TDA7389 查看數據表（PDF） - STMicroelectronics

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TDA7389

4 x 45W quad bridge car radio amplifier

STMicroelectronics 

TDA7389

4 x 45W quad bridge car radio amplifier

Features

■ High output power:

– 4 x 45W/4Ω max.

– 4 x 28W/4Ω @ 14.4V, 1KHz, 10%

■ Low distortion

■ Low output noise

■ Stand-by 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

■ Diagnostic facility for:

– Out to GND short

– Out to VS short

– Thermal shutdown

Protections:

■ Output short circuit to GND, to VS, across the

load

■ Very inductive loads

■ Overrating chip temperature with soft thermal

limiter

Flexiwatt 25

■ Load dump voltage

■ Fortuitous open GND

■ Reversed battery

■ ESD

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.

Table 1.

Device summary

Order code

TDA7389

Package

Flexiwatt 25

Packing

Tube

November 2007

Rev 1

1/14

www.st.com

1

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