NMA2415DC [MURATA]
民用设备,工业设备;
| 型号： | NMA2415DC |
| 厂家： | 
muRata |
| 描述： | 民用设备,工业设备 输出元件 电源电路 |
| 文件： | 总4页 (文件大小：126K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NM24V & 48V Series
s
Isolated 1W Dual Output DC/DC Converters
SELECTION GUIDE
Nominal
Output
Input
Voltage
Recommended
Alternatives
(click for
Output
Current
Isolation
Capacitance
Efficiency
%
MTTF1
kHrs
Package
Style
Voltage
V
Order Code
data sheet)
V
mA
pF
Not recommended for new designs:
NMA2405SC
NMA2409SC
NMA2412SC
NMA2415SC
24
24
24
24
±±
±9
±1ꢀꢀ
±±±
±42
±33
7ꢀ
77
39
8±
6±
9±
194
129
134
1ꢀ1
MEA1D2405SC
MEA1D2409SC
MEA1D2412SC
MEA1D2415SC
SIP
±12
±1±
8ꢀ
FEATURES
ꢀRoHS compliant
8ꢀ
Obsolete:
7ꢀ
NMA2405DC
NMA2409DC
NMA2412DC
NMA2415DC
NMA4805DC
NMA4809DC
NMA4812DC
NMA4815DC
NMA4805SC
NMA4809SC
NMA4812SC
NMA4815SC
24
24
24
24
48
48
48
48
48
48
48
48
±±
±9
±1ꢀꢀ
±±±
±42
±33
±1ꢀꢀ
±±±
±42
±33
±1ꢀꢀ
±±±
±42
±33
39
8±
6±
9±
26
38
±2
±6
26
38
±2
±6
194
129
134
1ꢀ1
2ꢀ6
174
139
1ꢀ4
2ꢀ6
174
139
1ꢀ4
MEA1D2405DC
MEA1D2409DC
MEA1D2412DC
MEA1D2415DC
MEA1D4805DC
MEA1D4809DC
MEA1D4812DC
MEA1D4815DC
MEA1D4805SC
MEA1D4809SC
MEA1D4812SC
MEA1D4815SC
ꢀEfficiency up to 8ꢀ%
ꢀPower density up to ꢀ.8±W/cm3
ꢀDual output from a single input rail
ꢀUL 94V-ꢀ package material
ꢀNo heatsink required
ꢀFootprint from 1.17cm2
ꢀIndustry standard pinout
ꢀPower sharing on output
ꢀ1kVDC isolation
77
±12
±1±
±±
8ꢀ
8ꢀ
DIP
SIP
7ꢀ
±9
8ꢀ
±12
±1±
±±
8ꢀ
8ꢀ
7ꢀ
±9
8ꢀ
±12
±1±
8ꢀ
8ꢀ
When operated with additional external load capacitance the rise time of the input voltage will determine the maximum external
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.
ꢀ24V & 48V input
ꢀ±V, 9V, 12V and 1±V output
ꢀInternal SMD construction
INPUT CHARACTERISTICS
Parameter
Conditions
Min.
21.6
43.2
Typ.
24
Max.
26.4
±2.8
Units
V
Continuous operation, 24V input types
Continuous operation, 48V input types
Voltage range
ꢀFully encapsulated with toroidal
magnetics
48
OUTPUT CHARACTERISTICS
ꢀNo external components required
Parameter
Rated Power2
Conditions
TA=ꢀ°C to 7ꢀ°C
Min.
Typ.
Max.
1
Units
W
DESCRIPTION
Voltage Set Point Accuracy See tolerance envelope
The NMA series of DC/DC converters are the
standard buliding blocks for on-board distrib-
uted 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.
Line regulation
Load Regulation
Ripple and Noise
High VIN to low VIN
1.2
1±
%/%
%
1ꢀ% load to rated load, ±V output types
1ꢀ% load to rated load, all other output types
BW=DC to 2ꢀMHz, all input types
1ꢀ
1±ꢀ
mV p-p
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection3
1 second
3ꢀꢀ°C
4±ꢀmW
28V
Lead temperature 1.±mm from case for 1ꢀ seconds
Internal power dissipation
Input voltage VIN, NMA24 types
Input voltage VIN, NMA48 types
±4V
1. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
2. See derating graph.
3. Supply voltage must be discontinued at the end of the short circuit duration.
All specifications typical at T =2±°C, nominal input voltage and rated output current unless otherwise specified.
A
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
All enquiries: www.murata-ps.com/support
KDC_NMAC2.G01 Page 1 of 4
NMA 24V & 48V Series
Isolated 1W Dual Output DC/DC Converters
ISOLATION CHARACTERISTICS
Parameter
Isolation test voltage
Resistance
Conditions
Flash tested for 1 second
Viso= ±ꢀꢀVDC
Min.
1ꢀꢀꢀ
1ꢀ
Typ.
Max.
Units
VDC
GΩ
GENERAL CHARACTERISTICS
Parameter
Switching frequency
Conditions
All input types
Min.
Typ.
1ꢀꢀ
Max.
Units
kHz
TEMPERATURE CHARACTERISTICS
Parameter
Specification
Storage
Conditions
All output types
Min.
ꢀ
Typ.
Max.
