Overview
The LA47503 is a BTL 4ch (50W×4) power IC for car audio.

Functions
•Maximum output display 48W×4 (VCC= 14.4V, 4Ω, 1kHz, average measurement)
•43W×4 (VCC= 14.4V, 4Ω, 1kHz)
•Equipped an electric mirror noise control pin.
•Built-in mute function.
•Built-in stand-by SW.
•Various types of built-in protection circuits (Air fault, ground fault, load short, over voltage and heat protections)
•GND open ground fault resistance amount 16V.