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NMR100C

P1-P3P4-P6P7-P9P10-P10
NMR Series
Isolated 1W Single Output DC/DC Converters
KDC_NMR.F01 Page 1 of 10
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SELECTION GUIDE
Order Code
Nominal Input
Voltage
Output
Voltage
Output Current
Input
Current at
Rated Load
Load
Regulation
Ripple &
Noise
3
Efficiency
(Min)
Efficiency
(Typ)
Isolation
Capacitance
MTTF
1
V V mA mA
% mV p-p
%pF
MIL. Tel.
Typ. Max. Typ. Max. kHrs
NMR100C 5 5 200 290 12 14 6 10 69 28 1847
NMR101C 5 12 83 260 6.9 7.7 4.6 10 77 33 981
NMR102C 5 15 67 253 6.5 7.5 4.3 10 79 40 667
NMR106C 12 5 200 121 12.5 13.4 5.3 10 69 36 1485
NMR107C 12 12 83 110 6.9 7.7 5 10 76 58 869
NMR108C 12 15 67 110 6.5 7.5 4 10 76 56 613
NMR118C 24 5 200 60 6.8 10 8 15 70 61 1253
NMR119C 24 12 83 53 2.8 4 7 15 78 98 784
NMR120C 24 15 67 52 2.5 3.5 8 15 80 122 566
Short Circuit Protection Option
NMR100PC 5 5 200 255 10 12 10 25 74 76.5 22 3095 61060
Recommended
Alternative
NMR112C 15 5 200 93 8.1 10 14 20 69 27 2110 MER1S1505SC
NMR113C 15 12 83 85 3.3 4 12 15 77 58 1790 MER1S1512SC
NMR114C 15 15 67 84 2.8 3.5 14 20 78 67 1560 MER1S1515SC
INPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Voltage range
Continuous operation, 5V input types 4.5 5 5.5
V
Continuous operation, 12V input types 10.8 12 13.2
Continuous operation, 15V input types 13.5 15 16.5
Continuous operation, 24V input types 21.6 24 26.4
Input short circuit current Short circuit variants 95 mA
Input reflected ripple
current
Short circuit types 2 15
mA p-p
5V & 12V input types 1.6 2
15V & 24V input types 5 10
OUTPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Rated Power
2
TA=-40°C to 85°C, See derating graph 1.0 W
Voltage Set Point Accuracy See tolerance envelope
Line regulation
High V
IN to low VIN ; Short circuit types 1.15 1.2
%/%
High V
IN to low VIN ; All other output types 1.0 1.2
ISOLATION CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Isolation voltage Flash tested for 1 second 1000 VDC
Resistance Viso=1000VDC 10 GΩ
ABSOLUTE MAXIMUM RATINGS
Lead temperature 1.5mm from case for 10 seconds 260°C
Input voltage V
IN, NMR100C, NMR101C, NMR102C 7V
Input voltage V
IN, NMR106C, NMR107C, NMR108C 15V
Input voltage V
IN, NMR112C, NMR113C, NMR114C 18V
Input voltage V
IN, NMR118C, NMR119C, NMR120C 28V
1. Calculated using MIL-HDBK-217 FN2 and Telcordia SR-332 calculation model with nominal input voltage at full load.
2. See derating graph.
3. See ripple & noise characterisation method.
All specifications typical at T
A=25°C, nominal input voltage and rated output current unless otherwise specified.
FEATURES
Short circuit protection option
UL 60950 recognised
1kVDC isolation ‘Hi Pot Test’
Wide temperature performance at full
1 watt load, –40°C to 85°C
Industry standard pinout
5V, 12V & 24V input
5V, 12V & 15V output
Fully encapsulated with toroidal magnetics
Custom solutions available
No electrolytic or tantalum capacitors
DESCRIPTION
The NMR series of industrial temperature range
DC/DC converters are the standard building
blocks for on-board distributed power systems.
They are ideally suited for providing single rail
supplies on primarily digital boards with the added
benefit of galvanic isolation to reduce switching
noise. Surface mount technology and advanced
packaging materials produce rugged reliable
performance over an extended temperature range
from -40ºC to 85ºC. For the NMR100PC protection
is continuous and auto-resetting on removal of the
short circuit.
NMR Series
Isolated 1W Single Output DC/DC Converters
KDC_NMR.F01 Page 2 of 10
www.murata-ps.com/support
GENERAL CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Switching frequency
5V input types 110
kHz
12V input types 160
15V input types 90
24V input types 80
Short circuit types 97
TEMPERATURE CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Specification All output types -40 85
°C
Storage -50 130
Case Temperature above ambient
5V output types 33
All other output types 28
Short circuit types
18
Cooling Free air convection
TOLERANCE ENVELOPES
+7%
Output Load Current (%)
Output Voltage
-5%
0%
V
NOM
100
75
50
25
10
+4%
Output Load Current (%)
Output Voltage
-3%
+1%
V
NOM
100
75
50
25
10
+2%
NMR118 NMR113, NMR 114, NMR119, NMR120
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.
+10%
Output Load Current (%)
Output Voltage
-7.5%
+2.5%
V
NOM
100
75
50
25
10
All other output types:
+10%
Output Load Current (%)
Output Voltage
-6%
0%
+5%
100
75
50
25
10
Short circuit types:
V
NOM
NMR Series
Isolated 1W Single Output DC/DC Converters
KDC_NMR.F01 Page 3 of 10
www.murata-ps.com/support
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 NMR series of DC/DC converters are all 100% production tested at their stated isolation voltage. This is 1kVDC for 1 second.
A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?”
The NMR is recognised 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 NMR 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.
RoHS COMPLIANCE INFORMATION
This series is compatible with RoHS soldering systems with a peak wave solder temperature of 260ºC for 10 seconds. The pin termination finish
on this product series is Tin Plate, Hot Dipped over Matte Tin with Nickel Preplate. The series is backward compatible with Sn/Pb soldering
systems.
For further information, please visit www.murata-ps.com/rohs
SAFETY APPROVAL
UL60950
The NMR series is recognised by Underwriters Laboratory (UL) to UL 60950 for functional insulation in a maximum still air ambient temperature of 100°C as measured at any point
on the case of the unit (hotspot).
FUSING
The NMR 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 0.5A
Input Voltage, 12V 0.25A
Input Voltage, 24V 0.12A
All fuses should be UL recognized, 125V rated.
File number E151252 applies.
TEMPERATURE DERATING GRAPHS
150100
50
0
-40
0
1
Safe Operating Area
85°C
Ambient Temperature (°C)
Output Power (W)
150100
50
0
-40
0
1
Safe Operating Area
85°C
Ambient Temperature (°C)
Output Power (W)
120°C
Short Circuit types.
All other types.
P1-P3P4-P6P7-P9P10-P10

NMR100C

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Isolated DC/DC Converters 5Vin 5Vout 200mA Isolated 1W
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