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NTH0515MC-R

P1-P3P4-P6
NTH Series
Isolated 2W Dual Output SM DC/DC Converters
KDC_NTH.C03 Page 1 of 6
www.murata-ps.com
www.murata-ps.com/support
For full details go to
www.murata-ps.com/rohs
　
SELECTION GUIDE
Order Code
1
Nominal
Input
Voltage
Output
Voltage
Output
Current
Input
Current at
Rated Load
Efficiency
Isolation
Capacitance
MTTF
2
V V mA mA % pF kHrs
NTH0505MC 5 ±5 ±200 500 80 27 2175
NTH0509MC 5 ±9 ±111 494 81 34 913
NTH0512MC 5 ±12 ±83 488 82 39 465
NTH0515MC 5 ±15 ±67 476 84 37 257
NTH1205MC 12 ±5 ±200 208 80 35 675
NTH1209MC 12 ±9 ±111 201 83 57 472
NTH1212MC 12 ±12 ±83 198 84 66 315
NTH1215MC 12 ±15 ±67 198 84 63 204
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
Reflected ripple current
5V input types 40
mA p-p
12V input types 30
OUTPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Rated power
3
TA=-40°C to 85°C 2.0 W
Voltage set point
accuracy
NTHXX05, 10% to 100% load -5.0 7.5
%
All other variants, 10% to 100% load -5.0 5.0
Line regulation High V
IN to low VIN 1.0 1.2 %/%
Load regulation
2
10% load to rated load, 5V output types 5.0 10
%
10% load to rated load, all other output types 3.0 10
Ripple & noise
BW=DC to 20MHz, 5V output types 150 200
mV p-p
BW=DC to 20MHz, 9V output types 100 150
BW=DC to 20MHz, 12V output types 80 150
BW=DC to 20MHz, 15V output types 70 150
ISOLATION CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Isolation test voltage Flash tested for 1 second 1000 VDC
Resistance Viso= 500VDC 1 10 GΩ
GENERAL CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Switching frequency
All 5V input types 95
kHz
All 12V input types 90
ABSOLUTE MAXIMUM RATINGS
Internal power dissipation 550mW
Input voltage V
IN, NTH05 types 7V
Input voltage V
IN, NTH12 types 15V
1. If components are required in tape and reel format suffix order code code with -R, e.g. NTH0505MC-R.
2. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
3. See derating graph.
All specifications typical at T
A=25°C, nominal input voltage and rated output current unless otherwise specified.
DESCRIPTION
The NTH series of miniature surface mounted
DC/DC converters employ leadframe technol-
ogy and transfer moulding techniques to bring
all of the benefits of IC style packaging to hy-
brid circuitry. The component lead termination
of this product range is lead-free compatible,
therefore the converter can be soldered in a
lead-free soldering process. Co-planarity of the
lead positions is based upon IEC 191-6:1990.
The devices are suitable for all applications
where high volume production is envisaged.
FEATURES
RoHS compliant
Efficiency up to 84%
Wide temperature performance at full
2 Watt load, –40°C to 85°C
UL 94V-0 Package material
Lead frame technology
5V & 12V Input
5V, 9V, 12V & 15V Output
Internal SMD construction
Dual isolated output
1kVDC Isolation
MTTF up to 2.17 million hours
Power density 1.61W/cm
3
No heatsink required
Custom solutions available
Multi layer ceramic capacitors
NTH Series
Isolated 2W Dual Output SM DC/DC Converters
KDC_NTH.C03 Page 2 of 6
www.murata-ps.com/support
TEMPERATURE CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Specification All output types -40 85
°C
Storage -55 125
Case temperature rise above
ambient
5V output types 30
All other output types
25
Cooling Free air convection
TOLERANCE ENVELOPE
TEMPERATURE DERATING GRAPH
150100
50
0
-40
0
1.0
2.0
3.0
Safe Operating Area
85°C
Ambient Temperature (°C)
Output Power (W)
RoHS COMPLIANCE INFORMATION
This series is compatible with RoHS soldering
systems with a peak reflow solder temperature
of 245ºC and time above liquidus of 217ºC
for 60 seconds. The pin termination finish on
this product series is Gold, plating thickness
0.1 microns minimum. The series is backward
compatible with Sn/Pb soldering systems.
For further information, please visit www.murata-ps.com/rohs
Output Load Current (%)
Output Voltage
-5.0%
-1.5%
+2.0%
Typical Load Line
10075
50
25
10
+5%
+1.5%
-2.0%
Output Load Current (%)
Output Voltage
-5.0%
-1.25%
+2.5%
Typical Load Line
10075
50
25
10
0%
+7.5%
+3.75%
5V output types All other output types
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 NTH 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?”
For a part holding no specific agency approvals, such as the NTH series, 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 NTH 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.
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.
NTH Series
Isolated 2W Dual Output SM DC/DC Converters
KDC_NTH.C03 Page 3 of 6
www.murata-ps.com/support
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.
Ripple & Noise Characterisation Method
Ripple and noise measurements are performed with the following test configuration.
C1 1µF X7R m ultilayer 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 100m at 100 kHz
C3 100nF multilayer ceramic capacitor, general purpose
R1 450 resistor, carbon film, ±1% tolerance
R2 50 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
OSCILLOSCOPE
Y INPUT
SUPPLY
C1 C2 C3 R1 T1
R2
Input Output
DC/DC Converter
R LOAD
+
+
-
-
Typical Start-Up Wave Form
Start-up time
µs
NTH0505MC 1026
NTH0509MC 3625
NTH0512MC 5750
NTH0515MC 8330
NTH1205MC 691
NTH1209MC 2645
NTH1212MC 3285
NTH1215MC 6120
P1-P3P4-P6

NTH0515MC-R

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Description:
Isolated DC/DC Converters 5V +/-15Vout +/-67mA Isolated 2W SMT
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