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AMA2812D Scheda tecnica(PDF) 5 Page - International Rectifier |
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AMA2812D Scheda tecnica(HTML) 5 Page - International Rectifier |
5 / 7 page www.irf.com 5 AMA28XXD Series Block Diagram Application Information Inhibit Function (Enable) Connecting the enable input (Pin 5) to input common (Pin 7) will cause the converter to shut down. It is recommended that the enable pin be driven by an open collector device capable of sinking at least 400 µA of current. The open circuit voltage of the inhibit input is 10 +1.0 VDC. An optional EMI filter is available (ASF461 or AFH461) will reduce the input ripple current to levels below the limits imposed by MIL-STD-461 CE03. EMI Filter Thermal Considerations Irrespective of the fact that the AMA28XXD series of converters are relatively low power devices and are designed to provide efficient voltage conversion, there will be some heat generated during normal operation. To avoid a continuous thermal rise that may eventually exceed the maximum case temperature rating and to maintain a safe operating environment for the internal components, these converters should be attached to a heat conducting surface allowing a continuous flow of the heat away from the base plate. This becomes more important when operating in the near vacuum environment of space which provides no alternate heat radiating path. Radiation Specification Parameter Condition Min Typ Max Unit Total Ionizing Dose MIL-STD-883, Method 1019.4 Operating bias applied during exposure 25 — — KRads (Si) Heavy Ion (Single event effects) BNL Dual Van de Graf Generator 60 — — MeV •cm2 /mg International Rectifier currently does not have a DSCC certified Radiation Hardness Assurance Program. Controller Error Amplifier 1 2 8 6 7 5 Case Output Return +Output Enable Input Return +Input 3 -Output CS Housekeeping Supply |
Codice articolo simile - AMA2812D |
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Descrizione simile - AMA2812D |
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