NMA0515SC Murata Power Solutions Inc, NMA0515SC Datasheet - Page 3

• Manufacturer Part Number: NMA0515SC
• Description: CONV DC/DC 1W 5VIN 15VOUT SIP DL
• Manufacturer: Murata Power Solutions Inc
• Series: NMAr
• Type: Isolatedr

Specifications of NMA0515SC

• Number Of Outputs: 2
• Output: ±15V
• Power (watts): 1W
• Mounting Type: Through Hole
• Voltage - Input: 4.5 ~ 5.5V
• Package / Case: 7-SIP Module (5 Leads)
• 1st Output: 15 VDC @ 33mA
• 2nd Output: -15 VDC @ 33mA
• Size / Dimension: 0.77" L x 0.24" W x 0.39" H (19.6mm x 6.1mm x 9.9mm)
• Power (watts) - Rated: 1W
• Operating Temperature: -40°C ~ 85°C
• Efficiency: 78%
• Approvals: UL
• Output Power: 0.5 W
• Input Voltage Range: 4.5 V to 5.5 V
• Input Voltage (nominal): 5 V
• Output Voltage (channel 1): +/- 15 V
• Output Current (channel 1): +/- 33 mA
• Output Voltage (channel 2): 15 V
• Output Current (channel 2): +/- 33 mA
• Isolation Voltage: 1 KV
• Package / Case Size: SIP
• Product: Isolated
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 4th Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 811-1453-5

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 NMA 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 NMA 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 NMA 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.
OUTPUT RIPPLE REDUCTION
www.murata-ps.com
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: Ceramic chip capacitors are recommended. It is required that the ESR (Equivalent Series Resistance) should be as low as possible, X7R 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.
Product specification for MPS inductors can be found at:
2200R Series (Through Hole)
8200 Series (SMD)
NMA0505XC
NMA0509XC
NMA0512XC
NMA0515XC
NMA1205XC
NMA1209XC
NMA1212XC
NMA1215XC
NMA1505XC
NMA1512XC
NMA1515XC
Order Code
http://www.murata-ps.com/data/magnetics/kmp_8200c.pdf
http://www.murata-ps.com/data/magnetics/kmp_2200r.pdf
L (μH)
100
150
470
150
220
220
22
22
47
Source
Power
82223C
82104C
82154C
82474C
82223C
82473C
82154C
82224C
82224C
SMD
DC
DC
Inductor Order Codes
L
NMA 5V, 12V & 15V Series
Through Hole
22R223C
22R104C
22R154C
22R474C
22R223C
22R473C
22R154C
22R224C
22R224C
Isolated 1W Dual Output DC/DC Converters
Technical enquiries - email: [e-mail], tel:
C
Load
C (μF)
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2.20
0.47
0.33
0.22
2.20
1.00
0.33
1.00
2.20
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