BXA40 SERIES
Triple output
[ 2 YEAR WARRANTY ]
Meets telecom power supply interface standard
ETS300-132-2
EN60950, CSA950 and UL1950 safety approvals
EN61000-4-2, -3, -4, -5, -6 immunity compliant
Fixed frequency operation at 400kHz
MTBF in excess of 500,000 hours
Basic insulation system with 1500V isolation
Pin-compatible with NFC40 Series
The BXA40 Series providing up to 40 Watts, comprising 4 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 two wide input voltage ranges, 18-
36VDC and 36-75VDC, and is available with 5/12V and 5/15V triple outputs. The
BXA40 series is designed to meet ETSI telecoms interface standard ETS300-132-2. With
safety approval to IEC950 and basic insulation, the 48VDC models are ideal for
telecommunications applications. The 24V models are particularly suited to industrial and
test equipment applications, featuring EN61000-4-2, -3, -4, -5 and -6 immunity
compliance. Other features include low output ripple, overvoltage protection, short circuit
protection and remote enable.
SPECIFICATION
All specifications are typical at nominal input, full load at 25C unless otherwise stated
PAGE 140
OUTPUT SPECIFICATIONS
Line regulation
Main output
0.5%
(See Note 2)
Auxiliary output
2.0%
Load regulation
Main output
1.0%
(See Note 3)
Auxiliary output
3.0% typ.,
5.0% max.
Load cross regulation
Main output
1.0%
(See Note 4)
Aux. output
3.0% typ., 5.0% max.
Ripple and noise
Main output
50mV pk-pk
(20MHz bandwidth)
20mV rms
Auxiliary output
100mV pk-pk
20mV rms
Temperature coefficient
0.02%/C
Overvoltage protection
Main output
6.8V (nom.)
transorbs fitted
Auxiliary outputs
16/20V (nom.)
Short circuit protection
Main output
11A
(See Note 5)
Auxiliary output
5A
Transient response
25% to 100% load
4.0%
Voltage accuracy
Main output
1.0%
Auxiliary output
3.0%
Minimum Load
Main output
0.6A
Auxiliary outputs
0.03A/0.04A
INPUT SPECIFICATIONS
Input voltage range
24Vin nominal
18 to 36VDC
48Vin nominal
36 to 75VDC
Reverse voltage
External fuse
(See Note 7)
protection
Max. input rise and
48V
5V/ms
fall time
ETS300-132
Start-up time
30ms typ.
Remote ON/OFF
Logic compatibility
CMOS/TTL
ON
Open-circuit
OFF
<1VDC
EMC CHARACTERISTICS
Conducted emissions
EN55022, FCC part 15,
Level B
(See Notes 6, 9)
Radiated emissions
EN55022, FCC part 15
Level A
ESD air
EN61000-4-2, level 3
Perf. criteria 1
ESD contact
EN61000-4-2, level 4
Perf. criteria 1
Surge
EN61000-4-5, level 3
Perf. criteria 1
Fast transients
EN61000-4-4, level 3
Perf. criteria 1
Radiated immunity
EN61000-4-3, level 3
Perf. criteria 1
Conducted immunity
EN61000-4-6, level 3
Perf. criteria 1
GENERAL SPECIFICATIONS
Efficiency
See table
Isolation voltage
Input/output
1500VDC
Basic insulation, input/case
1500VDC
Switching frequency
Fixed
400kHz (typical)
Approvals and
EN60950, UL1950
standards (pending)
CSA C22.2 No. 950
Case material
Aluminum substrate
with plastic case
Material flammability
UL94V-0
Weight
85g typ. (3.0oz)
MTBF
MIL-HDBK-217F
500,000 hours
Size
2.2 x 2.2 x 0.5 inches
55.9 x 55.9 x 12.7 mm
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Baseplate operating -40C to +105C
temperature
Non-operating
-55C to +105C
Thermal impedance
No air flow, no heatsink
8.5C/W
(See Note 8)
No air flow, with heatsink
7.2C/W
Data Sheet Artesyn Technologies 2000
The information and specifications contained in this data sheet are believed to be correct at
time of publication. However, Artesyn Technologies accepts no responsibility for
consequences arising from printing errors or inaccuracies. Specifications are subject to
change without notice. No rights under any patent accompany the sale of any such product(s)
or information contained herein.
