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AHE2805S/ES-MSTR Scheda tecnica(PDF) 1 Page - International Rectifier |
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AHE2805S/ES-MSTR Scheda tecnica(HTML) 1 Page - International Rectifier |
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1 / 8 page  01/08/07 www.irf.com 1 HYBRID-HIGH RELIABILITY DC/DC CONVERTER AHE28XXS SERIES Description n 17V to 40VDC Input Range (28VDC Nominal) n 5V, 12V and 15V Outputs Available n Indefinite Short Circuit and Overload Protection n 17 W/in 3 Power Density n 15W and 20W Output Power Models n Fast Loop Response for Superior Transient Characteristics n Operating Temperature Range from -55°C to +125°C Available n Popular Industry Standard Pin-Out n Resistance Seam Welded Case for Superior Long Term Hermeticity n Efficiencies up to 84% n Shutdown from External Signal n Military Screening n 325,000 hour MTBF at 85°C (AUC) n Standard Microcircuit Drawings Available Features AHE 28V Input, Single Output The advanced feedback design provides fast loop response for superior line and load transient characteristics and offers greater reliability and radiation tolerance than devices incorporating optical feedback circuits. Manufactured in a facility fully qualified to MIL-PRF- 38534, these converters are fabricated utilizing DSCC qualified processes. For available screening options, refer to device screening table in the data sheet. Variations in electrical, mechanical and screening can be accommodated. Extensive computer simulation using complex modeling enables rapid design modification to be provided. Contact IR Santa Clara with specific requirements. The AHE28XXS Series of DC/DC converters feature high power density and an extended temperature range for use in military and industrial applications. Designed to MIL-STD-704D input requirements, these devices have nominal 28VDC inputs with +5V, +12V and +15V single outputs to satisfy a wide range of requirements. The circuit design incorporates a pulse width modulated push-pull topology operating in the feed-forward mode at a nominal switching frequency of 250KHz. Input to output isolation is achieved through the use of transformers in the forward and feedback circuits. PD-94554B Three standard temperature grades are offered with screening options. Refer to Part Number section. They can be provided in a standard plug-in package for PC mounting or in a flanged package for more severe environments. |
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