DC/DC Converters. NCS6S4805C Datasheet

NCS6S4805C Converters. Datasheet pdf. Equivalent


Murata NCS6S4805C
www.murata-ps.com
NCS6 Series
Isolated 6W 4:1 Input Single & Dual Output DC-DC Converters
FEATURES
„UL 60950 recognised
„RoHS compliant
„4:1 Wide range voltage input
„Operating temperature range –40°C to
85°C
„Typical load regulation from 0.06%
„1.5kVDC Isolation
„Typical efficiency to 87%
„12V & 48V Nominal input
„Power density 0.94W/cm3
„UL 94V-0 Package materials
„No electrolytic capacitors
„Low noise
„Under voltage lock out
„Current fold back
PRODUCT OVERVIEW
The NCS6 series of DC-DC converters offers
single & dual output voltages from input voltage
ranges of 9-36V and 18-75V. The NCS6 is housed
in an industry standard package with a standard
pinout. The NCS6 is packaged in a metal case for
improved EMI shielding and is also encapsulated
for superior thermal performance.
Applications include telecommunications, battery
powered systems, process control and distributed
power systems.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
SELECTION GUIDE
Input
Voltage
Order Code
Nom.
NCS6D1205C
NCS6D1212C
NCS6D1215C
NCS6S1203C
NCS6S1205C
NCS6S1212C
NCS6S1215C
NCS6D4805C
NCS6D4812C
NCS6D4815C
NCS6S4803C
NCS6S4805C
NCS6S4812C
NCS6S4815C
V
12
12
12
12
12
12
12
48
48
48
48
48
48
48
Output
Voltage
V
±5
±12
±15
3.3
5
12
15
±5
±12
±15
3.3
5
12
15
Output
Current
100%
Load
A
±0.6
±0.25
±0.2
1.52
1.2
0.5
0.4
±0.6
±0.25
±0.2
1.52
1.2
0.5
0.4
Input Current
0% 100%
Load Load
mA mA
7 610
10 580
12 580
10 550
7 610
10 580
12 580
6 160
7 150
7 150
10 150
6 160
7 150
7 150
Ripple &
Noise
(Typ.)
mV p-p
15
10
20
30
30
30
30
50
30
30
40
30
30
30
Efficiency
Min. Typ.
%%
80 82
82 86
84 87
75 78
79 82
84 86
85 87
79 80
82 84
82 84
73 76
78 80
82 84
83 84
MTTF1
Hrs
384,470
406,121
344,957
662,073
521,975
435,567
437,582
373,195
391,563
330,752
483,460
441,850
408,555
416,319
INPUT CHARACTERISTICS
Parameter
Conditions
Voltage range
12V input types
48V input types
Turn on threshold 12V input types
Under voltage lock out
Turn off threshold 12V input types
Turn on threshold 48V input types
Turn off threshold 48V input types
Reflected ripple current
12V input types
48V input types
Single output types
Dual output types
Single output types
Dual output types
Min. Typ. Max. Units
9 12 36
18 48 75
V
8.5
7.5
V
16.7
15.8
12
4
9
mA p-p
6
OUTPUT CHARACTERISTICS
Parameter
Conditions
Rated power
5V, 12V & 15V output types
3.3V output types
Positive outputs
Voltage set point accuracy
Negative outputs
Line regulation
Positive outputs
Low line to high line
Negative outputs
3V outputs
Load Regulation
10% total load to
100% total load
5V positive outputs
12V & 15V positive outputs
Cross Regulation
% voltage change on
negative output when
positive load varies
from 12.5% to 37.5%
with negative load fixed
at 50%
3.3V & 5V output
types
All negative outputs
5V
12V & 15V
Single output types
Dual output types
Start-up Time
12V output types
Single output types
Dual output types
15V output types
Single output types
Dual output types
Min.
Typ.
0.002
0.09
0.5
0.3
0.06
0.2
2.5
25
4.6
11
5.5
14
1 Calculated using MIL-HDBK-217F FN2, parts stress method with nominal input voltage at full load.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
Max.
6
5
±2
±3
0.2
0.7
0.6
0.5
0.2
1.0
5
2.5
Units
W
%
%
%
%
mS
KDC_NCS6C.D05 Page 1 of 11


