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NKE1215SC

P1-P3P4-P6P7-P7
NKE Series
Isolated Sub-Miniature 1W Single Output DC/DC Converters
KDC_NKE.K07 Page 1 of 7
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SELECTION GUIDE
Order Code
Nominal Input
Voltage
Output
Voltage
Output Current
Input
Current at Rated Load
Efficiency
Isolation Capacitance
MTTF
1
Package
Style
V V mA mA
%
pF
MIL. Tel.
Min. Typ.
kHrs
NKE0303DC 3.3 3.3 303 400 68 72 30 4337 46,969
DIP
NKE0305DC 3.3 5 200 400 72 75 35 4105 46,783
NKE0309DC 3.3 9 111 403 71 74 30
1904 28,918
NKE0303SC 3.3 3.3 303 400 68 72 30
4337 46,969
SIP
NKE0305SC 3.3 5 200 400 72 75 35 4105 46,783
NKE0309SC 3.3 9 111 403 71 74 30 1904 28,918
NKE0503DC 5 3.3 303 270 70 74 40 3710 36,234
DIP
NKE0505DC 5 5 200 289 66 69 28 4277 34,897
NKE0505DEC 5 5 200 250 73 77 34 2686 35,919
NKE0509DC 5 9 111 266 72 75 29 3729 76,553
NKE0512DC 5 12 83 260 73 78 30 2910 73,523
NKE0515DC 5 15 66 256 74 78 32
2211 71,725
NKE0503SC 5 3.3 303 270 70 74 40
3710 36,234
SIP
NKE0505SC 5 5 200 289 66 69 28 4277 34,897
NKE0505SEC 5 5 200 250 73 77 34 2686 35,919
NKE0509SC 5 9 111 266 72 75 29 3729 76,553
NKE0512SC 5 12 83 260 73 78 30 2910 73,523
NKE0515SC 5 15 66 256 74 78 32
2211 71,725
NKE1205DC 12 5 200 117 68 72 35
3981 58,202
DIP
NKE1209DC 12 9 111 107 72 78 50 3482 57,895
NKE1212DC 12 12 83 105 73 79 57 1982 77,806
NKE1215DC 12 15 66 103 76 81 60 2122 56,404
NKE1205SC 12 5 200 117 68 72 35 3981 58,202
SIP
NKE1209SC 12 9 111 107 72 78 50 3482 57,895
NKE1212SC 12 12 83 105 73 79 57 1982 77,806
NKE1215SC 12 15 66 103 76 81 60
2122 56,404
NKE0505SEC/NKE0505DEC offers higher efficiency than NKE0505SC/NKE0505DC but over a narrower operating temperature range.
See temperature characteristics graph.
INPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Voltage range
Continuous operation, 3.3V input types 2.97 3.3 3.63
V
Continuous operation, 5V input types 4.5 5.0 5.5
Continuous operation, 12V input types 10.8 12.0 13.2
Reflected ripple current 3.3V input types 40 60 mA p-p
ABSOLUTE MAXIMUM RATINGS
Lead temperature 1.5mm from case for 10 seconds 260°C
Input voltage V
IN, NKE03 types 5.5V
Input voltage V
IN, NKE05 types 7V
Input voltage V
IN, NKE12 types 15V
1. Calculated using MIL-HDBK-217 FN2 and Telcordia SR-332 calculation model with nominal input voltage at full load.
All specifications typical at T
A=25°C, nominal input voltage and rated output current unless otherwise specified.
PRODUCT OVERVIEW
The NKE sub-miniature series of DC/DC Converters
is particularly suited to isolating and/or converting
DC power rails. A smaller package size, improved
efficiency, lower output ripple and 3kVDC isolation
capability through state of the art packaging and
improved technology. The galvanic isolation allows
the device to be configured to provide an isolated
negative rail in systems where only positive rails
exist. The wide temperature range guarantees
startup from –40°C and full 1 watt output at 85°C.
FEATURES
RoHS Compliant
Sub-Miniature SIP & DIP Styles
3kVDC Isolation ‘Hi Pot Test’
UL Recognised
Wide Temperature performance at full
1 Watt load, –40°C to 85°C
UL 94V-0 Package Material
Footprint at 0.69cm
2
Industry Standard Pinout
3.3V, 5V & 12V Input
3.3V, 5V, 9V, 12V and 15V Output
Internal SMD Construction
Fully Encapsulated with Toroidal
Magnetics
MTTF up to 2.4 Million hours
Custom Solutions Available
No Electrolytic or Tantalum Capacitors
NKE Series
Isolated Sub-Miniature 1W Single Output DC/DC Converters
KDC_NKE.K07 Page 2 of 7
