Murata NMK2415SAC 3kvdc isolated 2w single & dual output dc/dc converter Datasheet

NMK Series
www.murata-ps.com
3kVDC Isolated 2W Single & Dual Output DC/DC Converters
„
Wide temperature performance at full
2 Watt load, –40°C to 85°C
„
UL 94V-0 package material
„
No heatsink required
„
Industry standard pinout
„
3kVDC isolation (1 minute)
„
5V, 12V, 15V & 24V inputs
„
5V, 9V, 12V, & 15V output
„
Fully encapsulated with toroidal
magnetics
„
No electrolytic or tantalum capacitors
PRODUCT OVERVIEW
The NMK series of industrial temperature range
DC/DC converters, available in industry standard
SIP packaging offers a power upgrade path from
the 1W NMV series. The un-regulated NMK series
has superior output voltage set point accuracy in
conjunction with excellent load regulation for this
converter type.
Unbalanced loading capabilities on dual output
variants, all of the rated output power may be
drawn from a single output 3.
mVp-p
20
25
20
20
30
20
23
16
55
40
40
40
70
55
55
70
40
30
20
20
30
20
20
20
50
35
35
35
50
45
45
35
%
%
pF
kHrs
80
83
83
84
80
83
85
84
81
83
84
85
80
83
84
85
81
83
84
84
80
83
84
83
81
82
84
85
81
84
85
85
83
86
87
87
83
87
88
89
84
86
87
88
84
87
88
88
83
86
87
87
84
87
87
87
84
86
88
88
84
87
89
89
28
36
36
34
33
53
62
56
37
51
63
72
41
59
77
85
28
33
35
31
35
50
53
57
43
47
65
74
43
65
82
86
3998
3718
3328
2855
3532
2417
2246
2020
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
2324
2158
1931
1655
1952
2021
1821
1574
TBD
TBD
TBD
TBD
TBD
TBD
TBD
TBD
MTTF2
18
20
18
17
25
19
17
14
34
21
20
20
42
30
29
34
24
18
14
12
21
16
13
13
27
19
18
14
30
26
24
17
Efficiency (Min.)
7.3
5.9
5.1
4.5
4.9
3.1
2.9
2.4
5.5
4
3.5
3.5
5.5
3.5
3
3
6.2
5.3
4.8
5.2
3.9
2.8
2.7
2.4
5
3.5
3
3
5
3.5
3
3
%
5.7
4.2
3.8
3.4
4.2
2.6
2.4
2.0
4.3
3
2.5
2.4
4.2
2.7
2.1
2.2
5
3.9
3.7
3.5
3.4
2.4
2.2
1.9
3.7
2.4
2.2
2.0
3.4
2.3
1.9
1.7
Ripple & Noise
(Max)1
470
455
450
450
200
190
190
185
158
153
150
149
99
95
94
93
470
455
450
450
200
190
190
190
156
153
151
150
96
94
93
93
Load Regulation
(Typ)
Input Current at
Rated Load
mA
400
222
167
133
400
222
167
133
400
222
167
133
400
222
167
133
±200
±111
±83
±67
±200
±111
±83
±67
±200
±111
±83
±67
±200
±111
±83
±67
Isolation
Capacitance
„
Power density 1.31W/cm3
mA
5
9
12
15
5
9
12
15
5
9
12
15
5
9
12
15
±5
±9
±12
±15
±5
±9
±12
±15
±5
±9
±12
±15
±5
±9
±12
±15
Efficiency (Typ.)
„
Efficiency from 80%
V
5
5
5
5
12
12
12
12
15
15
15
15
24
24
24
24
5
5
5
5
12
12
12
12
15
15
15
15
24
24
24
24
Ripple & Noise
(Typ)1
„
RoHS compliant
V
NMK0505SAC
NMK0509SAC
NMK0512SAC
NMK0515SAC
NMK1205SAC
NMK1209SAC
NMK1212SAC
NMK1215SAC
NMK1505SAC
NMK1509SAC
NMK1512SAC
NMK1515SAC
NMK2405SAC
NMK2409SAC
NMK2412SAC
NMK2415SAC
NMK0505SC
NMK0509SC
NMK0512SC
NMK0515SC
NMK1205SC
NMK1209SC
NMK1212SC
NMK1215SC
NMK1505SC
NMK1509SC
NMK1512SC
NMK1515SC
NMK2405SC
NMK2409SC
NMK2412SC
NMK2415SC
Load Regulation
(Max)
„
UL 60950 recognized
Output
Voltage
FEATURES
Nominal Input
Voltage
Order Code3
Output Current
SELECTION GUIDE
INPUT CHARACTERISTICS
Parameter
Conditions
Min.
