AmplifierCircuits

General Description: The TA8273H is 4 ch BTL audio power amplifier for car audio   application.   This IC can generate more high power: POUTMAX = 47 W as it   is included the pure complementary PNP and NPN transistor   output stage.   It is designed low distortion ratio for 4 ch BTL audio power   amplifier, built-in stand-by function, muting function, and   diagnosis circuit which can detect output to VCC/GND short,   output offset voltage and over voltage input mode. Additionally, the AUX amplifier and various kind of protector   for car audio use are built-in.  Circuit Diagram: 47 Watt BTL Audio Power Amplifier 4-channel Datasheet for TDA8273: Download