Class D Audio Chipset With Protected PWM Switching

International Rectifier introduced a Class D audio chipset comprising the IRS20965 digital audio driver IC with protected Pulse Width Modulation (PWM) switching and a full complement of audio MOSFETs optimized for high performance Class D audio amplifier applications.

The IRS20965 features high-side and low-side independent floating PWM input to allow deadtime control from an external PWM controller. Shoot-through prevention logic provides additional safety in the event of PWM controller failure. The new IC also features over-current sensing output and 2 A gate drive output capability.

Operating up to 800 kHz, other key features of the IRS20965 include programmable bidirectional over-current detection with self-reset function, high noise immunity, ±100 V ratings to deliver up to 500 W in output power and 3.3 V/5 V logic compatible input.

Pricing for the IRS20965SPBF begins at US $3.83 each in 10,000-unit quantities. Production orders are available immediately. The devices are RoHS compliant and industrial qualified.