TDA7382

4 x 22W FOUR BRIDGE CHANNELS CAR RADIO AMPLIFIER

HIGH OUTPUT POWER CAPABILITY:

4 x 30W max./4

Ω EIAJ

4 x 22W/4

Ω @ 14.4V, 1KHz, 10%

4 x 18.5W/4

Ω @ 13.2V, 1KHz, 10%

CLIPPING DETECTOR (THD = 10%)

LOW DISTORTION

LOW OUTPUT NOISE

ST-BY FUNCTION

MUTE FUNCTION

AUTOMUTE AT MIN. SUPPLY VOLTAGE DE-

TECTION

LOW EXTERNAL COMPONENT COUNT:

– INTERNALLY FIXED GAIN (26dB)

– NO EXTERNAL COMPENSATION

– NO BOOTSTRAP CAPACITORS

PROTECTIONS:

ACROSS THE LOAD

VERY INDUCTIVE LOADS

OVERRATING CHIP TEMPERATURE WITH

SOFT THERMAL LIMITER

LOAD DUMP VOLTAGE

FORTUITOUS OPEN GND

REVERSED BATTERY

ESD PROTECTION

DESCRIPTION

The TDA7382 is a new technology class AB

Audio Power Amplifier in Flexiwatt 25 package

designed for high end car radio applications.

Thanks to the fully complementary PNP/NPN out-

put configuration the TDA7382 allows a rail to rail

output voltage swing with no need of bootstrap

capacitors. The extremely reduced components

count allows very compact sets. The on-board

clipping detector simplifies gain compression op-

erations.

September 1999

®

ORDERING NUMBER: TDA7382

IN1

0.1

µF

MUTE

ST-BY

IN2

0.1

µF

OUT1+

OUT1-

OUT2+

OUT2-

PW-GND

IN3

0.1

µF

IN4

0.1

µF

OUT3+

OUT3-

OUT4+

OUT4-

PW-GND

PW-GND

PW-GND

D98AU818

AC-GND

0.1

µF47µF

SVR

TAB

S-GND

Vcc1

Vcc2

100nF

2.200

µF

CLIPPING DET.

BLOCK AND APPLICATION DIAGRAM

FLEXIWATT25

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