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AFL27012S PDF预览

AFL27012S

更新时间: 2024-12-01 05:06:39
品牌 Logo 应用领域
英飞凌 - INFINEON 电源电路局域网
页数 文件大小 规格书
16页 448K
描述
270V Input, Single Output

AFL27012S 数据手册

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PD - 94435A  
AFL270XXS SERIES  
270V Input, Single Output  
ADVANCED ANALOG  
HIGH RELIABILITY  
HYBRID DC/DC CONVERTERS  
Description  
The AFL Series of DC/DC converters feature high power  
density with no derating over the full military tempera-  
ture range. This series is offered as part of a complete  
family of converters providing single and dual output  
voltages and operating from nominal +28 or +270 volt  
inputs with output power ranging from 80 to 120 watts.  
For applications requiring higher output power, multiple  
converters can be operated in parallel. The internal cur-  
rent sharing circuits assure equal current distribution  
among the paralleled converters. This series incorpo-  
rates Advanced Analog’s proprietary magnetic pulse  
feedback technology providing optimum dynamic line  
and load regulation response. This feedback system  
samples the output voltage at the pulse width modulator  
fixed clock frequency, nominally 550 KHz. Multiple con-  
verters can be synchronized to a system clock in the  
500 KHz to 700 KHz range or to the synchronization  
output of one converter. Undervoltage lockout, primary  
and secondary referenced inhibit, soft-start and load  
fault protection are provided on all models.  
AFL  
Features  
n 160 To 400 Volt Input Range  
n 5, 6, 9, 12, 15 and 28 Volt Outputs Available  
n High Power Density - up to 84 W /in  
3
n Up To 120 Watt Output Power  
n Parallel Operation with Stress and Current  
Sharing  
n Low Profile (0.380") Seam Welded Package  
n Ceramic Feedthru Copper Core Pins  
n High Efficiency - to 87%  
n Full Military Temperature Range  
n Continuous Short Circuit and Overload  
Protection  
n Remote Sensing Terminals  
n Primary and Secondary Referenced  
Inhibit Functions  
n Line Rejection > 60 dB - DC to 50KHz  
n External Synchronization Port  
n Fault Tolerant Design  
These converters are hermetically packaged in two en-  
closure variations, utilizing copper core pins to mini-  
mize resistive DC losses. Three lead styles are avail-  
able, each fabricated with Advanced Analog’s rugged  
ceramic lead-to-package seal assuring long term  
hermeticity in the most harsh environments.  
n Dual Output Versions Available  
n Standard Military Drawings Available  
Manufactured in a facility fully qualified to MIL-PRF-  
38534, these converters are available in four screening  
grades to satisfy a wide range of requirements. The CH  
grade is fully compliant to the requirements of MIL-PRF-  
38534 for class H. The HB grade is fully processed and  
screened to the class H requirement, but does not have  
material element evaluated to the class H requirement.  
Both grades are tested to meet the complete group “A”  
test specification over the full military temperature range  
without output power deration. Two grades with more  
limited screening are also available for use in less  
demanding applications. Variations in electrical,  
mechanical and screening can be accommo-  
dated. Contact Advanced Analog for special re-  
quirements.  
www.irf.com  
1
07/24/02  

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