5秒后页面跳转
SMFL2815D/KR PDF预览

SMFL2815D/KR

更新时间: 2024-02-04 05:07:08
品牌 Logo 应用领域
CRANE 转换器模拟IC信号电路输入元件局域网
页数 文件大小 规格书
10页 206K
描述
DC/DC CONVERTERS 28 VOLT INPUT

SMFL2815D/KR 技术参数

生命周期:Contact Manufacturer包装说明:,
Reach Compliance Code:unknown风险等级:5.74
模拟集成电路 - 其他类型:DC-DC REGULATED POWER SUPPLY MODULE

SMFL2815D/KR 数据手册

 浏览型号SMFL2815D/KR的Datasheet PDF文件第2页浏览型号SMFL2815D/KR的Datasheet PDF文件第3页浏览型号SMFL2815D/KR的Datasheet PDF文件第4页浏览型号SMFL2815D/KR的Datasheet PDF文件第5页浏览型号SMFL2815D/KR的Datasheet PDF文件第6页浏览型号SMFL2815D/KR的Datasheet PDF文件第7页 
FEATURES  
SMFL SERIES  
65 WATT  
DC/DC CONVERTERS  
28 VOLT INPUT  
• Fully qualified to Class H or K  
• –55° to +125°C operation  
• 16 to 40 VDC input  
• Fully Isolated  
• Magnetic feedback  
• Fixed frequency, 600 kHz typical  
Topology – Single Ended Forward  
• Inhibit input side and output side  
• Sync function  
• Output trim on single output models  
• Indefinite short circuit protection  
• Remote sense on single output models  
• Up to 87% efficiency  
MODELS  
VDC OUTPUT  
SINGLE  
3.3  
5
DUAL  
5
12  
15  
12  
15  
• Parallelable up to 180 watts  
Size (max.): 3.005 x 1.505 x 0.410 inches (76.33 x 38.23 x 10.41 mm)  
See Figures 17 and 18 for dimensions. Case options V, W, Y, and  
Z are available by special order. Please refer to our databook or  
contact your Interpoint representative for more information.  
Weight:  
85 grams maximum  
Screening: Space prototype, Class H, or Class K (MIL-PRF-38534)  
Radiation hardness levels O or R  
Available configurations: OO, HO, HR, KR  
DESCRIPTION  
INHIBIT  
The SMFL Series™ 28-volt DC/DC converters are rated up to 65  
watts output power over a -55° to +125°C temperature range with a  
28 Vdc nominal input. On dual output models up to 70% of the rated  
output power can be drawn from either the positive or negative  
outputs. Current sharing allows the units to be paralleled for total  
power of up to 180 watts. The welded, hermetically sealed package  
is only 3.0 x 1.5 x 0.40 inches, giving the series an overall power  
density of up to 45 watts per cubic inch.  
The SMFL Series converters have two TTL compatible inhibit termi-  
nals (INH1 and INH2) that can be used to disable power conversion,  
resulting in a very low quiescent input current and no generation of  
switching noise. An open collector TTL compatible low (<0.8 volts)  
is required to inhibit the converter between INH1 (pin 4) and Input  
Common (pin 2). An open collector TTL compatible low (<0.5 volts)  
is required to inhibit the converter between INH2 (pin 12) and Output  
Common (pin 8). The application of intermediate voltages to these  
pins (1.5 to 10.5 volts) should be avoided.  
SCREENING AND REPORTS  
SMFL converters offer three screening options (Space prototype,  
Class H, or Class K) and two levels of radiation hardness (O or R).  
See Tables 1, 2, and 3 for more information. Detailed reports on  
product performance are also available and are listed in Table 4.  
SYNC  
Converters may be synced to an external clock (525 to 675 kHz) or  
to one another by using the sync in or out pins. The nominal free-  
run switching frequency is 600 kHz.  
DESIGN FEATURES  
CURRENT AND PARALLEL OPERATION  
The SMFL Series converters are switching regulators that use a  
quasi-square wave, single ended forward converter design with a  
constant switching frequency of 600 kHz typical.  
Multiple single output SMFL converters may be used in parallel to  
drive a common load. In this mode of operation the load current is  
shared by two or three SMFL converters. In current sharing mode,  
one SMFL converter is designated as a master. The SLAVE pin (pin  
11) of the master is left unconnected and the MSTR/INH2 pin (pin  
12) of the master is connected to the SLAVE pin (pin 11) of the slave  
units. The units designated as slaves have the MSTR/INH2 pin (pin  
12) connected to the SNS RTN pin (pin 9). Note that synchronizing  
the units together is not required for current sharing operation. A  
second slave unit may be placed in parallel with a master and slave;  
this requires the TRI pin (pin 3) of the master unit to be connected  
to the SNS RTN pin (pin 9). See Figure 2 for a block diagram of  
parallel connections.  
Isolation between input and output circuits is provided with a trans-  
former in the forward path and a wide bandwidth magnetic coupling  
in the feedback control loop. The SMFL uses a unique dual loop  
feedback technique that controls output current with an inner feed-  
back loop and an output voltage with a cascaded voltage mode  
feedback loop.  
The additional secondary current mode feedback loop improves  
transient response in a manner similar to primary current mode  
control and allows for ease of paralleling, but without the cost and  
complexity.  
When paralleled, 95% of the total combined power ratings of the  
SMFL converters are available at the load. Overload and short  
circuit performance are not adversely affected during parallel  
operation.  
The constant frequency, pulse-width modulated converters use a  
quasi-square wave single-ended forward design. Tight load regula-  
tion is achieved through a wide-bandwidth magnetic feedback  
circuit. The output voltage on single SMFL models can be trimmed  
to a specific output voltage by adding an external resistor.  
1

与SMFL2815D/KR相关器件

型号 品牌 获取价格 描述 数据表
SMFL2815D/OO CRANE

获取价格

Analog Circuit, Hybrid,
SMFL2815DV/KR CRANE

获取价格

2-OUTPUT 65W DC-DC REG PWR SUPPLY MODULE, HERMETIC SEALED PACKAGE-12
SMFL2815DV/OO CRANE

获取价格

2-OUTPUT 65W DC-DC REG PWR SUPPLY MODULE, HERMETIC SEALED PACKAGE-12
SMFL2815S CRANE

获取价格

Operating temperature -55° to +125°C Qualifie
SMFL2815S/HL CRANE

获取价格

Analog Circuit, Hybrid,
SMFL2815S/HO CRANE

获取价格

SMFL Single and Dual DC/DC Converters
SMFL2815S/HO INTERPION

获取价格

Single and Dual DC/DC Converters
SMFL2815S/HO CRANE

获取价格

Analog Circuit, Hybrid,
SMFL2815S/HP CRANE

获取价格

1-OUTPUT 65W DC-DC REG PWR SUPPLY MODULE, HERMETIC SEALED PACKAGE-12
SMFL2815S/KR CRANE

获取价格

DC/DC CONVERTERS 28 VOLT INPUT