Typ.
Max.
Units
Voltage range
Continuous operation, 5V input types
Continuous operation, 12V input types
Continuous operation, 15V input types
Continuous operation, 24V input types
4.5
10.8
13.5
21.6
5
12
15
24
5.5
13.2
16.5
26.4
V
NMK2405SAC, NMK2409SAC, NMK2405SC,
NMK2409SC
14
25
All other variants
7.5
15
Reflected ripple current
mA p-p
1. See Ripple & Noise characterisation method.
2. Calculated using MIL-HDBK-217F FN2 with nominal input voltage at full load.
3. See application notes on page 3.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
For full details go to
www.murata-ps.com/rohs
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KDC_NMK.E03 Page 1 of 6
NMK Series
3kVDC Isolated 2W Single & Dual Output DC/DC Converters
OUTPUT CHARACTERISTICS
Parameter
Conditions
TA=-40°C to 85°C
Rated Power
Voltage Set Point Accuracy
Line regulation
Min.
Typ.
See tolerance envelope
High VIN to low VIN
Max.
Units
2
W
1.05
1.2
%/%
Typ.
Max.
Units
ABSOLUTE MAXIMUM RATINGS
Lead temperature 1.5mm from case for 10 seconds
Input voltage VIN, NMK05 types
Input voltage VIN, NMK12 types
Input voltage VIN, NMK15 types
Input voltage VIN, NMK24 types
260°C
7V
15V
18V
28V
ISOLATION CHARACTERISTICS
Parameter
Conditions
Min.
Isolation test voltage
Resistance
Flash tested for 1 minute
Viso= 1000VDC
3000
10
Conditions
Min.
VDC
GΩ
GENERAL CHARACTERISTICS
Parameter
Typ.
Switching frequency
Max.
Units
60
kHz
TEMPERATURE CHARACTERISTICS
Parameter
Conditions
Min.
Specification
Storage
All output types
-40
-50
Case Temperature above ambient
Cooling
5V output types & NMK1509SAC (Except NMK1505S(A)C & NMK2405S(A)
NMK1505S(A)C & NMK2405S(A)C
All other output types
Free air convection
TEMPERATURE DERATING GRAPH
NMKXXXXSAC
°C
5%
Safe Operating Area
2%
Typic
a
l Loa
VNOM
d Lin
e
0%
Output Voltage
85°C
Output Voltage
Output Power (W)
0
-40
Units
85
125
28
32
25
NMKXXXXSC
5%
1
Max.
TOLERANCE ENVELOPE
3
2
Typ.
Typic
a
l Loa
VNOM
1%
0%
d Lin
e
-3%
100
50
0
Ambient Temperature (°C)
150
10
25
50
75
Output Load Current (%)
-4%
100
10
25
50
75
100
Output Load Current (%)
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KDC_NMK.E03 Page 2 of 6
NMK Series
3kVDC Isolated 2W 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 NMK series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 3kVDC for 1 minute.
A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?”
The NMK 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 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 NMK series has toroidal isolation transformers, with no additional insulation between primary and secondary windings of enameled 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
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.
This consideration equally applies to agency recognized 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 NMK 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 E179522 applies.
The NMK Series of converters are not internally fused so to meet the requirements of UL 60950 an anti-surge input line fuse should always be used as below:
NMK05xxSC/SAC: 2A
NMK12xxSC/SAC: 0.75A
NMK15xxSC/SAC: 0.75A
NMK24xxSC/SAC: 0.375A
RoHS COMPLIANT 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
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%.
Unbalanced Load
The NMK series offers unbalanced loading capabilities with up to the full 2W available from a single output. However, when operated in this mode there may be a slight
performance decrease in efficiency and load regulation.
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KDC_NMK.E03 Page 3 of 6
NMK Series
3kVDC Isolated 2W Single & Dual Output DC/DC Converters
APPLICATION NOTES (continued)
Ripple & Noise Characterisation Method
All measurement to be taken with the following components connected to the UUT as detailed below.
