DC/DC CONVERTERS 10W DC/DC Converters
1
2 YEAR WARRANTY
CXA10 Series
S i n g l e a n d d u a l o u t p u t
4:1 input voltage range
Approved to EN60950, UL1950, CSA C22.2 No. 950
Operating ambient temperature of -40C to +70C in still air
High demonstrated reliability with conservative component deratings
Complies with ETS 300 019-1-3/2-3
Complies with ETS 300 132-2 input voltage and current requirements
Fully compliant with ETS 300 386-1
Pin compatible with NFC10 and BXA10 series
Basic insulation system (input to output)
The CXA10 series comprising of five different models delivers single and dual output
voltages covering 3.3V, 5V, 12V, 5V, 12 and 15V. The series has a wide 4:1 input voltage
range of 18 to 75VDC. The CXA10 has been designed as a competitive open-frame
alternative for the communications market. The product is supplied in the industry standard
footprint of 2.0 x 1.0 x 0.394 inches. Other product features include overvoltage protection,
short circuit protection and remote on/off. All components are placed in a fully automated
environment. Planar magnetics are used in the design to improve the reliability and reduce
the profile of the DC/DC converter. The series has full international safety approval to
EN60950 and UL1950 reducing system compliance costs, and it has a basic insulation
system from input to output making it suitable for a wide variety of applications.
All specifications are typical at nominal input, full load at 25C unless otherwise stated
EMC CHARACTERISTICS
ETS 300 386-1 table 5
Conducted emissions
EN55022 (See Note 6)
Level A
EN55022, external filter,
Level B
VDE0878, 48V models
Radiated emissions
See Application Note 100
ESD air
EN61000-4-2, level 3
ESD contact
EN61000-4-2, level 4
Surge (500V)
EN61000-4-5, level 3, 4
Fast transients
EN61000-4-4, level 3, 4
Radiated immunity
EN61000-4-3, level 3
Conducted immunity
EN61000-4-6, level 3
GENERAL SPECIFICATIONS
Efficiency
See table
Isolation voltage
Input/output test voltage
1500VDC
Switching frequency
Fixed
400kHz
Approvals and standards
EN60950, UL1950
(See Notes 7,8,9,10,11)
CSA C22.2 No. 950
Material flammability
UL94V-0
Weight
12g (0.42 oz)
MTBF
MIL-HDBK-217F
456,621 hours
(Representative model
Parts stress method
48S05 @ 48Vin)
Ground Benign @ 25C
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Operating ambient
-40C to +70C,
temperature
See curves
Non-operating
-55C to +105C
ETS 300 019-2-3
Classes T3.1 to T3.5
Air temperature
Low: IEC 68-2-1
-40C
High: IEC 68-2-2
+70C
Change: IEC 68-2-14
-40C to +70C
Relative humidity
IEC 68-2-56
10% to 100% RH
IEC 68-2-30
Condensation
Vibration, Class 3M5
IEC68-2-6
2 to 9Hz, 3mm disp.
9 to 200Hz 1g
MIL-STD-202F
Method 204 cond. A
Shock, Class 3M5
IEC-68-2-29
Method 213B cond. A
MIL-STD-202F
OUTPUT SPECIFICATIONS
Voltage accuracy
1.0%
Line regulation
Singles/dual positives
0.1%
(LL to HL)
Dual negatives
0.2%
Load regulation
Full load to
0.15%
(not incl. cross reg.)
minimum load
Min. load
All outputs
10%
Ripple and noise
3.3V and 5.0V
30mV pk-pk
20MHz bandwidth
All others
60mV pk-pk
All models
12mV rms
Temperature coefficient
0.01%/C
Overvoltage protection
Clamp type
(See table and Notes 3, 4)
Short circuit protection
Hiccup
Continuous
Short <20m
auto. recovery
Transient response
Min. load to FL
1.0%
Load cross regulation
Min. load to FL (See Note 1)
5.0%
INPUT SPECIFICATIONS
Input voltage range
48Vin nominal
18 to 75VDC
Input fuse
(See Note 10)
1.5A HRC
Max. input rise
48V ETS300 132-2
5V/ms
and fall time
UVLO turn ON voltage
(See Note 5)
94%
UVLO turn OFF voltage
(See Note 5)
86%
Remote ON/OFF
(See Note 7)
Logic compatibility
CMOS/TTL/Open Collector
ON
Open circuit
OFF
<1VDC
SPECIFICATIONS
File Name: CXA10.PDF Rev: 11 Jan 2002
Data Sheet Artesyn Technologies 2002
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.
