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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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HA-2542 Fiches technique(PDF) 5 Page - Intersil Corporation |
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HA-2542 Fiches technique(HTML) 5 Page - Intersil Corporation |
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5 / 12 page  5 Schematic Diagram Application Information (Refer to Application Note AN552 for Further Information) The Intersil HA-2542 is a state of the art monolithic device which also approaches the “ALL-IN-ONE” amplifier concept. This device features an outstanding set of AC parameters augmented by excellent output drive capability providing for suitable application in both high speed and high output drive circuits. Primarily intended to be used in balanced 50 Ω and 75Ω coaxial cable systems as a driver, the HA-2542 could also be used as a power booster in audio systems as well as a power amp in power supply circuits. This device would also be suitable as a small DC motor driver. The applications shown in Figures 2 through Figure 4 demonstrate the HA-2542 at gains of +100 and +2 and as a video cable driver for small signals. Power Dissipation Considerations At high output currents, especially with the PDIP package, care must be taken to ensure that the Maximum Junction Temperature (TJ, see “Absolute Maximum Ratings” table) is not exceeded. As an example consider the HA-2542 in the PDIP package, with a required output current of 20mA at VOUT = 5V. The power dissipation is the quiescent power (1.2W = 30V x 40mA) plus the power dissipated in the output stage (POUT = 200mW = 20mA x (15V - 5V)), or a total of 1.4W. The thermal resistance ( θJA) of the PDIP package is 100oC/W, which increases the junction temperature by 140oC over the ambient temperature (TA). Remaining below TJMAX requires that TA be restricted to ≤ 10oC (150oC - 140oC). Heatsinking would be required for operation at ambient temperatures greater than 10oC. R11 R7 R8 R9 R10 75 Ω R25 5k Ω R12 75 Ω R15 QP15 QP13 QP14 QP34 QP16 QP35 QP33 QP32 QN24 QP25 QN38 QP36 QN23 QP7 QP5 C1 COMP QN40 QN29 QN10 QN4 QN38 QN2 -IN C2 QN1 +IN R6 QN9 QN8 QN3 QN37 QN21 QN20 QN19 R22 R2 QN18 R27 R3 R28 R4 R16 R17 R5 R13 R21 R1 QN17 QP43 R14 QN12 QP11 QP31 QN42 R18 QN44 DZ45 BAL BAL V+ V- OUTPUT R2A QN22 QN26 QN41 R26 5k Ω HA-2542 |
Numéro de pièce similaire - HA-2542 |
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Description similaire - HA-2542 |
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