Murata NXJ2S2415MC Isolated 2w single output sm dc-dc converter Datasheet

NXJ2 Series
www.murata-ps.com
Isolated 2W Single Output SM DC-DC Converters
Switching
Frequency (Typ)
Isolation
Capacitance
mA
mA
%
%
FEATURES
5
550
400
7.5
10
50
110
„
Patents pending
NXJ2S1212MC
12
12
215
167
7
9
30
70
72
„
Lower Profile
NXJ2S1215MC
12
15
215
133
8
10
25
60
NXJ2S2405MC
24
5
110
400
8
10
70
170
NXJ2S2415MC
24
15
105
133
6.5
8
20
50
„
UL60950 Recognition pending
„
ANSI/AAMI ES60601-1, 2 MOOP, 1MOPP
recognition pending
„
5.2kVDC Isolation ‘Hi Pot Test’
„
Substrate Embedded Transformer
„
Automated Manufacture
„
Short Circuit Protection3
„
Halogen Free
Parameter
Voltage range
Input reflected ripple
current
The NXJ2 series has a MSL rating 2, and is compatible with a peak reflow solder temperature of
260ÚC as per J-STD-020.
pF
kHrs
140
2
2874 40967
75
120
2
1766 65080
75
77.5
110
2.2
1334 49049
73
76.5
100
2.4
2026 33111
74.5 78.5
95
2.4
1232 44260
68.5 72.5
Conditions
Min.
Typ.
Max.
Units
Continuous operation, 5V input types
Continuous operation, 12V input types
Continuous operation, 24V input types
5V input
12V & 24V input
4.5
10.8
21.6
5.0
12
24
15
5
5.5
13.2
26.4
V
Typ.
Max.
mA p-p
ISOLATION CHARACTERISTICS
Isolation voltage
The NXJ2 series is a new range of lower profile,
fully automated manufacture surface mount
DC-DC converters. The NXJ2 series automated
manufacturing process with substrate Embedded
Transformer, offers increased product reliability
and repeatability of performance in a halogen
free, iLGA inspectable package. The NXJ2 series,
industry standard footprint is compatible with
existing designs.
mVp-p
INPUT CHARACTERISTICS
Parameter
PRODUCT OVERVIEW
Output Current
V
5
Telecordia
Efficiency (Typ)
kHz
V
NXJ2S0505MC
Order Code1
MTTF2
MIL 217
Efficiency (Min)
Load Regulation
(Typ)
Load Regulation
(Max)
Output Ripple
& Noise (Typ)
Output Ripple
& Noise (Max)
%
Output Voltage
%
Nominal Input
Voltage
Rated Input Current
SELECTION GUIDE
Resistance
Conditions
Min.
Production tested for 1 second
Qualification tested for 1 minute
Viso= 1000VDC
5200
5200
10
Units
VDC
GΩ
OUTPUT CHARACTERISTICS
Parameter
Conditions
Rated power
Voltage set point accuracy
TA=-40°C to 85°C
See tolerance envelope
Min.
Line regulation
High VIN to low VIN
24V input types
All other input types
Typ.
Max.
Units
2.0
W
1
1.1
1.1
1.2
%/%
Typ.
Max.
Units
TEMPERATURE CHARACTERISTICS
Parameter
Conditions
Min.
Specification
Storage
All output types
-40
-50
Product temperature rise above ambient
Cooling
5V input types
12V input types
24V input types
Free air convection
85
125
°C
35
30
25
ABSOLUTE MAXIMUM RATINGS
Input voltage VIN, NXJ2S05 types
Input voltage VIN, NXJ2S12 types
Input voltage VIN, NXJ2S24 types
For full details go to
www.murata-ps.com/rohs
7V
15V
28V
1. Components are supplied in tape and reel packaging, please refer to package specification section. Orderable part numbers are
NXJ2SXXXXMC-R7 (135 pieces per reel), or NXJ2SXXXXMC-R13 (600 pieces per reel).
2. Calculated using MIL-HDBK-217 FN2 and Telecordia SR-332 calculation model at TA=25°C with nominal input voltage at full load.
3. Please refer to short circuit application notes.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
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KDC_NXJ2.A02 Page 1 of 13
NXJ2 Series
Isolated 2W Single Output SM 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 NXJ2 series of DC-DC converters are all 100% production tested at 5.2kVDC for 1 second and have been qualification tested at 5.2kVDC for 1 minute.
A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?”
The NXJ2 series is pending recognition by Underwriters Laboratory, please see safety approval section for more information. When the insulation in the NXJ2 is not used as a safety
barrier, i.e. provides functional isolation only, continuous or switched voltages across the barrier in excess of 1kV are sustainable. Long term reliability testing at these voltages
continues. Please contact Murata for further information.
