Protected Digital Audio Driver with Floating PWM input in a 16-Lead SOIC Narrow Package The IRS20957S is a high voltage, high speed MOSFET driver with a floating PWM input designed for Class D audio amplifier applications. The IRS2057S forms a complete Class D amplifier with dual over current, and shoot-through protection, as well as UVLO protection for the three bias supplies. The dead-time generation block enables accurate gate switching and optimum dead-time setting for lower thd+n and noise floor.