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NCX10S48050Y

Description
DC-DC Regulated Power Supply Module, 1 Output, 10W, Hybrid,
CategoryPower/power management    The power supply circuit   
File Size834KB,5 Pages
ManufacturerC&D
Environmental Compliance  
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NCX10S48050Y Overview

DC-DC Regulated Power Supply Module, 1 Output, 10W, Hybrid,

NCX10S48050Y Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerC&D
package instruction,
Reach Compliance Codeunknown
ECCN codeEAR99
Analog Integrated Circuits - Other TypesDC-DC REGULATED POWER SUPPLY MODULE
Maximum input voltage75 V
Minimum input voltage36 V
Nominal input voltage48 V
JESD-30 codeR-XDMA-G18
JESD-609 codee1
Maximum load regulation0.5%
Number of functions1
Output times1
Number of terminals18
Maximum output voltage5.61 V
Minimum output voltage4.59 V
Nominal output voltage5.1 V
Package body materialUNSPECIFIED
Package shapeRECTANGULAR
Package formMICROELECTRONIC ASSEMBLY
Peak Reflow Temperature (Celsius)NOT SPECIFIED
Certification statusNot Qualified
surface mountYES
technologyHYBRID
Terminal surfaceTIN SILVER COPPER
Terminal formGULL WING
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
Maximum total power output10 W
Fine-tuning/adjustable outputYES

NCX10S48050Y Preview

NCX10S SERIES
Isolated 10W Single Output DC/DC Converters
SELECTION GUIDE
1
Power Consumption
at 0% Load
Power Consumption
at Shutdown
Efficiency (MIN)
Output Voltage
Output Current
Nominal
Input Voltage
Order Code
NCX10S24033
NCX10S24050
NCX10S48033
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.
NCX10S48050
NCX10S24033Y
NCX10S24050Y
NCX10S48033Y
NCX10S48050Y
V
24
24
48
48
24
24
48
48
V
3.4
5.1
3.4
5.1
3.4
5.1
3.4
5.1
A
3.1
2.0
3.1
2.0
3.1
2.0
3.1
2.0
mW
270
280
500
510
270
280
500
510
mW
26
25
44
45
26
25
44
45
%
78
82
79
82
78
82
79
82
INPUT CHARACTERISTICS
1
Parameter
Conditions
MIN
NOM
MAX
Units
Voltage Range
Continuous operation, 24V input types
Continuous operation, 48V input types
18
36
24
48
36
75
OUTPUT CHARACTERISTICS
1
Parameter
Conditions
MIN
TYP
MAX
Units
Voltage Set Point Error 50% load
Substrate temperature –40 to 110°C
Overall
Load 0% - 100%
Voltage Error
Input specified range
Temperature Coefficient
of Output Voltage
(slope)
Deviation of
Temperature MIN - MAX
Output Voltage
Current Limit
Continuous short circuit causes no damage
NCX10S24033
Overload
95% of nominal NCX10S24050
Output Current
output voltage
NCX10S48033
NCX10S48050
Line Regulation
Operating voltage range, 50% load
Load Regulation
0% - 100% rated load
2
Ripple
rms
1.0
2.5
250
1.0
153
170
148
164
0.1
0.5
1.0
CONTROL CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
Voltage Trimming
Range
Remote Switch Input
(voltage relative
to input negative)
Start Delay
Switching Frequency
At rated load,
Trim control at either output
Not operating
Operating, open circuit voltage
V
IN
MIN to MAX
Time from application of valid input
voltage to output being in specification
±10
-0.3
2.6
0
5.0
1.5
6.1
10
360
400
440
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 T
A
=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.
Isolation
Capacitance
pF
23
26
29
32
23
26
29
32
V
%
%
ppm°C
%
% of
rated
Output
Current
%
%
%
%
V
ms
kHz
NCX10S SERIES
Isolated 10W Single Output DC/DC Converters
ISOLATION CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
Isolation Voltage
Resistance
Flash tested for 1 second
V
ISO
=500VDC
1000
1
VDC
GΩ
ENVIRONMENTAL CHARACTERISTICS
Parameter
Conditions
MIN
TYP
MAX
Units
Substrate Temp.
