TDA7376B

2 x 35W POWER AMPLIFIER FOR CAR RADIO

HIGH OUTPUT POWER CAPABILITY:

2 x 40W max./4

Ω

2 x 35W/4

Ω EIAJ

2 x 25W4

Ω @ 14.4V, 1KHz, 10%

DIFFERENTIAL INPUTS

MINIMUM EXTERNAL COMPONENT COUNT

INTERNALLY FIXED GAIN (26dB)

MUTE FUNCTION (CMOS COMPATIBLE)

AUTOMUTE AT MINIMUM SUPPLY VOLT-

AGE DETECTION

STAND-BY FUNCTION

NO AUDIBLE POP DURING MUTE AND ST-

BY OPERATIONS

CLIPPING DETECTOR WITH PROGRAMMA-

BLE DISTORTION THRESHOLD

PROTECTIONS:

SHORT CIRCUIT (OUT TO GROUND, OUT

TO

SUPPLY

VOLTAGE,

ACROSS

THE

LOAD)

OVERRATING CHIP TEMPERATURE WITH

SOFT THERMAL LIMITER

LOAD DUMP VOLTAGE

FORTUITOUS OPEN GROUND

LOUDSPEAKER DC CURRENT

ESD

DESCRIPTION

The TDA7376B is a new technology dual bridge

Audio Amplifier in Multiwatt 15 package designed

for car radio applications. Thanks to the fully com-

plementary PNP/NPN output stage configuration

the TDA7376B delivers a rail-to-rail voltage swing

with no need of bootstrap capacitors. Differential

input pairs, that will accept either single ended or

differential input signals, guarantee high noise im-

munity making the device suitable for both car ra-

dio and car boosters applications.

The audio mute control, that attenuates the out-

put signal of the audio amplifiers, suppresses pop

on - off transients and cuts any noises coming

from previous stages. The St-By control, that de-

biases the amplifiers, reduces the cost of the

power switch. The on-board programmable distor-

tion detector allows compression facility when-

ever the ampifier is overdriven, so limiting the dis-

tortion at any levels inside the presettable range.

This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

September 1998

®

PIN CONNECTION (Continued)

MULTIWATT15

ORDERING NUMBER: TDA7376B

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