Embedded Power for
Business-Critical Continuity
BXA40 Series
Single output
Total Power:
40W
Input Voltage: 18 - 36VDC
36 - 75VDC
# of Outputs: Single
Rev.03.08.07
bxa40s
1 of 4
Special Features
• Pin-compatible with
NFC40 Series
• Meets telecom power supply
interface standard
ETS300-132-2
• EN60950, CSA C22.2 No. 950
and UL1950 safety approvals
• EN61000-4-2, -3, -4, -5, -6
immunity compliant
• Fixed frequency operation at
350 kHz typ.
• MTBF in excess of
500,000 hours
• Basic insulation system with
1500 Vdc isolation
• Remote sense on low voltage
logic outputs
• Output voltage trim
• Available RoHS compliant
• 2 year warranty
The BXA40 Series providing up to 40 Watts, 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
Vdc to 36 Vdc and 36 Vdc to 75 Vdc, and is available with single
outputs from 2.9 V to 12 V. The BXA40 series is designed to meet
ETSI telecoms interface standards ETS300-132-2. Together with
internal filtering, safety approval to IEC950 and basic insulation,
the 48 V models are ideal for telecommunications applications.
The 24 V 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, indefinite short circuit protection, remote
enable and remote sense.
Safety
VDE0805/EN60950/IEC950
File No. 14501-3336-7009
Licence No. 6296
UL1950 File No. E174104
CSA C22.2 No. 950
File No. LR41062C
Embedded Power for
Business-Critical Continuity
Specifications
All specifications are typical at nominal input, full load at 25
°
C unless otherwise stated.
Rev.03.08.07
bxa40s
2 of 4
OUTPUT SPECIFICATIONS
Voltage adjustability
Line regulation
Load regulation
Ripple and noise
(20 MHz bandwidth)
Low line to high line
Full load to no load
2.9 V and 3.3 V
5V
12 V
All models
±10%
±0.3%
±1.0%
30 mV pk-pk
50 mV pk-pk
100 mV pk-pk
20 mV rms
±0.02%/°C
(See Note 9)
(See Note 10)
25% to 100% load
(See Note 11)
135% Vout
Continuous
4.0%
EMC CHARACTERISTICS
Conducted emissions
Radiated emissions
ESD air
ESD contact
Surge
Fast transients
Radiated immunity
Conducted immunity
GENERAL SPECIFICATIONS
Efficiency
Isolation voltage
Switching frequency
±1.0% ≤5 V, ±2.0% ≥12 V
Compensated line drops
up to 0.5 V on 5 V models
Compensated line drop up to
300 mV on 2.9 V and 3.3 V models
Approvals and
standards
Case material
Material flammability
Weight
24 Vin nominal
48 Vin nominal
18-36 Vdc
36-75 Vdc
(See Note 5)
48 V
5 V/ms
ETS300-132
30 ms typ.
CMOS/TTL
Open-circuit
<1 Vdc
Thermal impedance
(See Note 6)
MTBF
Size
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Baseplate operating
temperature
Non-operating
-40 °C to +105 °C
-55 °C to +105 °C
8.5 °C/W
7.2 °C/W
MIL-HDBK-217F
Input/output
Input/case
Fixed
See table
1500 Vdc
1500 Vdc
350 kHz typ.
EN60950, UL1950
CSA C22.2 No. 950
Aluminum substrate
with plastic case
UL94V-0
85 g (3.0 oz)
500,000 hours
2.2 x 2.2 x 0.5 inches
55.9 x 55.9 x 12.7 mm
EN55022, FCC part 15,
(See Notes 4 and 13)
EN55022, FCC part 15
EN61000-4-2, level 3
EN61000-4-2, level 4
EN61000-4-5, level 3
EN61000-4-4, level 3
EN61000-4-3, level 3
EN61000-4-6, level 3
Level B
Level A
Perf. criteria 1
Perf. criteria 1
Perf. criteria 1
Perf. criteria 1
Perf. criteria 1
Perf. criteria 1
Temperature coefficient
Overvoltage protection
Short circuit protection
Transient response
Voltage accuracy
Remote sense
(See Note 8)
INPUT SPECIFICATIONS
Input voltage range
Reverse voltage
protection
Max. input rise and
fall time
Start-up time
Remote ON/OFF
Logic compatibility
ON
OFF
No air flow, no heatsink
No air flow, with heatsink
Embedded Power for
Business-Critical Continuity
Specifications Contd.
Rev.03.08.07
bxa40s
3 of 4
INPUT
VOLTAGE
18-36 Vdc
18-36 Vdc
36-75 Vdc
36-75 Vdc
36-75 Vdc
OUTPUT
VOLTAGE
3.3 V
5V
2.9 V
5V
12 V
OUTPUT
CURRENT (MAX.)
