TDA8939

Zero dead time Class-D 7.5 A power comparator

The TDA8939 is a power comparator designed for use in a high efficiency class-D audio power amplifier system.

It contains power switches, drive logic, protection circuitry, bias circuitry and a fully differential input stage (comparator).

This TDA8939 is optimized for applications in fully digital open-loop class-D audio systems (in combination with a digital PWM controller).

The TDA8939 power comparator operates with high efficiency and low dissipation. The system operates over a wide supply voltage range from ±10 V up to ±30 V.