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기능 Isolated Sub-Miniature 1W Single Output DC/DC Converters
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NKE1215SC 데이터시트, 핀배열, 회로
www.murata-ps.com
NKE Series
Isolated Sub-Miniature 1W Single Output DC/DC Converters
FEATURES
„RoHS Compliant
„Sub-Miniature SIP & DIP Styles
„3kVDC Isolation
„UL Recognised
„Wide Temperature performance at full
1 Watt load, –40°C to 85°C
„Increased Power Density to 2.09W/cm3
„UL 94V-0 Package Material
„Footprint at 0.69cm2
„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
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.
SELECTION GUIDE
Order Code
NKE0303DC
NKE0305DC
NKE0309DC
NKE0303SC
NKE0305SC
NKE0309SC
NKE0503DC
NKE0505DC
NKE0505DEC
NKE0509DC
NKE0512DC
NKE0515DC
NKE0503SC
NKE0505SC
NKE0505SEC
NKE0509SC
NKE0512SC
NKE0515SC
NKE1205DC
NKE1209DC
NKE1212DC
NKE1215DC
NKE1205SC
NKE1209SC
NKE1212SC
NKE1215SC
Nominal
Input
Voltage
V
3.3
3.3
3.3
3.3
3.3
3.3
5
5
5
5
5
5
5
5
5
5
5
5
12
12
12
12
12
12
12
12
Output
Voltage
V
3.3
5
9
3.3
5
9
3.3
5
5
9
12
15
3.3
5
5
9
12
15
5
9
12
15
5
9
12
15
Output
Current
Input
Current at
Rated Load
mA mA
303 400
200 400
111 403
303 400
200 400
111 403
303 270
200 289
200 250
111 266
83 260
66 256
303 270
200 289
200 250
111 266
83 260
66 256
200 117
111 107
83 105
66 103
200 117
111 107
83 105
66 103
Efficiency
Isolation
Capacitance
MTTF1
%
Min. Typ.
pF
kHrs
68 72 30 1234
72 75 35 632
71 74 30 1204
68 72 30 1234
72 75 35 632
71 74 30 1204
70 74 40 619
66 69 28 2414
73 77 34 419
72 75 29 1173
73 78 30 633
74 78 32 360
70 74 40 619
66 69 28 2414
73 77 34 419
72 75 29 1173
73 78 30 633
74 78 32 360
68 72 35 620
72 78 50 488
73 79 57 360
76 81 60 252
68 72 35 620
72 78 50 488
73 79 57 360
76 81 60 252
Package
Style
DIP
SIP
DIP
SIP
DIP
SIP
NKE0505SEC/NKE0505DEC offers higher efficiency than NKE0505SC/NKE0505DC but over a narrower operating temperature range.
See temperature characteristics graph.
INPUT CHARACTERISTICS
Parameter
Conditions
Continuous operation, 3.3V input types
Voltage range
Continuous operation, 5V input types
Continuous operation, 12V input types
Reflected ripple current 3.3V input types
Min. Typ. Max.
2.97 3.3 3.63
4.5 5.0 5.5
10.8 12.0 13.2
40 60
ABSOLUTE MAXIMUM RATINGS
Lead temperature 1.5mm from case for 10 seconds
Internal power dissipation
Input voltage VIN, NKE03 types
Input voltage VIN, NKE05 types
Input voltage VIN, NKE12 types
260°C
530mW
5.5V
7V
15V
1. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
Units
V
mA p-p
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
KDC_NKE.K06 Page 1 of 7




NKE1215SC pdf, 반도체, 판매, 대치품
NKE Series
Isolated Sub-Miniature 1W Single Output DC/DC Converters
APPLICATION NOTES
Minimum load
The minimum load to meet datasheet specification is 10% of the full rated load across the specified input voltage range. Lower than 10% minimum loading will result in
an increase in output voltage, which may rise to typically double the specified output voltage if the output load falls to less than 5%.
Capacitive loading and start up
Typical start up times for this series, with a typical input voltage rise time of 2.2μs and output capacitance of 10μF, are shown in the table below. The product
series will start into a capacitance of 47μF with an increased start time, however, the maximum recommended output capacitance is 10μF.
NKE0303SC
NKE0305SC
NKE0309SC
NKE0503SC
NKE0505SC
NKE0505SEC
NKE0509SC
Start-up time
μs
544
1306
5250
496
1075
894
3140
NKE0512SC
NKE0515SC
NKE1205SC
NKE1209SC
NKE1212SC
NKE1215SC
Start-up time
μs
5040
9940
1671
2835
5295
8475
Typical Start-Up Wave Form
Ripple & Noise Characterisation Method
Ripple and noise measurements are performed with the following test configuration.
C1 1μF X7R multilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the DC/DC converter
C2
10μF tantalum capacitor, voltage rating to be a minimum of 1.5 times the output voltage of the DC/DC converter with an ESR of less
than 100mΩ at 100 kHz
C3 100nF multilayer ceramic capacitor, general purpose
R1 450Ω resistor, carbon film, ±1% tolerance
R2 50Ω BNC termination
T1 3T of the coax cable through a ferrite toroid
RLOAD
Resistive load to the maximum power rating of the DC/DC converter. Connections should be made via twisted wires
Measured values are multiplied by 10 to obtain the specified values.
Differential Mode Noise Test Schematic
SUPPLY
DC/DC Converter
++
Input Output
--
C1 C2 C3 R1
OSCILLOSCOPE
T1 R2
Y INPUT
R LOAD
www.murata-ps.com/support
KDC_NKE.K06 Page 4 of 7

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NKE1215SC 전자부품, 판매, 대치품
PACKAGE SPECIFICATIONS (continued)
RECOMMENDED FOOTPRINT DETAILS
8 Pin DIP Package
)0-&4
 
  
 
TUBE OUTLINE DIMENSIONS
8 Pin DIP Tube
 
 
 
NKE Series
Isolated Sub-Miniature 1W Single Output DC/DC Converters
4 Pin SIP Package
)0-&4
 

 
 




4 Pin SIP Tube
  
 
 
œ œ 
Unless otherwise stated all dimensions in inches (mm) ±0.5mm.
Tube length (8 Pin DIP) : 20.47 (520mm ±2mm).
Tube length (4 Pin SIP) : 20.67 (525mm ±2mm).
  
Tube Quantity : 40
RoHS COMPLIANCE INFORMATION
This series is compatible with RoHS soldering systems with a peak wave solder temperature of 260°C for 10 seconds. The pin termination finish
on the SIP package type is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate. The DIP types are Matte Tin over Nickel Preplate. Both
types in this series are backward compatible with Sn/Pb soldering systems.
For further information, please visit www.murata-ps.com/rohs
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
www.murata-ps.com/support
This product is subject to the following operating requirements
and the Life and Safety Critical Application Sales Policy:
Refer to: http://www.murata-ps.com/requirements/
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply
the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without
notice.
© 2014 Murata Power Solutions, Inc.
KDC_NKE.K06 Page 7 of 7

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