NTH1215MC [MURATA]
Isolated 2W Dual Output SM DC/DC Converters; 隔离2W双输出SM DC / DC转换器
| 型号： | NTH1215MC |
| 厂家： | 
muRata |
| 描述： | Isolated 2W Dual Output SM DC/DC Converters |
| 文件： | 总6页 (文件大小：232K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NTH Series
s
Isolated 2W Dual Output SM DC/DC Converters
SELECTION GUIDE
Nominal
Input
Voltage
Input
Current at
Rated Load
Output
Voltage
Output
Current
Isolation
Capacitance
Efficiency
MTTF2
Order Code1
V
5
V
5
mA
2ꢀꢀ
111
83
mA
5ꢀꢀ
494
488
476
2ꢀ8
2ꢀ1
198
198
%
8ꢀ
81
82
84
8ꢀ
83
84
84
pF
27
34
39
37
35
57
66
63
kHrs
2175
913
465
257
675
472
315
2ꢀ4
NTH0505MC
NTH0509MC
NTH0512MC
NTH0515MC
NTH1205MC
NTH1209MC
NTH1212MC
NTH1215MC
5
9
5
12
15
5
5
67
FEATURES
ꢀRoHS compliant
12
12
12
12
2ꢀꢀ
111
83
9
ꢀEfficiency up to 84%
12
15
67
ꢀWide temperature performance at full
2 Watt load, –4ꢀ°C to 85°C
INPUT CHARACTERISTICS
Parameter
Conditions
Continuous operation, 5V input types
Min.
4.5
Typ.
5
Max.
5.5
Units
V
ꢀUL 94V-ꢀ Package material
ꢀLead frame technology
ꢀ5V & 12V Input
Voltage range
Continuous operation, 12V input types
5V input types
1ꢀ.8
12
4ꢀ
3ꢀ
13.2
Reflected ripple current
mA p-p
12V input types
ꢀ5V, 9V, 12V & 15V Output
ꢀInternal SMD construction
ꢀDual isolated output
OUTPUT CHARACTERISTICS
Parameter
Rated power3
Conditions
TA=-4ꢀ°C to 85°C
Min.
Typ.
Max.
2.ꢀ
7.5
5.ꢀ
1.2
1ꢀ
Units
W
NTHXXꢀ5, 1ꢀ% to 1ꢀꢀ% load
-5.ꢀ
-5.ꢀ
ꢀ1kVDC Isolation
Voltage set point
accuracy
%
%/%
%
All other variants, 1ꢀ% to 1ꢀꢀ% load
High VIN to low VIN
ꢀMTTF up to 2.17 million hours
ꢀPower density 1.61W/cm3
ꢀNo heatsink required
Line regulation
Load regulation2
1.ꢀ
5.ꢀ
3.ꢀ
15ꢀ
1ꢀꢀ
8ꢀ
1ꢀ% load to rated load, 5V output types
1ꢀ% load to rated load, all other output types
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
1ꢀ
2ꢀꢀ
15ꢀ
15ꢀ
15ꢀ
ꢀCustom solutions available
ꢀMulti layer ceramic capacitors
Ripple & noise
mV p-p
7ꢀ
DESCRIPTION
ISOLATION CHARACTERISTICS
Parameter
Conditions
Min.
1ꢀꢀꢀ
1
Typ.
1ꢀ
Max.
Max.
Units
VDC
GΩ
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 191-6:199ꢀ.
The devices are suitable for all applications
where high volume production is envisaged.
Isolation test voltage
Resistance
Flash tested for 1 second
Viso= 5ꢀꢀVDC
GENERAL CHARACTERISTICS
Parameter
Conditions
Min.
Typ.
95
9ꢀ
Units
kHz
All 5V input types
All 12V input types
Switching frequency
ABSOLUTE MAXIMUM RATINGS
Lead temperature 1.5mm from case for 1ꢀ seconds
Internal power dissipation
3ꢀꢀ°C
55ꢀmW
7V
Input voltage VIN, NTHꢀ5 types
Input voltage VIN, NTH12 types
15V
1. If components are required in tape and reel format suffix order code code with -R, e.g. NTHꢀ5ꢀ5MC-R.
2. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
3. See derating graph.
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com/support
KDC_NTH.C02 Page 1 of 6
NTH Series
Isolated 2W Dual Output SM DC/DC Converters
TEMPERATURE CHARACTERISTICS
Parameter
Specification
Storage
Conditions
All output types
Min.