Full load
Storage
Absolute MAX internal temperature
Thermal Protection Operates at substrate temperature
–40
–40
150
125
125
°C
°C
°C
THERMAL PERFORMANCE
NCX10S24033
11
10
Ambient Power (W)
Ambient Power (W)
9
8
7
6
5
4
-40
Still Air
100lfm
200lfm
300lfm
400lfm
NCX10S24050
11
10
9
8
7
6
5
4
-40
10
60
Ambient Temperature (°C)
110
Still Air
100lfm
200lfm
300lfm
NCX10S48033
11
10
Ambient Power (W)
9
8
7
6
5
4
-40
10
60
Ambient Temperature (°C)
110
Still Air
100lfm
200lfm
10
60
Ambient Temperature (°C)
110
NCX10S48050
11
10
Ambient Power (W)
9
8
7
6
5
4
-40
10
60
Ambient Temperature (°C)
110
Still Air
100lfm
UL 60950 RECOGNITION
(Maximum permissable load in still air)
Part Number
-40°C
25°C
70°C
75°C
80°C
85°C
90°C
Units
NCX10S24033
NCX10S24050
NCX10S48033
NCX10S48050
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
9.0
10.0
9.5
10.0
7.9
8.9
8.4
10.0
6.5
7.2
7.1
9.6
5.0
5.2
5.5
8.0
W
APPLICATION NOTES
In a typical application, the NCX10S series
of DC/DC converters require nothing more
than a dc supply of correct polarity and
voltage to generate its specified output. These
notes are intended to offer help in the use of
other facilities offered by these converters,
and to provide assistance in achieving their
full potential.
VOLTAGE TRIMMING
The trimming (adjust) input on the secondary
side allows output voltage adjustment within
the capability of the power circuit.
When open circuit, the trimming pin ADJ
operates at near half the output voltage. A
basic trimming arrangement consists of a
potentiometer of 10kΩ to 100kΩ connected
across the output, with its wiper connected to
the ADJ pin (see figure 1). Dependent on
model, the output will be reduced by about
+V
IN
15% when the wiper is at the positive output,
or increased by about 24% when at the
negative rail. Regulation will be maintained to
at least 10% adjustment either way.
If finer adjustment is required, a resistor may
be included between the wiper and the pin.
For example, 62kΩ will restrict a 3.3V model
to ±5% adjustment range. The corresponding
values for the 5V model is 56kΩ.
+V
OUT
DC
ADJ
100KΩ
–V
IN
Figure 1: Voltage Trimming
0V
DC
NCX10S SERIES
Isolated 10W Single Output DC/DC Converters
APPLICATION NOTES
SET VOLTAGE
The output voltage is set to 100mV above
nominal, to offset resistive losses and thus
assist with worst case error calculations. This
allowance can be altered with a single fixed
resistor, connected from the trimming pin to
one of the output pins.
OTHER TRIMMING FUNCTIONS
The voltage applied to the trim pin need not
be from a potentiometer. The trim facility may
be driven electronically to provide
“margining”, remote sense, active load
sharing, current control or remote
programming (There is a minimum output
voltage below which control is not possible).
SHUTDOWN & UNDER VOLTAGE TRIM
When the shutdown pin (Pin 11) is shorted to
the negative input, the converter will stop. Its
current consumption will then be less than
1mA at nominal supply voltage. The
shutdown/UV adjust pin serves the dual
function of shutting the converter down into a
low power state, and allowing adjustment of
the under voltage start threshold.
To shut the unit down this pin should be taken
to below 1.5V, using either an isolating
diode (figure 2) with the anode connected to
the shutdown pin or using an open collector
pulldown (figure 3).
The UV threshold can be controlled either via
a resistor connected between the pin and 0V,
or by connecting a series 1MΩ resistor to a
voltage of between 0V and 2.5V.