7A
8A
6.9 A
8.0 A
3.3 A
INPUT
CURRENT
(1)
70 mA
40 mA
40 mA
30 mA
30 mA
TYPICAL
EFFICIENCY
75%
81%
77%
82%
87%
REGULATION
LINE
(2)
LOAD
(3)
0.3%
0.3%
0.3%
0.3%
0.3%
1.0%
1.0%
1.0%
1.0%
1.0%
MODEL
NUMBER
(12,14,15)
BXA40-24S3V3-SMJ
(8)
BXA40-24S05-MJ
(8)
BXA40-48S2V9-SMJ
(8)
BXA40-48S05-MJ
(8)
BXA40-48S12-MJ
Notes
1
2
3
4
5
6
Nominal line, at no load.
Low line to high line at full load.
Full load to no-load at nominal line.
For conducted noise operation of the BXA40 to VDE0871, VDE0878 and
EN55022 level B, see BXA40 Design Note 101.
Reverse voltage protection can be implemented by putting a slow blow fuse on
the positive input rail. Rate the fuse at 200 Vdc,1.5 A for 48 Vdc inputs and 100
V, 4.5 A for 24 Vdc input units.
The maximum operating ambient temperature, without derating depends on
internal power dissipation and hence efficiency and cooling method. Download
BXA40 Design Note 101 which provides detailed thermal calculations and
design-in hints from the Artesyn website.
Do not exceed a dv/dt rate of 100 V per second at the trim pin input if output
current is less than 0.4% lo max.
Remote sense is offered as standard on the 2.9 V and 3.3 V products. The
BXA40-24S05J and BXA40-48S05J come with remote sense as an option.
Remote sense design is designated by the suffix ‘-S’ e.g.
BXA40-48S05-SMJ
(for
units with metric inserts),
BXA40-48S05-SJ
(for units with imperial inserts). For
models without remote sense option, pin 5 and pin 6 are absent.
9
10
11
12
Overvoltage protection is 118% on 3.3 V output model.
For 2.9 V output, no short circuit protection above 90
°
C baseplate temp.
Transient response, 25% to 100% load, 10% for 2.9 V and 3.3 V models.
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.
13
An external filter capacitor is necessary for safe operation of the 24 V input
models. It is also suggested that an external filter capacitor be used on the 48 V
input models. A 4 μF (or greater) film capacitor such as: ITW Paktron Capstick
series, part number 405K100CS4 4 μF/100 V is recommended, if filtering is not
used. See BXA40 Design Note 101.
14
The ‘J’ suffix indicates that these parts are Pb-free (RoHS 6/6) compliant.
TSE RoHS 5/6 (non Pb-free) compliant versions may be available on special
request, please contact your local sales representative for details.
15
NOTICE: Some models do not support all options. Please contact your local
Artesyn representative or use the on-line model number search tool at
http://www.artesyn.com/powergroup/products.htm to find a suitable
alternative.
7
8
PIN CONNECTIONS
PIN NUMBER
1
2
3
4
5
6
7
8
9
SINGLE OUTPUT
+ Input
– Input
Control
No Connection
- Sense
(8)
+ Sense
(8)
EXTERNAL OUTPUT TRIMMING
Output can be externally trimmed
by ±10% using either method shown below.
7
7
TRIM
DOWN
9
TRIM
UP
8
RT1
9
OR
RT2
10KΩ
TRIMPOT
8
+ Output
Common
Trim
Embedded Power for
Business-Critical Continuity
Rev.03.08.07
bxa40s
4 of 4
Americas
0.15
(3.82)
1.90
(48.26)
1.25
(31.76)
0.60
(15.24)
0.2
(5.08)
0.019
(0.50)
5810 Van Allen Way
Carlsbad, CA 92008
USA
Telephone: +1 760 930 4600
Facsimile: +1 760 930 0698
Europe (UK)
3
0.043
±0.003(1.02 ±0.05)
Diameter Typ.
1.90
(48.26)
2
1
Metric (Suffix '-M'):
M3 Tap Thru. 4 places or
Imperial (No '-M' suffix) 4-
40 UNC (Optional)
0.256 (6.50) Diameter
Stand-off (4 Places)
9
8
7
6
5
4
0.2
(5.08)
1.80
(45.72)
2.20
±0.02
(55.90
±0.50)
Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX
United Kingdom
Telephone: +44 (0) 1384 842 211
Facsimile: +44 (0) 1384 843 355
Asia (HK)
16th - 17th Floors, Lu Plaza
2 Wing Yip Street, Kwun Tong
Kowloon, Hong Kong
Telephone: +852 2176 3333
Facsimile: +852 2176 3888
0.50
(12.70)
0.15
(3.90)
0.3
(7.62)
0.1
(2.54)
0.05
(1.27)
0.15
(3.82)
0.6
(15.24)
0.8
0.5
(20.32)
(12.70)
2.20
±0.02
(55.90
±0.50)
For global contact, visit:
www.powerconversion.com
technicalsupport@powerconversion.com
While every precaution has been taken to ensure
accuracy and completeness in this literature, Emerson
Network Power assumes no responsibility, and disclaims
all liability for damages resulting from use of this
information or for any errors or omissions.
BOTTOM VIEW
ALL DIMENSIONS IN INCHES (mm)
TOLERANCE :
±
0.004 (0.1)
(Unless otherwise specified)
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