NMA1515SC [MURATA]
Isolated 1W Dual Output DC/DC Converters; 1W隔离双输出DC / DC转换器
| 型号： | NMA1515SC |
| 厂家： | 
muRata |
| 描述： | Isolated 1W Dual Output DC/DC Converters |
| 文件： | 总6页 (文件大小：219K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NMA 5V, 12V & 15V Series
s
Isolated 1W Dual Output DC/DC Converters
SELECTION GUIDE
Nominal
Input
Output
Voltage
Output
Current
Isolation
Capacitance
Input
Current at Efficiency
Rated Load
MTTF1
Package
Style
Order Code
Voltage
V
5
V
±5
mA
±1ꢀꢀ
±55
±±2
±33
±1ꢀꢀ
±55
±±2
±33
±1ꢀꢀ
±55
±±2
±33
±1ꢀꢀ
±55
±±2
±33
±1ꢀꢀ
±±2
±33
±1ꢀꢀ
±±2
±33
mA
289
267
26ꢀ
256
289
267
26ꢀ
256
12ꢀ
113
111
11ꢀ
12ꢀ
113
111
11ꢀ
91
%
69
75
77
78
69
75
77
78
69
7±
75
76
69
7±
75
76
71
78
8ꢀ
71
78
8ꢀ
pF
28
32
3±
36
28
32
3±
36
33
±6
55
5±
33
±6
55
5±
39
68
8±
39
68
8±
kHrs
31ꢀ3
2257
1579
1ꢀ65
31ꢀ3
2257
1579
1ꢀ65
2193
173±
13ꢀ3
932
NMA0505DC
NMA0509DC
NMA0512DC
NMA0515DC
NMA0505SC
NMA0509SC
NMA0512SC
NMA0515SC
NMA1205DC
NMA1209DC
NMA1212DC
NMA1215DC
NMA1205SC
NMA1209SC
NMA1212SC
NMA1215SC
NMA1505DC
NMA1512DC
NMA1515DC
NMA1505SC
NMA1512SC
NMA1515SC
5
±9
DIP
SIP
DIP
SIP
5
±12
±15
±5
5
5
FEATURES
ꢀRoHS compliant
5
±9
5
±12
±15
±5
5
ꢀEfficiency up to 8ꢀ%
ꢀPower density up to ꢀ.85W/cm3
12
12
12
12
12
12
12
12
15
15
15
15
15
15
±9
±12
±15
±5
ꢀWide temperature performance at full
1 Watt load, –±ꢀ°C to 85°C
2193
173±
13ꢀ3
932
ꢀDual output from a single input rail
ꢀUL 9±V-ꢀ package material
ꢀNo heatsink required
±9
±12
±15
±5
19±1
79ꢀ
±12
±15
±5
87
DIP
SIP
ꢀFootprint from 1.17cm2
ꢀIndustry standard pinout
ꢀPower sharing on output
ꢀ1kVDC isolation
8±
523
91
19±1
79ꢀ
±12
±15
87
8±
523
INPUT CHARACTERISTICS
ꢀ5V, 12V, & 15V input
Parameter
Conditions
Min.
±.5
Typ.
5
Max.
5.5
Units
V
ꢀ5V, 9V, 12V and 15V output
ꢀInternal SMD construction
Continuous operation, 5V input types
Continuous operation, 12V input types
Continuous operation, 15V input types
Voltage range
1ꢀ.8
13.5
12
15
2ꢀ
13.2
16.5
±ꢀ
ꢀFully encapsulated with toroidal
magnetics
Reflected ripple current
mA p-p
ABSOLUTE MAXIMUM RATINGS
Lead temperature 1.5mm from case for 1ꢀ seconds
Internal power dissipation
Input voltage VIN, NMAꢀ5 types
Input voltage VIN, NMA12 types
ꢀNo external components required
ꢀMTTF up to 3.1 million hours
3ꢀꢀ°C
±5ꢀmW
7V
ꢀNo electrolytic or tantalum capacitors
15V
Input voltage VIN, NMA15 types
18V
DESCRIPTION
1. Calculated using MIL-HDBK-217FN2 calculation model with nominal input voltage at full load.
All specifications typical at T =25°C, nominal input voltage and rated output current unless otherwise specified.
