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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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SI-8025JF Fiches technique(PDF) 6 Page - Allegro MicroSystems |
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SI-8025JF Fiches technique(HTML) 6 Page - Allegro MicroSystems |
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6 / 9 page  SI-8025JF Step-Down to 2.5 V, 1.5 A, DC/DC Converter 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 Switching Regulators 6 Layout Guideline APPLICATIONS INFORMATION (cont.) Thermal Protection. Circuitry turns off the switching transistor when the junction temperature rises above 150°C. It is intended only to protect the device from failures due to excessive junction temperatures and should not imply that output short circuits or continuous overloads are permitted. Heat Radiation and Reliability. The reliability of the IC is directly related to the junction temperature (T J) in its operation. Accordingly, careful consideration should be given to heat dissipation. The graph on page 2 illustrates the effect of thermal resistance on the allowable package power dissipation. When mounting to a heat sink, apply silicone grease (Shin- Etsu Chemical G746, Dow Corning Toray Silicone SC102, or Toshiba Silicone SY6260). Recommended mounting hardware torque: 0.588 ~ 0.686 Nm or 6.0 ~ 7.0 kgf•cm (4.34 ~ 5.06 lbf•ft). The junction temperature (T J) can be determined from either of the following equations: T J = (PDR θJA) + TA or T J = (PDR θJC) + TC where P D = VIII – VOIO – VFIO(1 – [VO/VI]) or the adjacent graph, V F = the Schottky diode forward voltage, and RθJC = 6°C/W. |
Numéro de pièce similaire - SI-8025JF |
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Description similaire - SI-8025JF |
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