BXA40 Series
DC-DC CONVERTERS
Single output
40 W Wide Input DC-DC Converters
1
•
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
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.
All specifications are typical at nominal input, full load at 25 °C unless otherwise stated
2 YEAR WARRANTY
SPECIFICATIONS
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
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
criteria 1
criteria 1
criteria 1
criteria 1
criteria 1
criteria 1
Perf.
Perf.
Perf.
Perf.
Perf.
Perf.
Temperature coefficient
Overvoltage protection
Short circuit protection
Transient response
Voltage accuracy
Remote sense
(See Note 8)
GENERAL SPECIFICATIONS
Efficiency
Isolation voltage
Switching frequency
Approvals and
standards
Case material
Material flammability
Weight
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)
MIL-HDBK-217F
500,000 hours
2.2 x 2.2 x 0.5 inches
55.9 x 55.9 x 12.7 mm
±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
INPUT SPECIFICATIONS
Input voltage range
Reverse voltage
protection
Max. input rise and
fall time
Start-up time
Remote ON/OFF
Logic compatibility
ON
OFF
48 V
24 Vin nominal
48 Vin nominal
18-36 Vdc
36-75 Vdc
(See Note 5)
5 V/ms
ETS300-132
30 ms typ.
CMOS/TTL
Open-circuit
<1 Vdc
MTBF
Size
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Baseplate operating -40 °C to +105 °C
temperature
Non-operating
-55 °C to +105 °C
No air flow, no heatsink
No air flow, with heatsink
8.5 °C/W
7.2 °C/W
Thermal impedance
(See Note 6)
File Name: bxa40s.pdf Rev (02): 08 Dec 2005
BXA40 Series
DC-DC CONVERTERS
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
Single output
40 W Wide Input DC-DC Converters
2
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
INPUT
CURRENT
70 mA
40 mA
40 mA
30 mA
30 mA
(1)
TYPICAL
EFFICIENCY
75%
81%
77%
82%
87%
REGULATION
LINE
(2)
MODEL
(3)
LOAD
NUMBER
(12,14,15)
(8)
0.3%
0.3%
0.3%
0.3%
0.3%
1.0%
1.0%
1.0%
1.0%
1.0%
BXA40-24S3V3-SMJ
BXA40-24S05-MJ
(8)
(8)
BXA40-48S2V9-SMJ
BXA40-48S05-MJ
(8)
BXA40-48S12-MJ
Notes
1
2
3
4
5
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.
6
7
8
PIN CONNECTIONS
PIN NUMBER
1
2
3
4
5
6
7
8
9
SINGLE OUTPUT
+ Input
– Input
Control
No Connection
- Sense
+ Sense
(8)
(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
File Name: bxa40s.pdf Rev (02): 08 Dec 2005
BXA40 Series
DC-DC CONVERTERS
0.15
(3.82)
Single output
40 W Wide Input DC-DC Converters
3
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
1.90
(48.26)
1.25
(31.76)
0.60
(15.24)
0.2
(5.08)
0.019
(0.50)
3
0.043
±0.003(1.02 ±0.05)
Diameter Typ.
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)
1.90
(48.26)
2.20
±0.02
(55.90
±0.50)
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)
BOTTOM VIEW
ALL DIMENSIONS IN INCHES (mm)
TOLERANCE :
±
0.004 (0.1)
(Unless otherwise specified)
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
Datasheet © Artesyn Technologies® 2005
The information and specifications contained in this datasheet 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.
Please consult our website for the following items:
Design Note
www.artesyn.com
File Name: bxa40s.pdf Rev (02): 08 Dec 2005
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