June 2008

Rev 6

1/13

13

TDA7381

4 x 25W quad bridge car radio amplifier

Features

–4 x 30 W/4

Ω max.

–4 x 25 W/4

Ω EIAJ

–4 x 18 W/4

Ω @ 14.4 V, 1 kHz, 10 %

–4 x 15 W/4

Ω @ 13.2 V, 1 kHz, 10 %

– Clipping

– Out to GND short

– Thermal shutdown

– Internally fixed gain (26 dB)

– No external compensation

– No bootstrap capacitors

Protections:

load

limiter

Description

The TDA7381 is a class AB audio power amplifier

in Flexiwatt25 package designed for car radio

applications. Thanks to the fully complementary

PNP/NPN output configuration the TDA7381

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 operations.

The fault diagnostics makes it possible to detect

mistakes during Car- Radio assembly and wiring

in the car

Flexiwatt25

Table 1.

Device summary

Order code

Package

Packing

TDA7381

Flexiwatt25

Tube

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