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| 型号： | NML0515SC |
| 厂商： | Murata Power Solutions Inc |
| 文件页数： | 2/5页 |
| 文件大小： | 0K |
| 描述： | CONV DC/DC 2W 5VIN 15VOUT SIP |
| 产品培训模块： | Low Power DC/DC Converters <5W |
| 标准包装： | 35 |
| 系列： | NML |
| 类型： | 隔离 |
| 输出数： | 1 |
| 电压 - 输入（最小）： | 4.5V |
| 电压 - 输入（最大）： | 5.5V |
| Voltage - Output 1： | 15V |
| 电流 - 输出（最大）： | 133mA |
| 电源（瓦） - 制造商系列： | 2W |
| 电压 - 隔离： | 1kV（1000V） |
| 安装类型： | 通孔 |
| 封装/外壳： | 4-SIP 模块 |
| 尺寸/尺寸： | 0.55" L x 0.30" W x 0.39" H（14.0mm x 7.6mm x 9.9mm） |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 85°C |
| 效率： | 83% |
| 电源（瓦特）- 最大： | 2W |
| 产品目录页面： | 2717 (CN2011-ZH PDF) |
| 其它名称： | 811-1557-5 |
NML Series
Isolated 2W Single Output DC/DC Converters
GENERAL CHARACTERISTICS
Parameter
Switching frequency
Conditions
5V input types
12V input types
Min.
Typ.
90
90
Max.
Units
kHz
TEMPERATURE CHARACTERISTICS
Parameter
Speci?cation
Storage
Case Temperature above ambient
Conditions
All output types
5V output types
All other output types
Min.
-40
-50
Typ.
Max.
85
130
45
36
Units
°C
Cooling
Free air convection
TEMPERATURE DERATING GRAPH
TOLERANCE ENVELOPE
+10%
o d Line
3
2
85°C
+5%
V NOM
T y pic al L a
+2.5%
-2.5%
-7.5%
1
Safe Operating Area
0
-40
0 50 100
Ambient Temperature (°C)
150
10 25 50 75 100
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.
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 speci?ed time, across a component designed to provide electrical isolation, to verify the integrity of that isolation.
Murata Power Solutions NML 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 speci?c agency approvals, such as the NML 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 NML 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 speci?ed 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/support
KDC_NML.E02 Page 2 of 5
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