International Safety Standard Approvals
VDE0805/EN60950/IEC950 File No. 14501-3336-7009
Licence No. 6296
UL1950 File No. E174104
CSA C22.2 No. 950 File No. LR41062C
Notes
1
Nominal line, at no load.
2
Nominal line to high line, nominal line to low line.
3
Load regulation:
Main output (V1): 25 to 100% with 25% to 100% balanced on auxiliaries.
Auxiliary outputs (V2 and V3): 25% to 100% balanced on all outputs.
4
Cross regulation:
Main output 100% load, auxiliary 100%, other auxiliary 25% to 100%.
Auxiliary outputs (V2 and V3): main output 100% load, auxiliary 100%,
other auxiliary 25% to 100% or main output 25%, auxiliary 25%, other
auxiliary 25% to 100%.
5
Short circuit protection,
1 minute on auxiliary outputs.
6
For EMI compliance to EN55022 level B please consult factory for details.
For EMI compliance to EN55022 level A, refer to BXA40 Design Note 101.
7
Reverse voltage protection, refer to BXA40 Design Note 101.
8
The maximum operating ambient temperature, without derating depends
on internal power dissipation and module efficiency and cooling method.
Download BXA40 Design Note 101 which provides detailed thermal
calculations and design-in hints from the Artesyn website.
9
An external filter capacitor is necessary for safe operation of the 24V input
models. It is also suggested that an external filter capacitor be used on
the 48V input models. A 4F (or greater) film capacitor such as: ITW
Paktron Capstick series, part number 405K100CS4 4F/100V is
recommended, if filtering is not used. See BXA40 Design Note 101.
10 Units with the suffix `-M' at the end of the model number are offered as
standard with metric threaded inserts (M3). To order units with imperial
threaded inserts (4-40 UNC) please remove the suffix `-M' from the model
number. These inserts are used for bolting the unit to a PCB and/or fixing
heatsinks.
11 A top mounted heatsink kit is available for the BXA40. The heatsink may
be oriented parallel to or perpendicular to the direction of the pins, thus
providing optimum flexibility for cooling requirements. The order number
for the top mounted heatsink kit with metric screws is `NFC40-HTSK-T'.
The order number for the top mounted heatsink kit with imperial screws is
`NFC40-HTSK-T-I'.
INPUT
OUTPUT
OUTPUT
INPUT
TYPICAL
MODEL NUMBER
(10)
VOLTAGE
VOLTAGE
CURRENT (MAX.)
CURRENT
(1)
EFFICIENCY
18-36VDC
5V/12V
6A/0.4A
50mA
83%
BXA40-24T05-12-M
18-36VDC
5V/15V
6A/0.3A
50mA
83%
BXA40-24T05-15-M
36-75VDC
5V/12V
6A/0.4A
30mA
83%
BXA40-48T05-12-M
36-75VDC
5V/15V
6A/0.3A
30mA
83%
BXA40-48T05-15-M
PIN CONNECTIONS
PIN NUMBER
TRIPLE OUTPUT
1
+ Input
2
Input
3
Control
4
+ Output (V2)
5
Common
6
- Output (V3)
7
+ Output (V1)
8
- Output (V1)
9
No Connection
40 Watt
Wide input DC/DC converters
DC/DC CONVERTERS
|
40W DC/DC
PAGE 141
http://www.artesyn.com
BOTTOM VIEW
ALL DIMENSIONS IN INCHES (mm)
0.3
(7.62)
0.019
(0.50)
0.50
(12.70)
0.15
(3.90)
3
2
1
9
8
7
6
5
4
2.20
0.02
(55.90
0.50)
1.90
(48.26)
1.80
(45.72)
0.15
(3.82)
0.05
(1.27)
0.2
(5.08)
0.1
(2.54)
0.6
(15.24)
0.8
(20.32)
0.5
(12.70)
0.2
(5.08)
0.60
(15.24)
1.25
(31.76)
1.90
(48.26)
0.15
(3.82)
0.256 (6.50) Diameter
Stand-off (4 Places)
Metric (Suffix '-M'):
M3 Tap Thru. 4 places or
Imperial (No '-M' suffix) 4-
40 UNC (Optional)
1.02 (0.043)
Diameter Typ.
TOLERANCE :
0.004 (0.1)
(Unless otherwise specified)
2.20
0.02
(55.90
0.50)
5
Please consult our website for the following items: Design Note
DS_BXA40T_20000101.PDF
PDF 
ZIP