-4ꢀ
Typ.
Max.
85
Units
°C
-55
125
5V output types
3ꢀ
25
Case temperature rise above
ambient
All other output types
Free air convection
Cooling
TOLERANCE ENVELOPE
5V output types
+7.5%
All other output types
+5%
+1.5%
-2.ꢀ%
+3.75%
ꢀ%
+2.5%
+2.ꢀ%
-1.5%
-5.ꢀ%
-1.25%
-5.ꢀ%
75
Output Load Current (%)
1ꢀꢀ
75
1ꢀꢀ
1ꢀ 25
5ꢀ
1ꢀ 25
5ꢀ
Output Load Current (%)
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.
RoHS COMPLIANCE INFORMATION
TEMPERATURE DERATING GRAPH
3.ꢀ
This series is compatible with RoHS soldering
systems with a peak reflow solder temperature
of 245ºC and time above liquidus of 217ºC
for 6ꢀ seconds. The pin termination finish on
this product series is Gold, plating thickness
ꢀ.1 microns minimum. The series is backward
compatible with Sn/Pb soldering systems.
85°C
2.ꢀ
1.ꢀ Safe Operating Area
ꢀ
-4ꢀ
1ꢀꢀ
Ambient Temperature (°C)
15ꢀ
ꢀ
5ꢀ
For further information, please visit www.murata-ps.com/rohs
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 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 NTH 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 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 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.
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KDC_NTH.C02 Page 2 of 6
NTH Series
Isolated 2W Dual Output SM DC/DC Converters
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 47μF with an increased start time, however, the maximum recommended output capacitance is 1ꢀμF.
Typical Start-Up Wave Form
Start-up time
μs
NTHꢀ5ꢀ5MC
NTHꢀ5ꢀ9MC
NTHꢀ512MC
NTHꢀ515MC
NTH12ꢀ5MC
NTH12ꢀ9MC
NTH1212MC
NTH1215MC
1ꢀ26
3625
575ꢀ
833ꢀ
691
2645
3285
612ꢀ
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
45ꢀꢁ 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
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KDC_NTH.C02 Page 3 of 6
NTH Series
Isolated 2W Dual Output SM DC/DC Converters
APPLICATION NOTES (continued)
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
L, μH
1ꢀ
Through Hole
11R1ꢀ3C
11R223C
11R473C
11R474C
11R1ꢀ3C
11R223C
11R473C
11R474C
C, μF
4.7
2.2
1
NTHꢀ5ꢀ5MC
NTHꢀ5ꢀ9MC
NTHꢀ512MC
NTHꢀ515MC
NTH12ꢀ5MC
NTH12ꢀ9MC
NTH1212MC
NTH1215MC
821ꢀ3C
82223C
82473C
82474C
821ꢀ3C
82223C
82473C
82474C
22
47
22ꢀ
1ꢀ
ꢀ.22
4.7
2.2
1
22
47
22ꢀ
ꢀ.22
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KDC_NTH.C02 Page 4 of 6
NTH Series
Isolated 2W Dual Output SM DC/DC Converters
PACKAGE SPECIFICATIONS
MECHANICAL DIMENSIONS
PIN CONNECTIONS
ꢀ.7ꢀꢀ (17.78)
ꢀ.6ꢀꢀ (15.24)
Pin
1
Function
-VIN
26 24 22
18 16
14
3
+VIN
NA
DETAIL A
5
9
-VOUT
OV
REFERENCE PLANE
5.ꢀ°
11
13
14
16
18
22
24
26
+VOUT
NA
ꢀ.ꢀ2ꢀ (ꢀ.5ꢀ)
NTH0505MC
x12 PINS
ꢀ.ꢀ416-ꢀ.ꢀ534 (1.ꢀ565-1.3565)
XYYWW
NA
ꢀ.ꢀꢀ8 (ꢀ.2)
S
-VOUT
NC
NA
NA
1
3
5
9
11 13
12 PINS
ꢀ.ꢀ29 (ꢀ.74) ꢀ.ꢀ25 (ꢀ.64)
ꢀ.ꢀꢀ8 (ꢀ.2)
ꢀ.1ꢀꢀ (2.54)
S
ꢀ.226 (5.75) ꢀ.2ꢀ7 (5.25)
2.74 (ꢀ.1ꢀ8) MAX
NA - Not available for electrical connection.
