DC/DC CONVERTERS 10W DC/DC Converters 1
2 YEAR WARRANTY
CXA10 Series
Single and dual output
•4:1 input voltage range
•Approved to EN60950, UL1950, CSA C22.2 No. 950
•Operating ambient temperature of -40°C to +70°C 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 25°C 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 @ 25°C
ENVIRONMENTAL SPECIFICATIONS
Thermal performance Operating ambient -40°C to +70°C,
temperature See curves
Non-operating -55°C to +105°C
ETS 300 019-2-3 Classes T3.1 to T3.5
Air temperature Low: IEC 68-2-1 -40°C
High: IEC 68-2-2 +70°C
Change: IEC 68-2-14 -40°C to +70°C
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 <20mΩ 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
NOTICE SOME MODELS LISTED IN THIS
DOCUMENT HAVE BEEN DISCONTINUED
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.
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
1Negative output voltage deviation when positive load is changed.
2Guaranteed minimum output voltage range.
3TVS spec: See Application Note 100 on our web site.
4On dual output models, OVP protection is on negative outputs only.
5With respect to minimum input voltage.
6With one external ITW Paktron 4.7µF film capacitor across the input.
7For 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.
8Unit provides basic insulation up to the 75VDC maximum input voltage.
9Maximum 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
Single and dual output
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)
Ø0.040 ±0.002
Dia. (Ø1.02 ±0.05)
0.020
(0.50)
0.100
(2.54)
345
621
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
4No 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.
