CXA10 Series
DC/DC CONVERTERS
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10W DC/DC Converters
Single and dual output
1
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.
2 YEAR WARRANTY
All specifications are typical at nominal input, full load at 25°C unless otherwise stated
SPECIFICATIONS
OUTPUT SPECIFICATIONS
Voltage accuracy
Line regulation
(LL to HL)
Load regulation
(not incl. cross reg.)
Min. load
Ripple and noise
20MHz bandwidth
Temperature coefficient
Overvoltage protection
Short circuit protection
Short <20mΩ
Transient response
Load cross regulation
INPUT SPECIFICATIONS
Input voltage range
Input fuse
Max. input rise
and fall time
UVLO turn ON voltage
UVLO turn OFF voltage
Remote ON/OFF
Logic compatibility
ON
OFF
48Vin nominal
(See Note 10)
48V ETS300 132-2
(See Note 5)
(See Note 5)
18 to 75VDC
1.5A HRC
5V/ms
94%
86%
(See Note 7)
CMOS/TTL/Open Collector
Open circuit
<1VDC
Clamp type
Hiccup
Min. load to FL
Min. load to FL (See Note 1)
Singles/dual positives
Dual negatives
Full load to
minimum load
All outputs
3.3V and 5.0V
All others
All models
±1.0%
±0.1%
±0.2%
±0.15%
10%
30mV pk-pk
60mV pk-pk
12mV rms
±0.01%/°C
(See table and Notes 3, 4)
Continuous
auto. recovery
±1.0%
±5.0%
EMC CHARACTERISTICS
ETS 300 386-1 table 5
Conducted emissions
Radiated emissions
ESD air
ESD contact
Surge (500V)
Fast transients
Radiated immunity
Conducted immunity
EN55022 (See Note 6)
EN55022, external filter,
VDE0878, 48V models
See Application Note 100
EN61000-4-2, level 3
EN61000-4-2, level 4
EN61000-4-5, level 3, 4
EN61000-4-4, level 3, 4
EN61000-4-3, level 3
EN61000-4-6, level 3
Level A
Level B
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
Weight
MTBF
(Representative model
48S05 @ 48Vin)
UL94V-0
12g (0.42 oz)
456,621 hours
MIL-HDBK-217F
Parts stress method
Ground Benign @ 25°C
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Operating ambient
temperature
Non-operating
-40°C to +70°C,
See curves
-55°C to +105°C
Classes T3.1 to T3.5
Low: IEC 68-2-1
-40°C
High: IEC 68-2-2
+70°C
Change: IEC 68-2-14
-40°C to +70°C
IEC 68-2-56
10% to 100% RH
IEC 68-2-30
Condensation
IEC68-2-6
MIL-STD-202F
IEC-68-2-29
MIL-STD-202F
2 to 9Hz, 3mm disp.
Method 204 cond. A
Method 213B cond. A
ETS 300 019-2-3
Air temperature
Relative humidity
Vibration, Class 3M5
9 to 200Hz 1g
Shock, Class 3M5
File Name: CXA10.PDF Rev: 11 Jan 2002
CXA10 Series
DC/DC CONVERTERS
10W DC/DC Converters
INPUT
VOLTAGE
18-75VDC
18-75VDC
18-75VDC
18-75VDC
18-75VDC
18-75VDC
Notes
OUTPUT
VOLTAGE
3.3V
5.0V
12V
±5V
±12V
±15V
Single and dual output
2
For the most current data and application support visit www.artesyn.com/powergroup/products.htm
OVERVOLTAGE
PROTECTION
(3,4)
3.9V
6.8V
16V
±6.8V
±16V
±19V
OUTPUT
CURRENT (MAX.)
(9)
2.4A
2.0A
0.83A
1.0A
0.41A
0.33A
TYPICAL
EFFICIENCY
78%
81%
83%
81%
83%
81%
MODEL
NUMBER
(7)
CXA10-48S3V3
CXA10-48S05
CXA10-48S12
CXA10-48D05
CXA10-48D12
CXA10-48D15
Negative output voltage deviation when positive load is changed.
Guaranteed minimum output voltage range.
TVS spec: See Application Note 100 on our web site.
On dual output models, OVP protection is on negative outputs only.
With respect to minimum input voltage.
With one external ITW Paktron 4.7µF film capacitor across the input.
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.
1
2
3
4
5
6
7
0.100
(2.54)
0.400
(10.16)
0.400
(10.16)
0.020
(0.50)
Ø0.040
±0.002
Dia. (Ø1.02
±0.05)
3
±0.020
(0.5)
2.000
(50.80)
0.800
(20.32)
4
5
1
2
6
0.600
(15.24)
OPEN-
FRAME
HEIGHT
0.400
(10.16)
0.200
(5.08)
0.300
(7.62)
0.142 (3.60)
±
0.012 (0.3)
0.394
(10.00)
Max.
±
0.012 (0.3)
0.536 (13.60)
CAUTION: Hazardous internal voltages and high temperatures.
Ensure that unit is not user accessible.
1.000 (25.40)
±
0.020 (0.5)
ALL DIMENSIONS IN INCHES (mm)
Tolerance on all dimensions of
±
0.005 (0.127)
Unless otherwise specified
PIN CONNECTIONS
PIN NUMBER
1
2
6*
3
4
5
SINGLE OUTPUT
+ Input
– Input
Remote ON/OFF
+ Output
No Pin
- Output
DUAL OUTPUT
+ Input
- Input
Remote ON/OFF
+ Output
0%
Output Power (%)
100%
DERATING CURVE
(Output Power %)
75%
50%
25%
27.5%
Common
- Output
-40°C -30°C -20°C -10°C 0°C
10°C 20°C 30°C 40°C 50°C 60°C 70°C 80°C
90°C 100°C
AMBIENT TEMPERATURE (°C)
Figure 1: Natural Convection (0.1m/s) Typical derating - See Application Note 100
* Optional remote ON/OFF pin. Please add the suffix ‘-S’ to the model
number, e.g. CXA10-48S05-S (See Note 7).
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.
Please consult our website for the following items:
Application Note
Longform Data Sheet
www.artesyn.com
File Name: CXA10.PDF Rev: 11 Jan 2002
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