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廬

TDA7240A

20W BRIDGE AMPLIFIER FOR CAR RADIO

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COMPACT HEPTAWATT PACKAGE

FEW EXTERNAL COMPONENTS

OUTPUT PROTECTED AGAINST SHORT

CIRCUITS TO GROUND AND ACROSS LOAD

DUMP TRANSIENT

THERMAL SHUTDOWN

LOUDSPEAKER PROTECTION

HIGH CURRENT CAPABILITY

LOW DISTORTION/LOW NOISE

Heptawatt H

Heptawatt V

ORDERING NUMBERS:

TDA7240AH

TDA7240AV

DESCRIPTION

The TDA7240A is a 20W bridge audio amplifier IC

designed specially for car radio applications.

Thanks to the low external part count and compact

Heptawatt 7-pin power package the TDA7240A

occupies little space on the printed circuit board.

Figure 1:

Test and Application Circuit

Reliable operation is guaranteed by a comprehen-

sive array of on-chip protection features. These in-

clude protection against AC and DC output short

circuits (to ground and across the load), load dump

transients, and junction overtemperature. Additio-

nally, theTDA7240Aprotectstheloudspeakerwhen

one output is short-circuited to ground.

December 1998

1/8

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