A
The NMA 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 dual rail supplies on
primarily digital boards with the added benefit of
galvanic isolation to reduce switching noise. All of
the rated power may be drawn from a single pin
provided the total load does not exceed 1 watt.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
KDC_NMA.G02 Page 1 of 6
NMA 5V, 12V & 15V Series
Isolated 1W Dual Output DC/DC Converters
OUTPUT CHARACTERISTICS
Parameter
Conditions
Min.
Typ.
Max.
1
Units
W
Rated Power1
TA=-±ꢀ°C to 12ꢀ°C
See tolerance envelope
High VIN to low VIN
Voltage Set Point Accuracy
Line regulation
1.ꢀ
1ꢀ
9
6.5
6
5.5
2.6
2.3
1ꢀ
7
1.2
12.5
1ꢀ
7.5
7.ꢀ
1ꢀ
3.ꢀ
3.ꢀ
2ꢀ
%/%
5V output types
9V output types
12V output types
15V output types
5V output types
12V output types
15V output types
5V & 12V input
Load Regulation
1ꢀ% load to rated load
%
15V input
BW=DC to 2ꢀMHz, 5V output types
BW=DC to 2ꢀMHz, 9V output types
BW=DC to 2ꢀMHz, 12V output types
BW=DC to 2ꢀMHz, 15V output types
15
15
15
Ripple and Noise2
mV p-p
7.5
8
ISOLATION CHARACTERISTICS
Parameter
Isolation test voltage
Resistance
Conditions
Flash tested for 1 second
Viso= 1ꢀꢀꢀVDC
Min.
1ꢀꢀꢀ
Typ.
1ꢀ
Max.
Max.
Units
VDC
GΩ
GENERAL CHARACTERISTICS
Parameter
Conditions
Min.
Typ.
11ꢀ
1±ꢀ
9ꢀ
Units
kHz
5V input types
12V input types
15V input types
Switching frequency
TEMPERATURE CHARACTERISTICS
Parameter
Specification
Storage
Conditions
All output types
Min.
-±ꢀ
Typ.
Max.
85
Units
°C
-5ꢀ
13ꢀ
ꢀ5ꢀ5, 12ꢀ5
33
28
26
17
ꢀ5ꢀ9, ꢀ512, ꢀ515, 12ꢀ9, 1212, 1215
Case Temperature above ambient
Cooling
15ꢀ5
1512, 1515
Free air convection
TEMPERATURE DERATING GRAPH
TOLERANCE ENVELOPE
1.5
+1ꢀ%
+5%
VNOM
+2.5%
85°C
1.ꢀ
-2.5%
-7.5%
ꢀ.5 Safe Operating Area
12ꢀ°C
15ꢀ
ꢀ
1ꢀꢀ
75
Output Load Current (%)
1ꢀ 25
5ꢀ
-±ꢀ
1ꢀꢀ
ꢀ
5ꢀ
Ambient Temperature (°C)
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.
1. See derating graph.
2. See Ripple & Noise characterisation method.
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KDC_NMA.G02 Page 2 of 6
NMA 5V, 12V & 15V Series
Isolated 1W 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 NMA series of DC/DC converters are all 1ꢀꢀ% 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 ±2.±V peak, or
6ꢀVDC. 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 2ꢀ% 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 COMPLIANT INFORMATION
This series is compatible with RoHS soldering systems with a peak wave solder temperature of
3ꢀꢀ°C for 1ꢀ 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 1ꢀ% of the full rated load across the specified input voltage range. Lower than 1ꢀ% 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 1ꢀμF, are shown in the table below. The product
series will start into a capacitance of ±7μF with an increased start time, however, the maximum recommended output capacitance is 1ꢀμF.