NC - No internal electrical connection.-
DETAIL A
ꢀ.1ꢀ8 (2.75)
5.35 (ꢀ.236)
6.ꢀꢀ (ꢀ.211)
S
SEATING PLANE
x12 PINS
ꢀ.ꢀꢀ4 (ꢀ.1)
S
ꢀ.ꢀ12 (ꢀ.3ꢀ)
ꢀ.ꢀꢀ8 (ꢀ.2ꢀ)
ꢀ.ꢀ6 (1.52) MAX
ꢀ.ꢀ1ꢀ (ꢀ.25)
ꢀ.ꢀꢀ4 (ꢀ.1ꢀ)
All dimensions in inches ꢀ.ꢀ1 (mm ꢀ.25mm). All pins on a ꢀ.1 (2.54) pitch.
Weight: 2.75g
RECOMMENDED FOOTPRINT DETAILS
TUBE OUTLINE DIMENSIONS
ꢀꢁꢂꢀꢀꢃꢄꢅꢆꢁꢇꢈꢉ
ꢎꢀꢁꢍꢀ
ꢎꢀꢁꢀꢌꢅ
ꢀꢁꢇꢇꢍꢃꢃꢃꢃꢃꢃꢃꢃꢃꢃ ꢄꢆꢁꢍꢀꢃꢃꢃꢃꢃꢃꢃꢃꢃꢃꢉ
ꢏꢀꢁꢀꢇꢈ
ꢏꢀꢁꢂꢀ
ꢀꢁꢀꢊꢋꢃꢄꢇꢁꢀꢀꢉ
ꢀꢁꢂꢆꢀꢃꢄꢅꢂꢁꢆꢀꢉ
ꢎꢀꢁꢀꢀꢂ
ꢀꢁꢀꢋꢅꢃꢃꢃꢃꢃꢃꢃꢃꢃꢃꢃꢃꢃꢃꢃꢄꢇꢁꢌꢀꢃꢃꢃꢃꢃꢃꢃꢃꢃꢃꢃꢉ
ꢎꢀꢁꢅꢆ
ꢏꢀꢁꢀꢅꢀ
ꢏꢀꢁꢇꢆ
ꢃꢀꢁꢅꢀꢀꢃꢄꢇꢁꢆꢈꢉ
ꢃꢀꢁꢀꢌꢋꢃꢄꢅꢁꢀꢀꢉꢃ.*/
All dimensions in inches ꢀ.ꢀ2 (mm ꢀ.5).
Tube length : 18.7ꢀ ꢀ.ꢀ79 (475 2.ꢀ).
All dimensions in inches ꢀ.ꢀ2 (mm ꢀ.5)
Tube Quantity : 25
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KDC_NTH.C02 Page 5 of 6
NTH Series
Isolated 2W Dual Output SM DC/DC Converters
TAPE & REEL SPECIFICATIONS
REEL OUTLINE DIMENSIONS
TAPE OUTLINE DIMENSIONS
ꢅꢇꢁꢋꢋ
ꢄꢌꢌꢀꢉꢃ."9
COVER TAPE
ꢀ.ꢀ24 (ꢀ.6ꢀ) MAX
ꢀ.722 (18.33)
ꢌꢁꢋꢈ
ꢄꢅꢀꢀꢉꢃ.*/
ꢀꢁꢆꢌꢅꢃꢄꢅꢌꢁꢆꢀꢉ
ꢀꢁꢆꢀꢈꢃꢄꢅꢇꢁꢍꢀꢉ
NTH0505MC
XYYWW
ꢀ.559 (14.2ꢀ)
1.118 (28.4ꢀ)
1.26ꢀ ꢀ.ꢀ12 (32.ꢀꢀ ꢀ.3ꢀ)
All dimensions in inches ꢀ.ꢀ2 (mm ꢀ.5)
All dimensions in inches ꢀ.ꢀ2 (mm ꢀ.5)
REEL PACKAGING DETAILS
CARRIER TAPE START
3.94 (1ꢀꢀ) MIN
TRAILER SECTION
6.3ꢀ (16ꢀ) MIN
GOODS ENCLOSURE
SECTION
LEADER SECTION
15.75 (4ꢀꢀ) MIN
All dimensions in inches ꢀ.ꢀ2 (mm ꢀ.5)
Reel Quantity : 4ꢀꢀ
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 ꢀ2ꢀ48-1151 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.
© 2012 Murata Power Solutions, Inc.
www.murata-ps.com/support
KDC_NTH.C02 Page 6 of 6
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