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
Notes
1
Negative output voltage deviation when positive load is changed.
2
Guaranteed minimum output voltage range.
3
TVS spec: See Application Note 100 on our web site.
4
On dual output models, OVP protection is on negative outputs only.
5
With respect to minimum input voltage.
6
With one external ITW Paktron 4.7F film capacitor across the input.
7
For units with optional remote ON/OFF, please add the suffix `-S' to the
model number, e.g. CXA10-48S05-S. Additional alphanumeric suffixes
maybe added to indicate minor modifications not affecting the safety
approvals.
8
Unit provides basic insulation up to the 75VDC maximum input voltage.
9
Maximum continuous output power not to exceed 10 Watts. 7.9 Watts for
the 3V3 model.
10
User must provide 1.5A in line fuse in order to comply with safety
approvals.
11
Maximum temperature on components Q100, CR101, CR102 not to
exceed 120
C. See Application Note 100 for details.
CXA10 Series
S i n g l e a n d d u a l o u t p u t
DC/DC CONVERTERS 10W DC/DC Converters
2
Please consult our website for the following items:
Application Note
Longform Data Sheet
www.artesyn.com
File Name: CXA10.PDF Rev: 11 Jan 2002
INPUT
OUTPUT
OVERVOLTAGE
OUTPUT
TYPICAL
MODEL
VOLTAGE
VOLTAGE
PROTECTION
(3,4)
CURRENT (MAX.)
(9)
EFFICIENCY
NUMBER
(7)
18-75VDC
3.3V
3.9V
2.4A
78%
CXA10-48S3V3
18-75VDC
5.0V
6.8V
2.0A
81%
CXA10-48S05
18-75VDC
12V
16V
0.83A
83%
CXA10-48S12
18-75VDC
5V
6.8V
1.0A
81%
CXA10-48D05
18-75VDC
12V
16V
0.41A
83%
CXA10-48D12
18-75VDC
15V
19V
0.33A
81%
CXA10-48D15
DERATING CURVE
(Output Power %)
AMBIENT TEMPERATURE (
C)
Figure 1: Natural Convection (0.1m/s) Typical derating - See Application Note 100
100%
75%
50%
25%
0%
0
C 10
C 20
C 30
C 40
C 50
C 60
C 70
C 80
C 90
C 100
C
Output Power (%)
27.5%
-40
C -30
C -20
C -10
C
0.400
(10.16)
0.200
(5.08)
0.300
(7.62)
0.040
0.002
Dia. (1.02
0.05)
0.020
(0.50)
0.100
(2.54)
3
4
5
6
2
1
0.142 (3.60)
0.012 (0.3)
0.020 (0.5)
2.000
(50.80)
0.800
(20.32)
0.600
(15.24)
1.000 (25.40)
0.020 (0.5)
0.394
(10.00)
Max.
HEIGHT
ALL DIMENSIONS IN INCHES (mm)
Tolerance on all dimensions of
0.005 (0.127)
Unless otherwise specified
0.012 (0.3)
0.536 (13.60)
0.400
(10.16)
0.400
(10.16)
OPEN-
FRAME
PIN CONNECTIONS
PIN NUMBER
SINGLE OUTPUT
DUAL OUTPUT
1
+ Input
+ Input
2
Input
- Input
6 *
Remote ON/OFF
Remote ON/OFF
3
+ Output
+ Output
4
No Pin
Common
5
- Output
- Output
* Optional remote ON/OFF pin. Please add the suffix `-S' to the model
number, e.g. CXA10-48S05-S (See Note 7).
CAUTION: Hazardous internal voltages and high temperatures.
Ensure that unit is not user accessible.
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