HA-2542-5(2002) Ver la hoja de datos (PDF) - Intersil
Número de pieza
componentes Descripción
fabricante
HA-2542-5 Datasheet PDF : 12 Pages
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HA-2542
Schematic Diagram
R11 R7 R8 R9
QP15 QP13
QP31
R14
QN12
QP11
BAL
QP14
R10
75Ω
R25
5kΩ
QP34
QP5
BAL
V+
R12
75Ω
QP16
R26
5kΩ
QP35
R15
QP33
QP7
QP32
QN23
QN24
QN44
DZ45
QN42
R18
QP43
QN17
R1
QN1 QN2
+IN
-IN
R6
QN18
QN19
R22
QN8
QN9
QN3
QN20
C2
QN37
QN21
R2 R27 R3 R28 R4
R16
C1
QP36
OUTPUT
QN38
COMP
QP25
QN4
QN10
QN38
R2A
QN22
QN40
QN29
QN26
QN41
R17
R5
R13
R21
V-
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 50Ω 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.
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.
Power Dissipation Considerations
5
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