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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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MFK283R3S/883 Fiches technique(PDF) 1 Page - Interpoint Corporation Company |
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MFK283R3S/883 Fiches technique(HTML) 1 Page - Interpoint Corporation Company |
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1 / 23 page  description The Interpoint® MFK Series™ of high frequency dc-dc converters offers a wide input voltage range of 16 to 50 volts and up to 25 watts of output power. The converters are capable of withstanding transients of up to 65 volts for up to one second. The package is a hermetically sealed, welded metal case. Flanged and non-flanged models are available. Converter Design The MFK converters are switching regulators that use a quasi- square wave, single-ended forward converter design with a constant switching frequency of 500 kHz, typical. Isolation between input and output circuits is provided with transformers in the forward path and in the feedback control loop. HigHer Power Density The MFK Series offers a new standard of performance for small size and high power density. At just 0.360 inch high and a total footprint of 1.7 in2, this low profile package offers a total power density of up to 42 watts per cubic inch. Low noise, HigH AuDio rejeCtion The MFK converters current mode control system provides excellent dynamic response and noise rejection. Audio rejection is typically 50 dB. Output voltage response for a 50% to 100% step load transient is as low as 4% with a 400 µs recovery time. The MFK Series converters are provided with internal filtering capacitors that help reduce the need for external components in normal operation. Use our FMCE-0328 EMI filter to meet the requirements of MIL-STD-461C CE03 and CS01 and/or MIL-STD-461D, E and F CE102 and CS101 levels of conducted emissions. inHibit FunCtion MFK converters provide an inhibit terminal that can be used to disable internal switching, resulting in no output and very low quiescent input current. The converter is inhibited when the inhibit pin is pulled below 0.8 volts. The converter is enabled when the pin, which is internally connected to a pull-up current source, is left unconnected or is connected to an open-collector gate. The open circuit voltage associated with the inhibit pin is 8.5 to 12 V. In the inhibit mode, a maximum of 4 mA must be sunk from the inhibit pin. See Table 5 on page 5 for more information. synCHronizAtion A synchronization feature is included with the MFK Series that allows the user to match the switching frequency of the converter to the frequency of a system clock. Synchronization allows the user to adjust the nominal 500 kHz operating frequency to any frequency within the range of 450 kHz to 550 kHz. This is initiated by applying an active high input of the desired frequency to the sync pin. See Table 5 on page 5 for more information. sHort CirCuit ProteCtion MFK Series converters provide short circuit protection by restricting the output current to approximately 115% of the full load output current. unDervoLtAge LoCkout Undervoltage lockout with hysteresis prevents the converters from operating below approximately 15 volts input voltage to keep system current levels smooth, especially during initialization or re-start operations. Features • 16to50voltinput • Upto87%efficiency,42W/in3 • AvailabletoClassH,MIL-PRF-38534 • Undervoltagelockout • -55°Cto+125°Coperation • Fullyisolated • Magneticfeedback • Fixedfrequency,500kHztypical • 65voltsforupto1sec.transient protection • Inhibitandsyncfunction • Outputshortcircuitprotection MOdeLs Output VOltage (V) SINGLE DUAL 1.8 ±5 2.5 ±7 3.3 ±12 5 ±15 5.2 5.7 12 15 28 Crane Aerospace & Electronics Power Solutions MFKsingleanddualdC-dCConverters Crane Aerospace & Electronics Power Solutions – Interpoint Products 10301 Willows Rd. NE, Redmond, WA 98052 +1 425-882-3100 • power@crane-eg.com www.craneae.com/interpoint Page 1 of 23 16tO50vOLtsInPUt–25WAtt MFK Rev AJ - 2016.04.25 |
Numéro de pièce similaire - MFK283R3S/883 |
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Description similaire - MFK283R3S/883 |
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