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 NXJ2 series has a PCB embedded isolated transformer, using FR4 as an insolation barrier between primary and secondary windings. While parts
can be expected to withstand several times the stated test voltage, the isolation capability does depend on the FR4 insulation properties. Any material, including FR4 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 should be reduced by 20% from specified test voltage.
This consideration equally applies to agency recognized parts rated for better than functional isolation where the insulation is always supplemented by a further insulation system
of physical spacing or barriers.
SAFETY APPROVAL
ANSI/AAMI ES60601-1
The NXJ2 series is pending recognition by Underwriters Laboratory (UL) to ANSI/AAMI ES60601-1 and provides 1 MOPP (Means Of Patient Protection) and 2 MOOP (Means Of
Operator Protection) based upon a working voltage of 250 Vrms max, between input and output.
UL 60950
The NXJ2 series is pending recognition by Underwriters Laboratory (UL) to UL 60950 for reinforced insulation to a working voltage of 250Vrms.
FUSING
The NXJ2 Series of converters are not internally fused so to meet the requirements of UL an anti-surge input line fuse should always be used with ratings as defined below.
Input Voltage, 5V: 1A
Input Voltage, 12V: 400mA
Input Voltage, 24V: 250mA
All fuses should be UL recognized and rated to at least the maximum allowable DC input voltage.
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KDC_NXJ2.A02 Page 2 of 13
NXJ2 Series
Isolated 2W Single Output SM DC-DC Converters
CHARACTERISATION TEST METHODS
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
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
C2
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
DC/DC Converter
OSCILLOSCOPE
C1 C2 C3
+
SUPPLY
Input
-
+
R1
T1
R2
Y INPUT
Output
-
R LOAD
RoHS COMPLIANCE AND MSL INFORMATION
This series is compatible with Pb-Free soldering systems and is also backward compatible with Sn/Pb soldering systems.
The NXJ2 series can be soldered in accordance with J-STD-020 and have a classification temperature of 260°C and
moisture sensitivity level 2. The termination finish on this product is Gold with plating thickness 0.12 microns.
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KDC_NXJ2.A02 Page 3 of 13
NXJ2 Series
Isolated 2W Single Output SM DC-DC Converters
TOLERANCE ENVELOPES
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.
NXJ2S0505MC
NXJ2S1212MC
8%
6%
5%
3%
Output Voltage
Output Voltage
2%
-1%
-4%
10
25
50
75
-5%
100
10
25
50
75
100
Output Load Current (%)
Output Load Current (%)
NXJ2S1215MC
NXJ2S2405MC
9%
6%
-1%
Output Voltage
Output Voltage
5%
3%
1%
-3%
10
25
75
50
Output Load Current (%)
-6%
100
10
25
75
50
Output Load Current (%)
100
NXJ2S2415MC
7%
Output Voltage
4%
1%
-3%
10
25
75
50
Output Load Current (%)
100
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KDC_NXJ2.A02 Page 4 of 13
NXJ2 Series
Isolated 2W Single Output SM DC-DC Converters
EFFICIENCY VS LOAD
5V Input
80
Efficiency (%)
70
60
50
40
NXJ2S0505MC
30
20
10
0
0
10
20
30
40
50
60
70
80
90
100
Load (%)
12V Input
80
70
Efficiency (%)
60
50
NXJ2S1212MC
NXJ2S1215MC
40
30
20
10
0
0
10
20
30
40
50
60
70
80
90
100
Load (%)
24V Input
80
70
Efficiency (%)
60
50
NXJ2S2405MC
NXJ2S2415MC
40
30
20
10
0
0
10
20
30
40
50
60
70
80
90
100
Load (%)
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KDC_NXJ2.A02 Page 5 of 13
NXJ2 Series
Isolated 2W Single Output SM DC-DC Converters
TEMPERATURE DERATING
NXJ2S1212MC
100
100
90
90
80
80
70
70
60
50
5.5Vin
40
5Vin
30
Maximum Load %
Maximum Load %
NXJ2S0505MC
60
50
13.2Vin
40
12Vin
30
20
20
10
10
0
0
55
60
65
70
75
80
85
90
95
55
100
60
65
NXJ2S1215MC
75
80
85
90
95
100
NXJ2S2405MC
100
100
90
90
80
80
70
70
60
50
13.2Vin
40
12Vin
Maximum Load %
Maximum Load %
70
Temperature °C
Temperature °C
60
50
26.4Vin
30
30
20
20
10
24Vin
40
10
0
55
60
65
70
75
80
85
90
95
0
100
55
Temperature °C
60
65
70
75
80
85
90
95
100
Temperature °C
NXJ2S2415MC
100
90
80
Maximum Load %
70
60
50
26.4Vin
24Vin
40
30
20
10
0
55
60
65
70
75
80
85
90
95
100
Temperature °C
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KDC_NXJ2.A02 Page 6 of 13
NXJ2 Series
Isolated 2W Single Output SM DC-DC Converters
APPLICATION NOTES
Short Circuit Performance
The NXJ2 series short circuit performance is currently being evaluated. Please contact Murata for further information.
