NTV Series
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3kVDC Isolated 1W Dual Output SM DC/DC Converters
SELECTION GUIDE
Nominal Input
Output Output Isolation
2
Input Current at Efciency MTTF
1
Order Code Voltage Current Capacitance
Voltage Rated Load
V V mA mA % pF kHrs
NTV0505MC 5 5 100 282 71 33 1697
NTV0509MC 5 9 55 260 77 38 682
NTV0512MC 5 12 42 253 79 44 343
NTV0515MC 5 15 33 250 80 43 188
FEATURES
NTV1205MC 12 5 100 114 73 50 559
RoHS compliant
NTV1209MC 12 9 55 105 79 72 375
NTV1212MC 12 12 42 104 80 89 243
Efciency up to 82%
NTV1215MC 12 15 33 101 82 100 154
Wide temperature performance at full
When operated with additional external load capacitance the rise time of the input voltage will determine the maximum external
1 Watt load, 40C to 85C capacitance value for guaranteed start up. The slower the rise time of the input voltage the greater the maximum value of the
additional external capacitance for reliable start up.
UL 94V-0 package material
2
INPUT CHARACTERISTICS
Footprint over pins 1.64cm
Parameter Conditions Min. Typ. Max. Units
Lead frame technology
Continuous operation, 5V input types 4.5 5 5.5
Voltage range V
Dual isolated output Continuous operation, 12V input types 10.8 12 13.2
Reected ripple current 41 47 mA p-p
5V & 12V input
5V, 9V, 12V and 15V output
OUTPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Internal SMD construction
Rated Power TA=-40C to 85C 1.0 W
Toroidal magnetics
Voltage Set Point Accuracy See tolerance envelope
Line regulation High VIN to low VIN 1.0 1.2 %/%
Plastic encapsulated
10% load to rated load, 5V output types 10 12
3kVDC isolation (1 minute)
10% load to rated load, 9V output types 6.5 8.0
3
Load Regulation %
10% load to rated load, 12V output types 6.0 8.5
MTTF up to 1.7 million hours
10% load to rated load, 15V output types 6.0 7.0
3
Power density 1.36W/cm
BW=DC to 20MHz, 5V output types 50 75
No heatsink required BW=DC to 20MHz, 9V output types 40 65
Ripple and Noise mV p-p
BW=DC to 20MHz, 12V output types 40 60
Custom solutions available
BW=DC to 20MHz, 15V output types 40 60
Multi layer ceramic capacitors
ABSOLUTE MAXIMUM RATINGS
Internal power dissipation 550mW
PRODUCT OVERVIEW
Input voltage VIN, NTV05 types 7V
The NTV series of 3kV isolation miniature
Input voltage VIN, NTV12 types 15V
surface mounted DC/DC converters employ
leadframe technology and transfer moulding
1. If components are required in tape and reel format sufx order code code with -R, e.g. NTV0505MC-R.
techniques to bring all of the benets of IC style
2. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
packaging to hybrid circuitry. The co-planar-
3. 12V input types have typically 3% less load regulation change.
ity of the pin positions is based upon IEC
All specications typical at TA=25C, nominal input voltage and rated output current unless otherwise specied.
191-6:1990. The devices are suitable for all
applications where high volume production is
envisaged.
For full details go to
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KDC_NTV.F02 Page 1 of 4Typical Load Line
NTV Series
3kVDC Isolated 1W Dual Output SM DC/DC Converters
ISOLATION CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Isolation test voltage Flash tested for 1 minute 3000 VDC
Resistance Viso= 1000VDC 10 G
GENERAL CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
5V input types 115
Switching frequency kHz
12V input types 120
TEMPERATURE CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Specication All output types -40 85
Storage -55 125
C
5V output types 33
Case temperature above ambient
All other output types 25
Cooling Free air convection
TOLERANCE ENVELOPE
TEMPERATURE DERATING GRAPH
1.5
+10%
+5%
+2.5%
85C
1.0
V
NOM
-2.5%
-7.5%
0.5 Safe Operating Area
0
100
10 25 50 75
-40 0 50 100 150
Output Load Current (%)
Ambient Temperature (C)
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, ap-
plied for a specied time, across a component designed to provide electrical isolation, to verify the integrity of that isolation.
Murata Power Solutions NTV 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?
For a part holding no specic agency approvals, such as the NTV 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 NTV 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 there-
fore strongly advise against repeated high voltage isolation testing, but if it is absolutely required, that the voltage be reduced by 20% from specied 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 insula-
tion system of physical spacing or barriers.
MINIMUM LOAD
The minimum load to meet datasheet specication is 10% of the full rated load across the specied input voltage range. Lower than 10% minimum loading will result in
an increase in output voltage, which may rise to typically double the specied output voltage if the output load falls to less than 5%.
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KDC_NTV.F02 Page 2 of 4
Output Power (W)
Output Voltage