TDA7381中文资料四路BTL输出功率放大器，支持待机输入、静音输入和片段检测数据手册ST规格书

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