November 2007

Rev 1

1/14

1

TDA7389

4 x 45W quad bridge car radio amplifier

Features

–4 x 45W/4

Ω max.

–4 x 28W/4

Ω @ 14.4V, 1KHz, 10%

– Internally fixed gain (26dB)

– No external compensation

– No bootstrap capacitors

– Out to GND short

– Thermal shutdown

Protections:

load

limiter

Description

The TDA7389 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

output configuration the TDA7389 allows a rail to

rail output voltage swing with no need of bootstrap

capacitors.

Flexiwatt 25

Table 1.

Device summary

Order code

Package

Packing

TDA7389

Flexiwatt 25

Tube

www.st.com