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OUTPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Rated Power TA=-40°C to 120°C, see derating graphs 1.0 W
Voltage Set Point Accuracy See tolerance envelope
Line regulation High V
IN to low VIN 1.0 1.2 %/%
Load Regulation
1
10% load to rated load, 3.3V output types & 0309 10 15
%
10% load to rated load, 5V output types 12 15
10% load to rated load, 9V output types 7.5 10
10% load to rated load, 12V output types 6.5 9.5
10% load to rated load, 15V output types 6.0 8.5
Ripple and Noise
BW=DC to 20MHz, 3.3V output types & 0305, 0505SEC, 0505DEC 40 80
mV p-p
BW=DC to 20MHz, other 5V output types 77 100
BW=DC to 20MHz, 9V output types 43 90
BW=DC to 20MHz, 12V output types 35 65
BW=DC to 20MHz, 15V output types 32 55
ISOLATION CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Isolation test voltage Flash tested for 1 second 3000 VDC
Resistance Viso= 1000VDC 10 GΩ
GENERAL CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Switching frequency All output types 115 kHz
TEMPERATURE CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Specification All output types -40 85
°C
Storage -50 130
Case temperature rise above
ambient
0505D/S, 1205D/S 41
All other output types
32
Cooling Free air convection
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 NKE series of dc/dc converters are all 100% production tested at their stated isolation voltage. This is 3000V DC for 1 second.
A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?”
The NKE series has been recognized by Underwriters Laboratory for functional insulation. 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 sys-
tem. 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 materi-
als, construction and environment. While manufactured parts can withstand several times the stated test voltage, the isolation capability does depend on the wire insulation. Any
material, including this enamel (typically polyurethane) 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.
1. 12V input types have typically 3% less load regulation.
SAFETY APPROVAL
The NKE 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 130ºC. Case temperature measured on the face opposite the pins. File number E151252 applies.
NKE Series
Isolated Sub-Miniature 1W Single Output DC/DC Converters
KDC_NKE.K07 Page 3 of 7
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TOLERANCE ENVELOPES
3.3V output types.
All other types.
100
75
50
25
10
-7%
+9%
Output Load Current (%)
Output Voltage
+1%
-15%
-7%
+1%
Typical Load Line
V
NOM
+10%
Output Load Current (%)
Output Voltage
+5%
-7.5%
-2.5%
+2.5%
Typical Load Line
V
NOM
100
75
50
25
10
TEMPERATURE DERATING GRAPHS
150100
50
0
-40
0
0.5
1.0
1.5
Safe Operating Area
85°C
Ambient Temperature (°C)
Output Power (W)
150100
50
0
-40
0
0.5
1.0
1.5
Safe Operating Area
85°C
Ambient Temperature (°C)
Output Power (W)
120°C
NKE 0303DC/SC, 0305DC/
SC, 0309DC/SC, 0503DC/SC,
0505DEC/SEC types only.
All other types.
UL recognition to a
maximum ambient
temperature of 85ºC and/
or case temperature limit of
130ºC.
The voltage tolerance envelope shows typical load regulation characteristics for this product series. The tolerance envelope is the maximum output voltage variation due to
changes in output loading.
P1-P3P4-P6P7-P7

NKE1215SC

Mfr. #:
Buy NKE1215SC
Manufacturer:
Murata Power Solutions
Description:
Isolated DC/DC Converters 1W SNGL OUT 12-15V Single Output
Lifecycle:
New from this manufacturer.
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