Advisory Notes
Minimum Load
The NXJ2 series is not hermetically sealed, customers should ensure that parts
are fully dried before input power application.
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 & Start Up
Typical start up times for this series, with a typical input voltage rise time of 2.2μs with resistive only load, and with added output capacitance of
10μF, are shown in the table below.
Typical Start-Up Wave Form
Start-Up Time
Part Number
NXJ2S0505MC
NXJ2S1212MC
NXJ2S1215MC
NXJ2S2405MC
NXJ2S2415MC
μS
260
840
1200
160
1110
Output Ripple Reduction
By using the values of inductance and capacitance stated, the output ripple at the rated load is lowered to 5mV p-p max.
Component selection
Capacitor: It is required that the ESR (Equivalent Series Resistance) should be as low as possible, ceramic types are recommended. The voltage rating should be at least
twice (except for 15V output), the rated output voltage of the DC-DC converter.
Inductor: The rated current of the inductor should not be less than that of the output of the DC-DC converter. At the rated current, the DC resistance of the inductor should
be such that the voltage drop across the inductor is <2% of the rated voltage of the DC-DC converter. The SRF (Self Resonant Frequency) should be >20MHz.
NXJ2S0505MC
NXJ2S1212MC
NXJ2S1215MC
NXJ2S2405MC
NXJ2S2415MC
L, μH
4.7
4.7
4.7
4.7
4.7
Inductor
SMD
Through Hole
82472C
11R472C
82472C
11R472C
82472C
11R472C
82472C
11R472C
82472C
11R472C
Capacitor
C, μF
10
4.7
4.7
10
4.7
L
Power
Source
DC
C
Load
DC
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KDC_NXJ2.A02 Page 7 of 13
NXJ2 Series
Isolated 2W Single Output SM DC-DC Converters
EMC FILTERING AND SPECTRA
FILTERING
The following table shows the additional input capacitor and input inductor typically required to meet EN 55022 Curve A & B CISPR22 Average Limit as shown in the following plots. The following plots show positive and negative average limit and CISPR22 Average Limit A (pink line) and CISPR22 Average Limit B (green line) adherence limits.
The below values are for guidance only and should be evaluated in the application circuit.
L
Power
Source
NXJ2S0505MC
NXJ2S1212MC
NXJ2S1215MC
NXJ2S2405MC
NXJ2S2415MC
Inductor
SMD
Through Hole
84103C
11R103C
82103C
11R103C
82103C
11R103C
82103C
11R103C
82103C
11R103C
L, μH
10
10
10
10
10
DC
Load
C
DC
C, μF
15
15
15
15
15
Capacitor
SMD
GRM55ER71E156KA01
GRM55ER71E156KA01
GRM55ER71E156KA01
KRM55LR7YA156KH01
KRM55LR7YA156KH01
NXJ2S0505MC (Average)
80
80
70
70
60
60
50
50
dBuV
dBuV
NXJ2S0505MC (Quasi Peak)
40
40
30
30
20
20
10
10
0
1.00E+05
1.00E+06
1.00E+07
0
1.00E+05
1.00E+08
1.00E+06
Frequency (Hz)
80
80
70
70
60
60
50
50
40
40
30
30
20
20
10
10
1.00E+06
1.00E+08
NXJ2S1212MC (Average)
dBuV
dBuV
NXJ2S1212MC (Quasi Peak)
0
1.00E+05
1.00E+07
Frequency (Hz)
1.00E+07
Frequency (Hz)
1.00E+08
0
1.00E+05
1.00E+06
1.00E+07
1.00E+08
Frequency (Hz)
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KDC_NXJ2.A02 Page 8 of 13
NXJ2 Series
Isolated 2W Single Output SM DC-DC Converters
EMC FILTERING AND SPECTRA
NXJ2S1215MC (Average)
80
80
70
70
60
60
50
50
dBuV
dBuV
NXJ2S1215MC (Quasi Peak)
40
40
30
30
20
20
10
10
0
1.00E+05
1.00E+06
1.00E+07
0
1.00E+05
1.00E+08
1.00E+06
Frequency (Hz)
80
80
70
70
60
60
50
50
40
40
30
30
20
20
10
10
1.00E+06
1.00E+07
0
1.00E+05
1.00E+08
1.00E+06
1.00E+08
NXJ2S2415MC (Average)
80
80
70
70
60
60
50
50
dBuV
dBuV
NXJ2S2415MC (Quasi Peak)
40
40
30
30
20
20
10
10
1.00E+06
1.00E+07
Frequency (Hz)
Frequency (Hz)
0
1.00E+05
1.00E+08
NXJ2S2405MC (Average)
dBuV
dBuV
NXJ2S2405MC (Quasi Peak)
0
1.00E+05
1.00E+07
Frequency (Hz)
1.00E+07
Frequency (Hz)
1.00E+08
0
1.00E+05
1.00E+06
1.00E+07
1.00E+08
Frequency (Hz)
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KDC_NXJ2.A02 Page 9 of 13
NXJ2 Series
Isolated 2W Single Output SM DC-DC Converters
PACKAGE SPECIFICATIONS
Mechanical Dimensions - 5V & 12V Input Types
Pin Connections
15.49 [0.610]
SMA PICKUP POINT
Pin
Function
1
2
5
6
7
8
11
12
+VIN
-VIN
-VOUT
+VOUT
NC
NC
-VIN
NC
NC - No connection.