NCS6S4805C Datasheet
Recommendation NCS6S4805C Datasheet
Part NCS6S4805C
Description DC/DC Converters
Feature NCS6S4805C; www.murata-ps.com NCS6 Series Isolated 6W 4:1 Input Single & Dual Output DC-DC Converters FEATURES.
Manufacture Murata
Datasheet
Download NCS6S4805C Datasheet




Murata NCS6S4805C
NCS6 Series
Isolated 6W 4:1 Input Single & Dual Output DC-DC Converters
ISOLATION CHARACTERISTICS
Parameter
Isolation test voltage
Resistance
Capacitance
Conditions
Flash tested for 1 seconds
Viso = 1kVDC
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection (for SELV input voltages)
Internal power dissipation
Lead temperature 1.0mm from case for 10 seconds
(to JEDEC JESD22-B106 ISS C)
Minimum output load for specification (see application notes)
Input voltage, NCS6 12V input types
Input voltage, NCS6 48V input types
GENERAL CHARACTERISTICS1
Parameter
Switching frequency
Conditions
TEMPERATURE CHARACTERISTICS
Parameter
Operation
Storage
Conditions
Continuous
2.1W
260°C
10% of rated load
40V
80V
Case temperature rise above ambient
100% Load, Nom VIN,
Still Air
48VIN Dual outputs
All other output types
Thermal shutdown
Case Temperature
5V
12V
15V
3.3V
5V
12V
15V
Min. Typ. Max. Units
1500 VDC
1 GΩ
225 pF
Min. Typ. Max. Units
180 kHz
Min. Typ. Max. Units
-40 85
-50 125
36
32
31
°C
32
32
28
26
105
www.murata-ps.com/support
KDC_NCS6C.D05 Page 2 of 11



Murata NCS6S4805C
NCS6 Series
Isolated 6W 4:1 Input Single & Dual Output DC-DC Converters
TECHNICAL NOTES
ISOLATION VOLTAGE
‘Hi Pot Test’, ‘Flash Tested’, ‘Withstand Voltage’, ‘Proof Voltage’, ‘Dielectric Withstand Voltage’ & ‘Isolation Test Voltage’ are all terms that relate to the same thing, a test voltage,
applied for a specified time, across a component designed to provide electrical isolation, to verify the integrity of that isolation.
Murata Power Solutions NCS6 series of DC-DC converters are all 100% production tested at their stated isolation voltage. This is 1.5kVDC for 1 second.
A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?”
The NCS6 has been recognised by Underwriters Laboratory for functional isolation. Both input and output should normally be maintained within SELV limits i.e. less than 42.4V
peak, or 60VDC. The isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system.
The part could be expected to function correctly with several hundred volts offset applied continuously across the isolation barrier; but then the circuitry on both sides of the barrier
must be regarded as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user-accessible circuitry according
to safety standard requirements.
REPEATED HIGH-VOLTAGE ISOLATION TESTING
It is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials,
construction and environment. The NCS6 series has an ER ferrite core, with no additional insulation between primary and secondary windings of enamelled wire. While parts can
be expected to withstand several times the stated test voltage, the isolation capability does depend on the wire insulation. Any material, including this enamel (typically polyure-
thane) is susceptible to eventual chemical degradation when subject to very high applied voltages thus implying that the number of tests should be strictly limited. We therefore
strongly advise against repeated high voltage isolation testing, but if it is absolutely required, that the voltage be reduced by 20% from specified test voltage.
This consideration equally applies to agency recognised parts rated for better than functional isolation where the wire enamel insulation is always supplemented by a further
insulation system of physical spacing or barriers.
SAFETY APPROVAL
The NCS6 series has been recognised by Underwriters Laboratory (UL) to UL 60950 for functional insulation in a maximum ambient temperature of 85ºC and/or case temperature
limit of 120ºC (case temperature measured on the face opposite the pins). File number E151252 applies.
Note: This series gained UL 60950 recognition for products manufactured on or after datecode G1114, any NCS6 parts manufactured before this date code should not be considered
UL 60950 recognised. Any NCS6 that is UL recognised will be printed with the UL logo.
RoHS COMPLIANCE INFORMATION
This series is compatible with RoHS soldering systems with a peak wave solder temperature of 260ºC for 10 seconds. The pin termination finish
on this product series is a Gold flash (0.05-0.10 micron) over Nickel Preplate. The series is backward compatible with Sn/Pb soldering systems.
For further information, please visit www.murata-ps.com/rohs
www.murata-ps.com/support
KDC_NCS6C.D05 Page 3 of 11







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