AmplifierCircuits

Features ■ High output power capability: – 4 x 42 W / 4  max. – 4 x 23 W / 4  @ 14.4 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 VS short – 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 Circuit Diagram 4 x 42 W quad bridge car radio amplifier TDA7385