50 Ohm coax cable, solder connections one end, BNC plug at the other end.
C1
C2
C3
R1
R2
T1
RLOAD
1μF X7R multilayer ceramic capacitor rated at minimum 3 x the output voltage of the UUT
10μF tantalum capacitor rated at minimum 1.5 x the output voltage of the UUT with ESR of less than 100 milliohms at 100 kHz e.g. AVX TPS
100nF multilayer ceramic capacitor, general purpose
450 Ohm resistor, carbon film, ±1%
50 Ohm BNC termination
3T of the coax cable through a ferrite toroid eg Ferroxcube TN32/19/13-3E25
Resistive load at the UUT maximum rating. Connections via twisted wires.
Differential Mode Noise Test Schematic
DC/DC Converter
OSCILLOSCOPE
C1 C2 C3
+
R2
T1
+
Input
SUPPLY
R1
Y INPUT
Output
-
-
R LOAD
EFFICIENCY VS LOAD
NMK05XXSAC
NMK12XXSAC
90
90
80
15V
12V
9V
5V
70
60
50
Efficiency (%)
Efficiency (%)
80
40
70
15V
12V
9V
5V
60
50
40
30
30
20
20
10
10
0
0
0
10
20
30
40
50
Load (%)
60
70
80
90
100
0
10
20
30
40
50
60
70
80
90
100
Load (%)
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KDC_NMK.E03 Page 4 of 6
NMK Series
3kVDC Isolated 2W Single & Dual Output DC/DC Converters
EFFICIENCY VS LOAD (continued)
NMK15XXSAC
NMK24XXSAC
90
90
80
80
70
15V
12V
9V
5V
60
50
40
Efficiency (%)
Efficiency (%)
70
30
40
30
20
10
10
0
10
20
30
40
50
60
Load (%)
70
80
90
100
0
110
0
10
20
30
40
60
70
80
90
100
70
80
90
80
90
100
110
NMK12XXSC
90
90
80
80
15V
12V
9V
5V
60
50
15V
12V
9V
5V
70
Efficiency (%)
70
40
30
60
50
40
30
20
20
10
10
0
10
20
30
40
50
60
70
80
90
0
100
0
10
20
30
40
Load (%)
50
60
100
Load (%)
NMK15XXSC
NMK24XXSC
90
90
80
80
70
70
15V
12V
9V
5V
60
50
Efficiency (%)
Efficiency (%)
50
Load (%)
NMK05XXSC
0
15V
12V
9V
5V
50
20
0
Efficiency (%)
60
40
30
60
40
30
20
20
10
10
0
0
10
20
30
40
50
60
Load (%)
70
80
90
100
110
15V
12V
9V
5V
50
0
0
10
20
30
40
50
60
Load (%)
70
110
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KDC_NMK.E03 Page 5 of 6
NMK Series
3kVDC Isolated 2W Single & Dual Output DC/DC Converters
PACKAGE SPECIFICATIONS
MECHANICAL DIMENSIONS
RECOMMENDED FOOTPRINT DETAILS
19.65 (0.774) (Max.)
4 HOLES
(0.045)
Ø 1.15
1.00 (0.040)
7.65
(0.301)
(Max.)
10.15
(0.4)
(Max.)
*
0.40 (0.0016)
Min.
5 6* 7
1 2
4.60 (0.181)
3.60 (0.142)
2.54 (0.1)
NMK0505SAC
XYYWW
0.1 (0.00394)
2.54 (0.1)
0.50 (0.020)
2.54 (0.1)
* Hole not required for single output variants.
Unless otherwise stated all dimensions in mm (inches) ±0.5mm.
2.52 (0.099)
1.54 (0.061)
0.30 (0.0118)
0.20 (0.0079)
TUBE OUTLINE DIMENSIONS
9.30 (0.366)
1.45 (0.057)
1.00 (0.039)
15.24 (0.6)
Weight: 2.8g
12.43 (0.489)
* Pin not fitted on single output variants.
Single output variants
Pin
Function
1
2
5
7
+VIN
-VIN
-VOUT
+VOUT
Dual output variants
Pin
Function
1
2
5
6
7
+VIN
-VIN
-VOUT
OV
+VOUT
0.50 (0.020)
PIN CONNECTIONS
18.00 (0.709)
All dimensions in mm ±0.25 (inches ±0.01). All pins on a 2.54 (0.1) pitch and within ± 0.25 (0.01) of true position.
5.00 (0.2)
Unless otherwise stated all dimensions in mm (inches) ±0.5mm.
Tube length : 520mm ±2mm (20.47).
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
ISO 9001 and 14001 REGISTERED
Tube Quantity : 25
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.
© 2012 Murata Power Solutions, Inc.
www.murata-ps.com/support
KDC_NMK.E03 Page 6 of 6
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