NCX10S Datasheet, PDF (1/5 Pages) C&D Technologies – Isolated 10W Single Output DC/DC Converters

NCX10S SERIES
Isolated 10W Single Output DC/DC Converters
SELECTION GUIDE¹
FEATURES
■ High Efficiency to 82%
■ 500V Input to Output Isolation
■ Industry Standard Pinout
■ UL 60950 Recognition Pending
■ Non Latching Current Limit
■ Constant 400kHz Frequency
■ Versatile Control Options
■ Continuous Rating to 10W @85°C
■ Operation to Zero Load
■ Protected Against Load Faults
■ Internal Over Temperature Protection
■ Uses No Electrolytic Capacitors
DESCRIPTION
The NCX10S series of DC/DC Converters
combines ease of application with versatility
and is available in two pin patterns based on
popular industry standards. High efficiency
enables full rating to be achieved in a small
package without heatsinking, and a high
surge capability will provide for start-up and
transient loads, whilst being thermally
protected against sustained overload. The
NCX10S series is currently undergoing
testing by Underwriters Laboratory (UL) to UL
60950 for functional insulation.
Order Code
V
V
A
mW
mW
%
pF
NCX10S24033
24
3.4
3.1
270
26
78
23
NCX10S24050
24
5.1
2.0
280
25
82
26
NCX10S48033
48
3.4
3.1
500
44
79
29
NCX10S48050
48
5.1
2.0
510
45
82
32
NCX10S24033Y 24
3.4
3.1
270
26
78
23
NCX10S24050Y 24
5.1
2.0
280
25
82
26
NCX10S48033Y 48
3.4
3.1
500
44
79
29
NCX10S48050Y 48
5.1
2.0
510
45
82
32
INPUT CHARACTERISTICS¹
Parameter
Voltage Range
Conditions
Continuous operation, 24V input types
Continuous operation, 48V input types
MIN
18
36
NOM
24
48
MAX
36
75
Units
V
OUTPUT CHARACTERISTICS¹
Parameter
Conditions
MIN TYP MAX Units
Voltage Set Point Error 50% load
1.0
%
Overall
Voltage Error
Substrate temperature –40 to 110°C
Load 0% - 100%
Input specified range
2.5
%
Temperature Coefficient
of Output Voltage
(slope)
250 ppm°C
Deviation of
Output Voltage
Temperature MIN - MAX
1.0
%
Current Limit
Continuous short circuit causes no damage
Overload
Output Current
95% of nominal
output voltage
NCX10S24033
NCX10S24050
NCX10S48033
NCX10S48050
153
% of
170
rated
148
Output
164
Current
Line Regulation
Operating voltage range, 50% load
0.1
%
Load Regulation
0% - 100% rated load²
0.5
%
Ripple
rms
1.0
%
CONTROL CHARACTERISTICS
Parameter
Conditions
MIN TYP MAX Units
Voltage Trimming
Range
At rated load,
Trim control at either output
±10
%
Remote Switch Input Not operating
-0.3
0
1.5
(voltage relative
to input negative)
Start Delay
Operating, open circuit voltage
V_IN MIN to MAX
V
2.6 5.0 6.1
Time from application of valid input
voltage to output being in specification
10 ms
Switching Frequency
360 400 440 kHz
ABSOLUTE MAXIMUM RATINGS
Input voltage, 24V input types
Input voltage, 48V input types
Output Voltage
Output trim control
Shutdown control
–0.3V to 40V
–0.3V to 80V
–0.3V to regulated voltage
–1V to +30V relative to output return
–0.3V to 6V relative to input return
www.cdpoweronline.com 1 Specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
2 A minimum load of 10% of rating is recommended for typical applications, see application notes.