The variation of startup voltage with either
parallel resistor or applied voltage is shown
Applied Voltage (V)
in figures 4 & 5. Note that voltage should not
be applied directly to the pin without a series
resistor or diode.
If the shutdown pin is to be connected to a
long wire, it is recommended that a capacitor
decouples the pin to the supply common in
order to avoid the risk of injecting noise into
the converter circuit. A series resistor may
also be helpful. Values of 10nF and 1kΩ may
be used.
Many converters may be switched together
simply by linking the primary control pins via
a schottky signal diode anode to the control
pin. The primary common pins must also be
linked, see figure 6.
FILTERING
The module includes a basic level of filtering,
sufficient for many applications. Where lower
noise levels are desired, filters can easily be
added to achieve any required noise
performance.
A DC/DC converter generates noise in two
principle forms: that which is radiated from
its body and that conducted on its external
connections. There are three separate modes
of conducted noise: input differential, output
differential and input-output.
This last appears as common mode at the
input and the output, and cannot therefore be
removed by filtering at the input or output
alone. The first level of filtering is to connect
a capacitor between input and output returns,
to reduce this form of noise. It typically
contains high harmonics of the switching
frequency, which tend to appear as spikes on
surrounding circuits. The voltage rating of this
capacitor must match the required isolation
voltage. (Due to the great variety in isolation
voltage and required noise performance, this
capacitor has not been included within the
converter.)
Input ripple is a voltage developed across the
internal input decoupling capacitor. It is
therefore measured with a defined supply
source impedance. Although simple series
inductance will provide filtering, on its own it
can degrade the stability. A shunt capacitor is
therefore recommended across the converter
input terminals, so that it is fed from a low
impedance.
If no filtering is required, the inductance of
long supply wiring could also cause a
problem, requiring an input decoupling
capacitor for stability. An electrolytic will
perform well in these situations.
See figure 7 for a recommended
configuration to reduce all three conducted
modes.
The component values and ratings will
depend on the converter rating and voltage,
and the required noise performance. The
input-output filtering is performed by the
common-mode choke on the primary. This
could be placed on the output, but would
then degrade the regulation and produce less
2.5
Shutdown Resistor (MΩ)
17.5
18 18.5 19
Startup Voltage (V)
19.5
20
15
13
11
9
7
5
3
1
17
17.5
18 18.5 19
Startup Voltage (V)
19.5
20
e.g. BAT42
DC
SD
2.0
1.5
Less than 0.8V
for Shutdown
DC
–V
IN
1.0
17
Figure 2: Shutdown with Isolating Diode
Figure 4: NCX10S24XXX Startup Voltage Vs Startup Pin Resistor/Voltage
2.5
15
Shutdown Resistor (MΩ)
33.5 34 34.5 35 35.5
Startup Voltage (V)
36
13
11
9
7
5
3
1
32
33
34
35
Startup Voltage (V)
36
e.g. BC546
10K 0.25W
Greater than 1.5V
for Shutdown
Applied Voltage (V)
SD
DC
DC
–V
IN
2.0
1.5
1.0
32.5 33
Figure 3: Shutdown with Open Collector
Pulldown
Figure 5: NCX10S48XXX Startup Voltage Vs Startup Pin Resistor/Voltage
NCX10S SERIES
Isolated 10W Single Output DC/DC Converters
APPLICATION NOTES
benefit for a given size, cost, and power loss.
Radiated noise is present in magnetic and
electrostatic forms. Thanks to the small size of
these units, neither form of noise will be
radiated “efficiently”, so will not normally
cause a problem. Any question of this kind
usually better repays attention to conducted
signals.
In applications where large transient load
swings are expected, for example 10-60% or
25-75%, the fitting of an external electrolytic
output capacitor is recommended to reduce
voltage over/under shoot. 200µF capacitance
will typically reduce a peak excursion to
350mV settling to within 1% V
NOM
in 1.2ms.
Additional externally fitted capacitance will
further reduce over/under shoot.
PROTECTION
The “absolute maximum” ratings in the
specification define conditions which may
degrade life but will not result in immediate
damage. This section of the application notes
deals with those unavoidable or accidental
occasions when the ratings are exceeded.
