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LT1240-7DFB1

更新时间： 2024-11-22 14:43:15
品牌 Logo 应用领域
BEL /
页数 文件大小 规格书
33页 838K
描述
AC-DC Regulated Power Supply Module, 1 Output, 400W, CASE T01, MODULE

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LT1240-7DFB1 技术参数

是否Rohs认证：不符合生命周期：Obsolete
零件包装代码：MODULE包装说明：,
Reach Compliance Code：compliantECCN代码：EAR99
风险等级：5.79Is Samacsys：N
模拟集成电路 - 其他类型：AC-DC REGULATED POWER SUPPLY MODULE最大输入电压：255 V
最小输入电压：85 VJESD-30 代码：R-XXMA-X
JESD-609代码：e0功能数量：1
输出次数：1最高工作温度：71 °C
最低工作温度：-25 °C最大输出电压：28.25 V
最小输出电压：25.25 V标称输出电压：27.25 V
封装主体材料：UNSPECIFIED封装形状：RECTANGULAR
封装形式：MICROELECTRONIC ASSEMBLY峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：Not Qualified表面贴装：NO
温度等级：COMMERCIAL EXTENDED端子面层：TIN LEAD
端子形式：UNSPECIFIED端子位置：UNSPECIFIED
处于峰值回流温度下的最长时间：NOT SPECIFIED最大总功率输出：400 W
微调/可调输出：YESBase Number Matches：1

LT1240-7DFB1 数据手册

 浏览型号LT1240-7DFB1的Datasheet PDF文件第2页浏览型号LT1240-7DFB1的Datasheet PDF文件第3页浏览型号LT1240-7DFB1的Datasheet PDF文件第4页浏览型号LT1240-7DFB1的Datasheet PDF文件第5页浏览型号LT1240-7DFB1的Datasheet PDF文件第6页浏览型号LT1240-7DFB1的Datasheet PDF文件第7页 
Rugged Environment  
AC-DC Converters >100Watt  
T Series  
500 Watt AC-DC Converters  
T Series  
Input to output isolation  
Single output  
• Universal AC input range  
• DC output voltage for 24 and 48 V loads  
• Battery charging for 24, 36, 48 V batteries with re-  
mote temperature control  
• Telecom rectifier applications  
• Immune to transients and disturbances according to  
VDE 160 and IEC/EN 61000-4-2,-3,-4,-5,-6  
• 4000 V AC input to output electric strength test  
• Very high efficiency, typically 93%  
• Power factor >0.96, harmonics <IEC/EN 61000-3-2,  
low RFI  
• No inrush current, hot plug-in capability  
• High power density, 210 W/dm3, rugged mechanical  
design  
• Very compact 19" cassette (28 TE, 3 U, 160 mm),  
111  
4.4"  
3 U  
Safety according to IEC/EN 60950  
LGA  
141  
5.6"  
168  
28 TE  
6.6"  
C
Summary  
The latter types can be integrated into systems where the  
output voltage is backed-up by batteries. The float charge  
of the battery can be set by a cell voltage selector switch  
according to the battery type used. Moreover these units  
feature a temperature sensor input to improve the life ex-  
pectancy of the battery.  
The T series of converters are electrically isolated AC-DC  
converters with an output power of up to 550 W. For higher  
power requirements several units may be connected in  
parallel.  
The input of the T units is ideally adapted to the mains: Full  
power factor correction, no inrush current, low RFI level and  
high transient and surge immunity are key design features.  
The T units behave similar to a resistive load.  
The rectifier types suit for DC-bus applications at constant  
voltage. As the output voltage is SELV, even electrically non  
isolated switching regulators such as the Melcher PSR  
types may be connected to the T output.  
The L-input provides a universal AC-input range from  
85...255 V AC. It is the preferred type for 230 V mains,  
whereas the U-input range is optimized for 110/120 V  
mains. The output delivers an electrically isolated Safety  
Extra Low Voltage (SELV) and is short-circuit and no-load  
proof. Depending on the type, two output characteristics  
are available, intended either for rectifier applications or for  
battery charging purposes.  
The T 1701 types are especially optimized to build distrib-  
uted power systems together with the Melcher CQ-series  
DC-DC converters as the signalling capabilities of both  
families are matched. Distributed power systems have as  
one advantage less power loss over load lines and fewer  
regulation problems.  
Melcher offers also backplanes for fast and simple set-up of  
19" rack systems with T units (see chapter: Back Planes).  
Page  
Table of Contents  
Page  
Functional Features ....................................................... 16  
Auxilliary Functions ........................................................ 21  
Electromagnetic Compatibility (EMC) ............................ 25  
Immunity to Environmental Conditions........................... 26  
Environmental Conditions .............................................. 27  
Mechanical Data ............................................................ 28  
Safety and Installation Instructions ................................ 30  
Description of Options.................................................... 33  
Accessories.................................................................... 33  
Summary.......................................................................... 1  
Type Survey and Key Data .............................................. 2  
Type Key .......................................................................... 2  
Sensor Type Key .............................................................. 3  
Functional Description...................................................... 4  
Electrical Input Data ......................................................... 5  
Electrical Output Data of the Rectifier Version ................. 7  
Electrical Output Data of Battery Charger Version......... 10  
Control Features of the Battery Charger Version ........... 12  
Temperature Sensors..................................................... 15  
Edition 4/4.99  
1/33  
MELCHER  
The Power Partners.  
1234567...33

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