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MSS-MLL PDF预览

MSS-MLL

更新时间: 2024-11-03 19:42:51
品牌 Logo 应用领域
CRANE /
页数 文件大小 规格书
6页 284K
描述
Analog Circuit,

MSS-MLL 技术参数

生命周期:Contact Manufacturer包装说明:,
Reach Compliance Code:compliantECCN代码:EAR99
风险等级:5.77模拟集成电路 - 其他类型:DC-DC REGULATED POWER SUPPLY MODULE
最大输入电压:75 V最小输入电压:16 V
标称输入电压:28 VJESD-30 代码:R-XUFM-P11
功能数量:1输出次数:1
端子数量:11最高工作温度:100 °C
最低工作温度:-55 °C最大输出电压:6 V
最小输出电压:2.5 V标称输出电压:5 V
封装主体材料:UNSPECIFIED封装形状:RECTANGULAR
封装形式:FLANGE MOUNT认证状态:Not Qualified
表面贴装:NO技术:HYBRID
温度等级:OTHER端子形式:PIN/PEG
端子位置:UPPER最大总功率输出:125 W
微调/可调输出:YESBase Number Matches:1

MSS-MLL 数据手册

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MSS SERIES  
125 WATT  
P
RELIMINARY  
D
ATASHEET FOR  
B
ETA RODUCTS  
P
DC/DC CONVERTERS 120/270 OR 28/48 VOLT  
FEATURES  
INPUT  
• Internal EMI filter meets  
MIL-STD-461E CE102  
• Wide VDC input ranges  
80 to 400 and 16 to 75  
• Operating temp. (baseplate)  
100% power –55°C to +100°C  
Derate to 0% power at 130°C  
• Trimmable Vout  
2.5 to 6 or 6 to 18 Vout  
• Sync, inhibit and  
remote sense functions  
• Magnetic feedback  
• Up to 88% efficiency  
Size (typ.): 4.60 x 2.40 x 0.45 inches  
(116.8 x 61.0 x 11.4 mm)  
MODELS  
MODEL  
V IN  
V OUT  
2.5 to 6  
6 to 18  
2.5 to 6  
6 to 18  
Weight:  
200 grams maximum  
MSS-MHL 80 to 400  
MSS-MHH 80 to 400  
• Indefinite short circuit protection  
MSS-MLL  
MSS-MLH  
16 to 75  
16 to 75  
DESCRIPTION  
Interpoint’s 125 watt MSS-MHL DC/DC converter is the first model  
in a new series of high reliability DC/DC converters. A built in EMI  
filter compliant to MIL-STD-461E, CE102, and an output filter elimi-  
nate the need for additional modules or components. With an 80 to  
400 VDC input, a 2.5 to 6 VDC output, and a wide operating temper-  
ature range of –55° to +100°C, the MSS-MHL is well suited for aero-  
space, automotive, commercial, and industrial applications. The  
trimmable output can provide 5 VDC for current or older applications  
while the same device can later be trimmed to 3 or 2.5 VDC to  
accommodate newer voltage requirements. Typical efficiency  
ranges from 78% to 85%. Two screening levels are available “R “  
and “ER” offering varying levels of temp cycle, burn-in, and electrical  
test. The converters are qualified for up to 60 Gs shock, and up to  
10 Gs vibration. Please see Table 1 for screening information and  
Table 2 for qualification information.  
OPERATION  
In order to achieve the wide 5 to 1 input voltage range (80 to 400  
VDC), and up to 12 V output voltage trim capability (6 to 18 VDC),  
the MSS Series DC/DC converters use a new current mode  
controlled boost/forward voltage regulator operating at a fixed  
frequency of 500 khz. This design uses current mode programming  
which provides excellent line rejection performance and pulse-by-  
pulse current limiting. A high performance feedback transformer is  
used for isolation and also supplies secondary Vcc.  
SYNC, INHIBIT, AND REMOTE SENSE  
Sync in, sync out, inhibit, and remote sense are additional controls  
to enhance converter performance. Sync in, sync out, and inhibit are  
referenced to control return (Ctrl Rtn, pin 7). The converters can be  
synchronized to an external clock using the sync in terminal (pin 9).  
Two or more converters can be synchronized by using the sync out  
terminal (pin 6) which helps reduce interference and the possible  
generation of beat frequencies. The sync terminals can be left  
unconnected when not used.  
The MSS Series™ converters offer three power levels, two input  
voltage levels, and two output voltage levels. Power level choices  
are medium (125W), high (250W), and low (40W). To minimize  
package size each power level has its own package. The high input  
voltage option of 80 to 400 VDC encompasses 120 volt and 270 volt  
busses. The low input voltage option of 16 to 75 VDC covers 28 volt  
and 48 volt busses. The two output voltage choices of 2.5 to 6 and  
6 to 18 cover the newer low voltage requirements, the standard 5  
volt requirements, plus the 12 and 15 volt requirements of distrib-  
uted power.  
The converter operates normally when the Inhibit terminal (pin 8) is  
left open or connected to an open collector interface. Pulling the  
inhibit low disables switching and results in no output and a low 5  
mA input current.  
The remote sense terminals (pins 3 and 4) can be connected at the  
load to minimize line voltage drops, maintaining the desired output  
voltage directly at the load. If not used, the sense terminals should  
be connected to their respective Vout terminals (pins 1 and 2).  
INPUT AND OUTPUT FILTERING: LOW NOISE  
All converters have an integrated input EMI filter and output filter.  
The MSS 125 watt series, in a package 4.6 x 2.5 x 0.45 inches  
(116.8 x 61.0 x 11.43 mm), replaces an industry standard configura-  
tion of three half bricks (input filter, converter, and output filter). The  
EMI filter meets the conducted emission requirements of MIL-STD-  
CONVERTER CONSTRUCTION/PACKAGING  
MSS Series converters are constructed from surface mount compo-  
nents soldered to a printed circuit board. The PCB is attached to a  
lightweight, metal matrix composite, baseplate which provides the  
high thermal conductivity of aluminum but has the advantage of a  
low Coefficient of Thermal Expansion (CTE) and higher strength. A  
potting compound is used to enhance the assembly’s ability to meet  
harsh environmental requirements.  
461E, CE102. The output filter keeps the output ripple to  
maximum of 75 mV peak-to-peak over the range of 10 kHz to 20  
MHz.  
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