The unit will protect itself against a wide
range of abnormal conditions. In others,
where failure is inevitable, the consequent
hazards have been minimised.
If the supply polarity is reversed, the unit is
unable to protect itself. The simple
preventative measure of a series diode would
add unacceptable power loss for the basic
product, but it may be appropriate in some
applications to fit this diode externally.
With no polarity protection, tracks and
components will safely fail to high
impedance, disconnecting the power. A large
fault current will occur in this process.
Optional Open
Collector Transistor
DC
SD
Less than
0.8V for
Shutdown
SD
DC
DC
DC
–V
IN
–V
IN
FUSING
Part Number
Recommended Fuses
1
Figure 6: Shutdown with Isolating Diode
NCX10S24XX
NCX10S48XX
1.6A
1.0A
100µH
10µH
DC
2.2µF
1mH
2.2µF
10µH
DC
100µH
10µF, 250Vac Y Rated
10µF, 250Vac Y Rated
Figure 7: Recommended Configuration to Reduce Noise
1 Anti surge T-type fuses are recommended
NCX10S SERIES
Isolated 10W Single Output DC/DC Converters
MECHANICAL DIMENSIONS
18 Pin SMD Package Style
1.75 (44.56)
1.58 (40.03)
18
17
16
15
14
13
12
11
10
1.12 ±0.016
(28.4 ±0.4)
0.82
(20.75)
Detail A
REFERENCE PLANE
0.197
(0.50)
1
2
3
4
5
6
7
8
9
±5.00°
0.008(0.2) M
P
S
0.20 (5.0)
0.31
(7.75)
MAX
0.315±0.004
(8.00±0.10)
0.10±0.004
(2.59±0.1)
0.008(0.2) M
P
S
0.049±0.008
(1.24±0.2)
x18 Pins
0.09±0.001 (2.27±0.25)
S
DETAIL A
0.01 (2.51) MAX
18 Pins
S
0.004(0.1)
0.010±0.002
(0.25±0.05)
Recommended Footprint Details
Pin Connections
PIN NCX10SXXXXX NCX10SXXXXXY
1
+V
OUT
+V
OUT
2
–V
OUT
–V
OUT
3-7
NC
NC
8
V
ADJ
V
ADJ
9-10
NC
NC
11
SD
SD
12-16
NC
NC
17
–V
IN
+V
IN
18
+V
IN
–V
IN
Package Weight: 8.3g
0.94
(24.0)
1.17
(29.6)
0.20 (5.00)
1.57 (40.0)
0.14 (3.60)
All pins on a 0.1(2.54) pitch and within
±0.01(0.25) of true position.
Unless otherwise stated all dimensions in
inches(mm) ±0.01(0.25).
C&D Technologies (NCL) Limited reserve the right to alter or improve the
specification, internal design or manufacturing process at any time, without
notice. Please check with your supplier or visit our web site to ensure that
you have the current and complete specification for your product before use.
© C&D Technologies (NCL) Limited 2003
NDC NCX10S.1
No part of this publication may be copied, transmitted or stored in a
retrieval system or reproduced in any way including, but not limited to,
photography, photocopy, magnetic or other recording means, without prior
written permission from C&D Technologies (NCL) Limited.
Instructions for use are available from www.cdpoweronline.com
C&D Technologies (NCL) Ltd
Tanners Drive, Blakelands North
Milton Keynes MK14 5BU, England
Tel: +44 (0)1908 615232
Fax: +44 (0)1908 617545
email: info@cdtechno-ncl.com
www.cdpoweronline.com
C&D Technologies Inc.
