Document
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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.
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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
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
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KDC_NCS6C.D05 Page 2 of 11
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 .