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AFL12012S Datasheet(PDF) 1 Page - International Rectifier |
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AFL12012S Datasheet(HTML) 1 Page - International Rectifier |
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1 / 11 page  09/10/02 www.irf.com 1 ADVANCED ANALOG HIGH RELIABILITY HYBRID DC/DC CONVERTERS AFL120XXS SERIES 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, +50, +120 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 current sharing circuits assure equal cur- rent distribution among the paralleled converters. This series incorporates Advanced Analog’s proprietary mag- netic pulse feedback technology providing optimum dynamic line and load regulation response. This feed- back system samples the output voltage at the pulse width modulator fixed clock frequency, nominally 550 KHz. Multiple converters can be synchronized to a sys- tem 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 mod- els. 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. 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 de- Description manding applications. Variations in electrical, me- chanical and screening can be accommodated. Contact Advanced Analog for special require- ments. n 80 To 160 Volt Input Range n High Power Density - up to 84 W / in3 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 > 50 dB - DC to 50KHz n External Synchronization Port n Fault Tolerant Design n Dual Output Versions Available n Standard Military Drawings Available Features AFL 120V Input, Single Output PD - 94447B |
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Similar Description - AFL12012S |
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