3400 E Britannia Drive, Tucson,
Arizona 85706, USA
Tel: +1 (800) 547-2537
Fax: +1 (520) 741-4598
email: pedmktg@cdtechno.com

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NCX10S48050Y NCX10S24050Y NCX10S48050 NCX10S24050 NCX10S48033 NCX10S24033 NCX10S24033Y NCX10S48033Y
Description DC-DC Regulated Power Supply Module, 1 Output, 10W, Hybrid, DC-DC Regulated Power Supply Module, 1 Output, 10W, Hybrid, DC-DC Regulated Power Supply Module, 1 Output, 10W, Hybrid, DC-DC Regulated Power Supply Module, 1 Output, 10W, Hybrid, DC-DC Regulated Power Supply Module, 1 Output, 10W, Hybrid, DC-DC Regulated Power Supply Module, 1 Output, 10W, Hybrid, DC-DC Regulated Power Supply Module, 1 Output, 10W, Hybrid, DC-DC Regulated Power Supply Module, 1 Output, 10W, Hybrid,
Is it lead-free? Lead free Lead free Contains lead Contains lead Contains lead Contains lead Lead free Lead free
Is it Rohs certified? conform to conform to incompatible incompatible incompatible incompatible conform to conform to
Maker C&D C&D C&D C&D C&D C&D C&D C&D
Reach Compliance Code unknown unknown unknown unknown unknown unknown unknown unknown
ECCN code EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
Analog Integrated Circuits - Other Types DC-DC REGULATED POWER SUPPLY MODULE DC-DC REGULATED POWER SUPPLY MODULE DC-DC REGULATED POWER SUPPLY MODULE DC-DC REGULATED POWER SUPPLY MODULE DC-DC REGULATED POWER SUPPLY MODULE DC-DC REGULATED POWER SUPPLY MODULE DC-DC REGULATED POWER SUPPLY MODULE DC-DC REGULATED POWER SUPPLY MODULE
Maximum input voltage 75 V 36 V 75 V 36 V 75 V 36 V 36 V 75 V
Minimum input voltage 36 V 18 V 36 V 18 V 36 V 18 V 18 V 36 V
Nominal input voltage 48 V 24 V 48 V 24 V 48 V 24 V 24 V 48 V
JESD-30 code R-XDMA-G18 R-XDMA-G18 R-XDMA-G18 R-XDMA-G18 R-XDMA-G18 R-XDMA-G18 R-XDMA-G18 R-XDMA-G18
JESD-609 code e1 e1 e0 e0 e0 e0 e1 e1
Maximum load regulation 0.5% 0.5% 0.5% 0.5% 0.5% 0.5% 0.5% 0.5%
Number of functions 1 1 1 1 1 1 1 1
Output times 1 1 1 1 1 1 1 1
Number of terminals 18 18 18 18 18 18 18 18
Maximum output voltage 5.61 V 5.61 V 5.61 V 5.61 V 3.74 V 3.74 V 3.74 V 3.74 V
Minimum output voltage 4.59 V 4.59 V 4.59 V 4.59 V 3.06 V 3.06 V 3.06 V 3.06 V
Nominal output voltage 5.1 V 5.1 V 5.1 V 5.1 V 3.4 V 3.4 V 3.4 V 3.4 V
Package body material UNSPECIFIED UNSPECIFIED UNSPECIFIED UNSPECIFIED UNSPECIFIED UNSPECIFIED UNSPECIFIED UNSPECIFIED
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form MICROELECTRONIC ASSEMBLY MICROELECTRONIC ASSEMBLY MICROELECTRONIC ASSEMBLY MICROELECTRONIC ASSEMBLY MICROELECTRONIC ASSEMBLY MICROELECTRONIC ASSEMBLY MICROELECTRONIC ASSEMBLY MICROELECTRONIC ASSEMBLY
Peak Reflow Temperature (Celsius) NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
surface mount YES YES YES YES YES YES YES YES
technology HYBRID HYBRID HYBRID HYBRID HYBRID HYBRID HYBRID HYBRID
Terminal surface TIN SILVER COPPER TIN SILVER COPPER TIN LEAD TIN LEAD TIN LEAD TIN LEAD TIN SILVER COPPER TIN SILVER COPPER
Terminal form GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING GULL WING
Terminal location DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
Maximum total power output 10 W 10 W 10 W 10 W 10 W 10 W 10 W 10 W
Fine-tuning/adjustable output YES YES YES YES YES YES YES YES
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