TDA7389A Datasheet TDA7389A | P1-P3

September 2013 Rev 3 1/14

TDA7389A

4 x 45W quad bridge car radio amplifier

Features

■ High output power:

– 4 x 45 W / 4  max.

– 4 x 28 W / 4  @ 14.4 V, 1 kHz, 10 %

■ Low distortion

■ Low output noise

■ Standby function

■ Mute function

■ Automute at min. supply voltage detection

■ Low external component count:

– Internally fixed gain (26dB)

– No external compensation

– No bootstrap capacitors

■ Clipping detector

■ Offset detector

■ Diagnostic facility for:

– Out to GND short

– Out to V

short

– Thermal shutdown

Protections:

■ Output short circuit to GND, to V

, across the

load

■ Very inductive loads

■ Overrating chip temperature with soft thermal

limiter

■ Load dump voltage

■ Fortuitous open GND

■ Output DC offset detector

■ Reversed battery

■ ESD

Description

The TDA7389A is an AB class audio power

amplifier, packaged in Flexiwatt 27 designed for

high end car radio applications.

Based on the fully complementary PNP/NPN

configuration the TDA7389A allows a rail to rail

output voltage swing with no need of bootstrap

capacitors.

Flexiwatt27

Table 1. Device summary

Order code Package Packing

TDA7389A Flexiwatt27 Tube

www.st.com

Obsolete Product(s) - Obsolete Product(s)

Contents TDA7389A

2/14

Contents

1 Pin connection and block diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.4 Electrical characteristic curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.5 Test and application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3 Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.1 SVR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.2 Input stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.3 Standby and muting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

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TDA7389A List of tables

3/14

List of tables

Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Table 2. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Table 3. Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Table 4. Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Table 5. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

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P1-P3 P4-P6 P7-P9 P10-P12 P13-P14

TDA7389A

Mfr. #:

Buy TDA7389A

Manufacturer:

STMicroelectronics

Description:

Audio Amplifiers 6 x 42W Quad Bridge Car-Radio Amplifier

Lifecycle:

New from this manufacturer.

Delivery:

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TDA7389A