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MFW2815T

更新时间： 2024-11-25 18:53:23
品牌 Logo 应用领域
CRANE 输出元件
页数 文件大小 规格书
7页 458K
描述
3-OUTPUT 60W DC-DC REG PWR SUPPLY MODULE, HERMETIC SEALED PACKAGE-10

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MFW2815T 技术参数

生命周期：Not Recommended包装说明：,
Reach Compliance Code：compliantECCN代码：EAR99
风险等级：5.74其他特性：ADDITIONAL +/-15V OUTPUTS AVAILABLE
模拟集成电路 - 其他类型：DC-DC REGULATED POWER SUPPLY MODULE效率（主输出）：84%
最大输入电压：40 V最小输入电压：19 V
标称输入电压：28 VJESD-30 代码：R-CXMA-P10
JESD-609代码：e3最大电网调整率：0.095%
最大负载调整率：0.4%功能数量：1
输出次数：3端子数量：10
最高工作温度：85 °C最低工作温度：-40 °C
最大输出电压：5.05 V最小输出电压：4.9 V
标称输出电压：5 V封装主体材料：CERAMIC, METAL-SEALED COFIRED
封装形状：RECTANGULAR封装形式：MICROELECTRONIC ASSEMBLY
保护：CURRENT认证状态：Not Qualified
表面贴装：NO技术：HYBRID
温度等级：INDUSTRIAL端子面层：TIN
端子形式：PIN/PEG端子位置：UNSPECIFIED
最大总功率输出：60 W微调/可调输出：NO
Base Number Matches：1

MFW2815T 数据手册

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mfw SerieS  
70 watt  
DC/DC Converters  
28 volt Input  
NOT RECOMMENDED FOR NEW DESIGNS  
Features  
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–55°C to + 85°C operation  
19 to 40 VꢁC input  
MꢀꢁELS  
VDC Output  
Fully Isolated  
single  
Dual  
±12  
±15  
tRiple  
+5 & ±12  
+5 & ±15  
ꢀptocoupler feedback  
Fixed frequency, 245 kHz typical  
Topology – Push-Pull Forward  
5
12  
15  
50 V for up to 50 ms transient protection  
Inhibit/sync function  
Size (max.): 3.20 x 2.46 x 0.595 inches (81.3 x 62.5 x 15.11 mm)  
See case L for dimensions.  
Indefinite short circuit protection  
Remote sense on single models  
Up to 84% efficiency  
Weight:  
140 grams typical  
Screening: Standard or ES. See “85°C Non-QML Products–Environmental  
Screening (Standard & ES)“ screening table for more information.  
description  
The MFW Series™ of ꢁC/ꢁC converters offers up to 70 watts of  
power from single, dual, or triple outputs in one package. Using hybrid  
thick film technology a power density of over 20 watts per cubic inch  
is achieved. These devices are packaged in hermetically sealed cold  
rolled steel enclosures with a tin plate finish making them ideal for use  
in military, aerospace, or other high reliability applications. Unscreened  
models are guaranteed to pass a gross leak test (maximum leak rate  
of 0.001 atm-cc/sec). Environmentally screened units (designated  
by the /ES suffix) are hermetically solder sealed. See Section C2 for  
screening specifications.  
wiDe VOltage Range  
All models of the MFW Series are designed to provide full power  
operation over an input voltage range of 19 to 40 VꢁC. ꢀperation  
below an input of 19 volts, including operation in MIL-STꢁ-704E emer-  
gency power conditions, is possible with derated output power. Please  
refer to the derating information and the low voltage drop-out graphs  
(Figures 10 and 11) on the following pages.  
wiDe teMpeRatuRe Range  
Full load operation of any of the MFW Series converters is available  
at case temperatures of –55°C to + 85°C. ꢀperation up to +125°C is  
possible with derated output power. The MFW Series converters are  
provided in a flange mount case designed to facilitate the removal of  
internally generated heat. Because of this, heat sinking requirements  
are minimal. Sustained full power operation does however require that  
an efficient heat sink be attached to the baseplate. Please refer to the  
heat sink requirements section for more information.  
Design MethODOlOgy  
The MFW Series converters utilize a quasi-square wave forward  
converter design with a nominal switching frequency of 245 kHz.  
Isolation between input and output is provided with a transformer in the  
forward power loop and a wideband, temperature insensitive optical  
link in the feedback control loop. ꢀutput regulation is accomplished  
with constant frequency pulse width modulation. In addition, the load  
regulation of the single output models is further enhanced through  
the use of remote output voltage sense pins to overcome the adverse  
effects of line resistance voltage drops. Short circuit protection is  
provided by detecting peak primary switching current on a cycle by  
cycle basis and limiting it to approximately 130% of the full load input  
current. This method results in quick and positive current limiting under  
short circuit conditions.  
inhibit/synC FeatuRe  
Standard on all models of the MFW Series is a dual mode inhibit/sync  
pin. This pin serves as both an output inhibit and as a synchronization  
input. In the inhibit mode an open collector TTL compatible low (<0.8  
V) will disable internal switching thereby inhibiting the unit’s output.  
Inhibiting in this manner results in an extremely low quiescent current.  
Since a pull-up resistor is included internally, this pin may be left open  
should the inhibit function not be desired.  
lOw nOise  
The MFW Series converters offer low noise on both the input and  
output lines. A two section, four pole LC input filter is included to  
provide very low reflected line ripple current. Adherence to MIL-STꢁ-  
461C (CE03) is possible with the addition of the FMB-461 filter. ꢀutput  
ripple is maintained at less than 50 mV p-p for single and dual output  
models and 85 mV for triple output models.  
In a digital system it is often desirable to synchronize the input or  
output ripple with the system clock. For this reason each model of the  
MFW Series was designed to synchronize with a system clock applied  
to the inhibit/sync pin. Please refer to the technical data section for  
timing details for the external sync feature.  
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