommunications applications. The 12V and 24V models are particularly suited to
industrial, mobile telecom and test equipment applications, offering EN61000-4-2, -3, -4, -5
and -6 immunity compliance. 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) (48V)
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
1500VDC
Basic insulation
Input/case, 48V models
1500VDC
Switching frequency
Fixed
350kHz
Approvals and
VDE0805, EN60950
standards
IEC950, UL1950, UL1459
(See Note 9)
CSA C22.2 No. 950
Case material
Aluminum substrate
with plastic case
Material flammability
UL94V-0
Weight
120g (4.24oz)
MTBF (See Note 8)
Demonstrated @ 25°C
7,005,000 hours
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Baseplate operating
-25°C to +100°C
temperature
(See Notes 7)
Non-operating
-55°C to +100°C
Thermal impedance
Free air convection
6.5°C/W
baseplate to air
Thermal impedance
(See Note 7)
5.2°C/W
with heatsink
OUTPUT SPECIFICATIONS
Voltage adjustability
±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
5.0V
60mV pk-pk
20MHz bandwidth
All others
100mV pk-pk
All models
20mV rms
Temperature coefficient
±0.02%/°C
Overvoltage protection
Transient
135% Vout
Short circuit protection
Singles
Continuous
Duals (single short)
(See 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
12Vin nominal
9 to 18VDC
24Vin nominal
18 to 36VDC
48Vin nominal
36 to 75VDC
Reverse voltage
(See Note 6)
Yes
protection
Max. input rise
48V
5V/ms
and fall time
ETS300-132
Remote ON/OFF
Logic compatibility
CMOS/TTL
ON
Open circuit
OFF
<1VDC
SPECIFICATIONS
File Name: bxa15_s_d_obs.pdf Rev: 23 Aug 2005