Description

The TDA7391PD is a bridge class AB audio power amplifier specially intended for car radio high power applications.

Features

■ High power capability:

– 40 W/3.2 Ω EIAJ

– 32 W/3.2 Ω @ VS = 14.4 V,

f = 1 kHz, d = 10

– 26 W/4 Ω @ VS = 14.4 V, f = 1 kHz,

d = 10

■ Differential inputs (either single ended or

differential input signal are accepted)

■ Minimum external component count:

– No bootstrap capacitors

– No Boucherot cells

– Internally fixed gain (30 dB)

– No SVR capacitor

■ Stand-by function (CMOS compatible)

■ Programmable turn-on/off delay

■ No audible pop during mute and stand-by

operations

Protections

■ Short circuit (to GND, to VS, across the load)

■ Very inductive loads

■ Chip over temperature

■ Load dump

■ Open GND

■ ESD