描述 Description

The TDA7381 is a class AB audio power amplifier in Flexiwatt25 package designed for car radio applications. Thanks to the fully complementary PNP/NPN output configuration the TDA7381 allows a rail to rail output voltage swing with no need of bootstrap capacitors..

The extremely reduced components count allows very compact sets. The on-board clipping detector simplifies gain compression operations. The fault diagnostics makes it possible to detect mistakes during car-radio assembly and wiring in the car.

特性 Features

? High output power capability:
?4 x 30 W/4 Ω max.
?4 x 25 W/4 Ω EIAJ
?4 x 18 W/4 Ω @ 14.4 V, 1 kHz, 10 %
?4 x 15 W/4 Ω @ 13.2 V, 1 kHz, 10 %
? Clipping detector
? Low distortion
? Low output noise
? Standby function
? Mute function
? Automute at min. supply voltage detection
? Diagnostics facility for:
?Clipping
?Out to GND short
?Out to VSshort
?Thermal shutdown
? Low external component count:
?Internally fixed gain (26 dB)
?No external compensation
?No bootstrap capacitors
? Protections:
?Output short circuit to GND, to VS, across the load
?Very inductive loads
?Overrating chip temperature with soft thermal limiter
?Load dump voltage
?Fortuitous open GND
?Reversed battery
?ESD protection