7ꢀ
Units
°C
-±±
1±ꢀ
Cooling
Free air convection
TEMPERATURE DERATING GRAPH
TOLERANCE ENVELOPE
1.±
+1ꢀ%
+±%
VNOM
7ꢀ°C
+2.±%
1.ꢀ
-2.±%
-7.±%
ꢀ.± Safe Operating Area
ꢀ
12±ºC
1±ꢀ
1ꢀꢀ
ꢀ
±ꢀ
1ꢀꢀ
7±
1ꢀ 2±
±ꢀ
Ambient Temperature (ºC)
Output Load Current (%)
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 42.4V 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.
www.murata-ps.com
All enquiries: www.murata-ps.com/support
KDC_NMAC2.G01 Page 2 of 4
NMA 24V & 48V Series
Isolated 1W Dual Output DC/DC Converters
PACKAGE SPECIFICATIONS
MECHANICAL DIMENSIONS
DIP package
PIN CONNECTIONS - 14 PIN DIP
SIP package
ꢀ.77 (19.±ꢀ)
Pin
1
Function
-VIN
ꢀ.77
(19.±ꢀ)
7
NC
ꢀ.38±
(9.8ꢀ)
8
OV
ꢀ.236
NMA2405DC
(6.ꢀꢀ)**
9
+VOUT
-VOUT
+VIN
XYYWWi
11
14
ꢀ.394
(1ꢀ.ꢀꢀ)
NMA2405SC
ꢀ.ꢀ22 (ꢀ.±±)
ꢀ.ꢀ178 (ꢀ.4±)
ꢀ.268
(6.8ꢀ)*
XYYWWi
PIN CONNECTIONS - 7 PIN SIP
1
2
4
±
6
ꢀ.181 (4.6ꢀ)
ꢀ.141 (3.6ꢀ)
ꢀ.181 (4.6ꢀ)
ꢀ.142 (3.6ꢀ)
Pin
1
Function
+VIN
ꢀ.1 (2.±4)
ꢀ.1 (2.±4)
ꢀ.ꢀ22 (ꢀ.±±)
ꢀ.22 (ꢀ.±±)
ꢀ.ꢀ178 (ꢀ.4±)
ꢀ.ꢀ178 (ꢀ.4±)
ꢀ.ꢀ79
(2.ꢀꢀ)
2
-VIN
ꢀ.ꢀ43
(1.ꢀ9)
4
-VOUT
OV
ꢀ.ꢀ118 (ꢀ.3ꢀ)
ꢀ.ꢀꢀ79 (ꢀ.2ꢀ)
±
1
7
8
6
+VOUT
ꢀ.ꢀ±
(1.2±)
ꢀ.± (12.7ꢀ)
ꢀ.3 (7.62)
ꢀ.ꢀ118 (ꢀ.3ꢀ)
ꢀ.ꢀꢀ79 (ꢀ.2ꢀ)
14
11
9
Weight:
ꢀ.ꢀ84
(2.13)
ꢀ.6 (1±.24)
2.4g (24V DIP)
2.9g (48V DIP)
2.2g (24V SIP)
2.9g (48V SIP)
*
ꢀ.3ꢀ3 (7.7ꢀ) for 48V variants
** ꢀ.29± (7.±ꢀ) for 48V variants
All dimensions in inches ±ꢀ.ꢀ1 (mm ±ꢀ.2±mm). All pins on a ꢀ.1 (2.±4) pitch and within ±ꢀ.ꢀ1 (ꢀ.2±) of true position.
RoHS COMPLIANCE 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
www.murata-ps.com
All enquiries: www.murata-ps.com/support
KDC_NMAC2.G01 Page 3 of 4
NMA 24V & 48V Series
Isolated 1W Dual Output DC/DC Converters
PACKAGE SPECIFICATIONS (continued)
RECOMMENDED FOOTPRINT DETAILS
14 Pin DIP Package
7 Pin SIP Package
ꢀ.ꢀ4± (1.1±)
ꢀ.ꢀ39 (1.ꢀꢀ)
± HOLES
ꢀ.ꢀ4± (1.1±)
Ø
Ø
ꢀ.ꢀ39 (1.ꢀꢀ)
± HOLES
ꢀ.ꢀꢀ394 (ꢀ.1)
ꢀ.ꢀꢀ394 (ꢀ.1
ꢀ.1 (2.±4)
ꢀ.1 (2.±4)
ꢀ.1 (2.±4)
ꢀ.1 (2.±4)
TUBE OUTLINE DIMENSIONS
7 Pin SIP Tube
14 Pin DIP Tube
ꢀꢁꢍꢊꢊꢅꢆꢋꢁꢍꢀꢈꢅ
ꢀꢁꢂꢃꢄꢅꢆꢇꢄꢁꢀꢅꢈ
ꢀꢁꢇꢋꢋꢅꢆꢉꢁꢀꢃꢈ
ꢀꢁꢄꢅꢆꢉꢁꢇꢀꢈ
ꢀꢁꢀꢄꢊꢅꢆꢀꢁꢊꢉꢈꢅ
Unless otherwise stated all dimensions in inches (mm) ±ꢀ.±mm.
Tube length (14 Pin DIP) : 2ꢀ.47 (±2ꢀmm ±2mm).
Tube length (7 Pin SIP) : 2ꢀ.47 (±2ꢀmm ±2mm).
ꢀꢁꢄꢅꢆꢉꢁꢀꢀꢈꢅ
Tube Quantity : 2±
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA ꢀ2ꢀ48-11±1 U.S.A.
ISO 9ꢀꢀ1 and 14ꢀꢀ1 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.
© 2011 Murata Power Solutions, Inc.
www.murata-ps.com/locations
All enquiries: www.murata-ps.com/support
KDC_NMAC2.G01 Page 4 of 4
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