Typical Start-Up Wave Form
Start-up time
μs
Start-up time
μs
NMAꢀ5ꢀ5xC
NMAꢀ5ꢀ9xC
NMAꢀ512xC
NMAꢀ515xC
NMA12ꢀ5xC
NMA12ꢀ9xC
2ꢀ18
NMA1212xC
NMA1215xC
NMA15ꢀ5xC
NMA1512xC
NMA1515xC
9765
661ꢀ
1598ꢀ
1ꢀ6ꢀ
1±52ꢀ
2ꢀ2ꢀꢀ
1ꢀ61
1627
6275
3935
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KDC_NMA.G02 Page 3 of 6
NMA 5V, 12V & 15V Series
Isolated 1W Dual Output DC/DC Converters
APPLICATION NOTES (continued)
Ripple & Noise Characterisation Method
Ripple and noise measurements are performed with the following test configuration.
C1
C2
1μF X7R multilayer ceramic capacitor, voltage rating to be a minimum of 3 times the output voltage of the DC/DC converter
1ꢀμF 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 1ꢀꢀmꢁ at 1ꢀꢀ kHz
C3
R1
1ꢀꢀnF multilayer ceramic capacitor, general purpose
±5ꢀꢁ resistor, carbon film, ±1% tolerance
R2
5ꢀꢁ 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 1ꢀ to obtain the specified values.
Differential Mode Noise Test Schematic
DC/DC Converter
OSCILLOSCOPE
Y INPUT
R2
C1 C2 C3
R1
T1
+
+
Input
Output
SUPPLY
-
-
R LOAD
Output Ripple Reduction
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: It is required that the ESR (Equivalent Series Resistance) should be as low as possible, ceramic 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
>2ꢀMHz.
L
DC
Power
Source
Load
C
DC
Inductor
SMD
Capacitor
C, μF
L, μH
22
Through Hole
11R223C
11R1ꢀ±C
11R15±C
11R22±C
11R223C
11R±73C
11R15±C
11R22±C
11R223C
11R15±C
11R22±C
NMAꢀ5ꢀ5xC
NMAꢀ5ꢀ9xC
NMAꢀ512xC
NMAꢀ515xC
NMA12ꢀ5xC
NMA12ꢀ9xC
NMA1212xC
NMA1215xC
NMA15ꢀ5xC
NMA1512xC
NMA1515xC
82223C
821ꢀ±C
8215±C
8222±C
82223C
82±73C
8215±C
8222±C
82223C
8215±C
8222±C
2.2uF
ꢀ.±7uF
ꢀ.33uF
1uF
1ꢀꢀ
15ꢀ
22ꢀ
22
2.2uF
1uF
±7
15ꢀ
22ꢀ
22
ꢀ.33uF
1uF
2.2uF
ꢀ.33uF
2.2uF
15ꢀ
22ꢀ
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KDC_NMA.G02 Page ± of 6