4.41±0.45 [0.174±0.018]
S
SEATING PLANE
SMA PICKUP POINT
(TOP OF PCB)
3.16±0.24 [0.124±0.009]
0.1 (0.004) S
1.65 [0.065]
x8 PINS
1
2
5 6
11.43 [0.450]
12 11
8 7
1.45 [0.057]
x5 PLACES
x 8 PLACES 0.61 [0.024]
2.54 [0.100]
2.54 [0.100]
12.70 [0.500]
All dimensions in mm(inches), Controlling dimension is mm. Tolerances (unless otherwise stated) ±0.2 (0.008).
Components shown for reference only
Weight: 1.38g
Recommended Footprint Details
12.70 [0.500]
x8 PLACES
2.30 [0.091]
RECOMMENDED
ISOLATION BARRIER
x8 PLACES
1.00 [0.039]
2.54 [0.100]
2.54 [0.100]
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KDC_NXJ2.A02 Page 10 of 13
NXJ2 Series
Isolated 2W Single Output SM DC-DC Converters
PACKAGE SPECIFICATIONS
Mechanical Dimensions - 24V Input Type
Pin Connections
16.00 [0.630]
SMA PICKUP POINT
Pin
Function
1
2
5
6
7
8
11
12
+VIN
-VIN
-VOUT
+VOUT
NC
NC
-VIN
NC
NC - No connection.
4.41±0.45 [0.174±0.018]
S
SEATING PLANE
SMA PICKUP POINT
(TOP OF PCB)
3.16±0.19 [0.124±0.007]
0.1 (0.004) S
1.65 [0.065]
x8 PINS
1
2
5 6
14.48 [0.570]
12 11
8 7
1.45 [0.057]
x5 PLACES
x 8 PLACES 0.61 [0.024]
2.54 [0.100]
2.54 [0.100]
12.70 [0.500]
All dimensions in mm(inches), Controlling dimension is mm. Tolerances (unless otherwise stated) ±0.2 (0.008).
Components shown for reference only
Weight: 1.78g
Recommended Footprint Details
12.70 [0.500]
x8 PLACES
2.30 [0.091]
RECOMMENDED
ISOLATION BARRIER
x8 PLACES
1.00 [0.039]
2.54 [0.100]
2.54 [0.100]
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KDC_NXJ2.A02 Page 11 of 13
NXJ2 Series
Isolated 2W Single Output SM DC-DC Converters
TAPE & REEL SPECIFICATIONS
TAPE OUTLINE DIMENSIONS - 5V & 12V Input Types
Tape & Reel specifications shall conform with current EIA-481 standard
Unless otherwise stated all dimensions in mm(inches)
Controlling dimension is mm
Components shall be orientated within the carrier tape as indicated
TAPE OUTLINE DIMENSIONS - 24V Input Type
Tape & Reel specifications shall conform with current EIA-481 standard
Unless otherwise stated all dimensions in mm(inches)
Controlling dimension is mm
Components shall be orientated within the carrier tape as indicated
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KDC_NXJ2.A02 Page 12 of 13
NXJ2 Series
Isolated 2W Single Output SM DC-DC Converters
TAPE & REEL SPECIFICATIONS CONTINUED
REEL OUTLINE DIMENSIONS
REEL PACKAGING DETAILS
Tape & Reel specifications shall conform with current EIA-481 standard
Unless otherwise stated all dimensions in mm(inches)
Controlling dimension is mm
# Measured at hub
## Six equi-spaced slots on 180mm/7” reel
Carrier tape pockets shown are
illustrative only - Refer to carrier tape
diagram for actual pocket details.
Reel Quantity: 7” - 135 or 13” - 600
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.
© 2018 Murata Power Solutions, Inc.
www.murata-ps.com/support
KDC_NXJ2.A02 Page 13 of 13
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