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
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
EMC CHARACTERISTICS
ETS 300 386-1 table 5
Conducted emissions
Voltage accuracy
±1.0%
EN55022 (See Note 6)
Level A
Level B
Line regulation
(LL to HL)
Singles/dual positives
Dual negatives
±0.1%
±0.2%
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
Radiated emissions
ESD air
ESD contact
Surge (500V)
Fast transients
Radiated immunity
Conducted immunity
Load regulation
(not incl. cross reg.)
Full load to
minimum load
±0.15%
Min. load
All outputs
10%
Ripple and noise
20MHz bandwidth
3.3V and 5.0V
All others
All models
30mV pk-pk
60mV pk-pk
12mV rms
GENERAL SPECIFICATIONS
Efficiency
See table
1500VDC
400kHz
Temperature coefficient
Overvoltage protection
±0.01% /°C
Isolation voltage
Input/output test voltage
Clamp type (See table and Notes 3, 4)
Switching frequency
Fixed
Short circuit protection
Short <20mΩ
Hiccup
Continuous
auto. recovery
Approvals and standards
(See Notes 7,8,9,10,11)
EN60950, UL1950
CSA C22.2 No. 950
Transient response
Min. load to FL
±1.0%
Material flammability
Weight
UL94V-0
12g (0.42 oz)
456,621 hours
Load cross regulation
Min. load to FL (See Note 1)
±5.0%
MTBF
(Representative model
48S05 @ 48Vin)
MIL-HDBK-217F
Parts stress method
INPUT SPECIFICATIONS
Input voltage range
Input fuse
Ground Benign @ 25°C
48Vin nominal
(See Note 10)
18 to 75VDC
1.5A HRC
5V/ms
ENVIRONMENTAL SPECIFICATIONS
Thermal performance
Operating ambient
temperature
Non-operating
-40°C to +70°C,
See curves
-55°C to +105°C
Max. input rise
and fall time
48V ETS300 132-2
ETS 300 019-2-3
Air temperature
Classes T3.1 to T3.5
UVLO turn ON voltage
UVLO turn OFF voltage (See Note 5)
(See Note 5)
94%
86%
Low: IEC 68-2-1
High: IEC 68-2-2
Change: IEC 68-2-14
-40°C
+70°C
-40°C to +70°C
Remote ON/OFF
Logic compatibility
ON
(See Note 7)
CMOS/TTL/Open Collector
Open circuit
Relative humidity
IEC 68-2-56
IEC 68-2-30
10% to 100% RH
Condensation
OFF
<1VDC
Vibration, Class 3M5
9 to 200Hz 1g
IEC68-2-6
MIL-STD-202F
2 to 9Hz, 3mm disp.
Method 204 cond. A
Shock, Class 3M5
IEC-68-2-29
MIL-STD-202F
Method 213B cond. A
File Name: CXA10.PDF Rev: 11 Jan 2002