NMA 5V, 12V & 15V Series
Isolated 1W Dual Output DC/DC Converters
PACKAGE SPECIFICATIONS
MECHANICAL DIMENSIONS
DIP package
PIN CONNECTIONS - 1± PIN DIP
SIP package
Pin
1
Function
-VIN
ꢀ.77 (19.5ꢀ)
ꢀ.77
(19.5ꢀ)
7
NC
8
OV
ꢀ.385
(9.8ꢀ)
ꢀ.236
(6.ꢀꢀ)
NMA0505DC
9
+VOUT
-VOUT
+VIN
XYYWWi
11
1±
ꢀ.39±
(1ꢀ.ꢀꢀ)
ꢀ.ꢀ22 (ꢀ.55)
ꢀ.ꢀ178 (ꢀ.±5)
ꢀ.268
(6.8ꢀ)
NMA0515SC
XYYWW
PIN CONNECTIONS - 7 PIN SIP
1
2
±
5
6
Pin
1
Function
+VIN
ꢀ.181 (±.6ꢀ)
ꢀ.181 (±.6ꢀ)
ꢀ.1±2 (3.6ꢀ)
ꢀ.1 (2.5±)
ꢀ.1±1 (3.6ꢀ)
ꢀ.1 (2.5±)
ꢀ.ꢀ22 (ꢀ.55)
ꢀ.ꢀ178 (ꢀ.±5)
2
-VIN
ꢀ.ꢀ22 (ꢀ.55)
ꢀ.ꢀ178 (ꢀ.±5)
ꢀ.ꢀ6ꢀ7 (1.5±38)
ꢀ.ꢀ99 (2.5162)
±
-VOUT
OV
ꢀ.ꢀ±3
(1.ꢀ9)
ꢀ.ꢀ118 (ꢀ.3ꢀ)
ꢀ.ꢀꢀ79 (ꢀ.2ꢀ)
5
1
7
8
6
+VOUT
ꢀ.ꢀ5
(1.25)
ꢀ.5 (12.7ꢀ)
ꢀ.3 (7.62)
ꢀ.ꢀ118 (ꢀ.3ꢀ)
ꢀ.ꢀꢀ79 (ꢀ.2ꢀ)
1±
11
9
ꢀ.ꢀ8±
(2.13)
ꢀ.6 (15.2±)
Weight: 2.±g (DIP) 2.1g (SIP)
All dimensions in inches ±ꢀ.ꢀ1 (mm ±ꢀ.25mm). All pins on a ꢀ.1 (2.5±) pitch and within ±ꢀ.ꢀ1 (ꢀ.25) of true position.
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KDC_NMA.G02 Page 5 of 6
NMA 5V, 12V & 15V Series
Isolated 1W Dual Output DC/DC Converters
PACKAGE SPECIFICATIONS (continued)
RECOMMENDED FOOTPRINT DETAILS
1± Pin DIP Package
7 Pin SIP Package
ꢀ.ꢀ±5 (1.15)
ꢀ.ꢀ39 (1.ꢀꢀ)
5 HOLES
ꢀ.ꢀ±5 (1.15)
Ø
Ø
ꢀ.ꢀ39 (1.ꢀꢀ)
5 HOLES
ꢀ.ꢀꢀ39± (ꢀ.1)
ꢀ.ꢀꢀ39± (ꢀ.1
ꢀ.1 (2.5±)
ꢀ.1 (2.5±)
ꢀ.1 (2.5±)
ꢀ.1 (2.5±)
TUBE OUTLINE DIMENSIONS
7 Pin SIP Tube
1± Pin DIP Tube
ꢀꢁꢍꢋꢋꢅꢆꢊꢁꢍꢀꢈꢅ
ꢀꢁꢂꢃꢄꢅꢆꢇꢄꢁꢀꢅꢈ
ꢀꢁꢇꢊꢊꢅꢆꢉꢁꢀꢃꢈ
ꢀꢁꢇꢊꢊꢅꢆꢉꢁꢀꢉꢈ
ꢀꢁꢀꢄꢋꢅꢆꢀꢁꢋꢉꢈꢅ
Unless otherwise stated all dimensions in inches (mm) ±ꢀ.5mm.
Tube length (1± Pin DIP) : 2ꢀ.±7 (52ꢀmm ±2mm).
Tube length (7 Pin SIP) : 2ꢀ.±7 (52ꢀmm ±2mm).
ꢀꢁꢄꢅꢆꢉꢁꢀꢀꢈꢅ
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.
11 Cabot Boulevard, Mansfield, MA ꢀ2ꢀ±8-1151 U.S.A.
ISO 9ꢀꢀ1 and 1±ꢀꢀ1 REGISTERED
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_NMA.G02 Page 6 of 6
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