SI8244

Si824x CLASS D AUDIO DRIVER Features   WI TH P R E C I S I O N D E AD - T I M E G E N E R A T O R 0.5 A peak output (Si8241)  4.0 A peak output (Si8244)   PWM input   High-precision linear programmable dead-time generator  0.4 ns to 1 µs   High latchup immunity >100 V/ns  Up to 1500 Vrms output-output isolation, supply voltage of ±750 V Input to output isolation for low noise (up to 2500 V) Up to 8 MHz operation Wide operating range –40 to +125 °C Transient immunity >45 kV/µs RoHS-compliant SOIC-16 narrow body Applications  Class D audio amplifiers Ordering Information: See page 25. Description Pin Assignments The Si824x isolated driver family combines two isolated drivers in a single package. The Si8241/44 are high-side/low-side drivers specifically targeted at high-power (>30 W) audio applications. Versions with peak output currents of 0.5 A (Si8241) and 4.0 A (Si8244) are available. All drivers operate with a maximum supply voltage of 24 V. Based on Silicon Labs' proprietary isolation technology, the Si824x audio drivers incorporate input-to-output and output-to-output isolation, which enables leveltranslation of signals without additional external circuits as well as use of bipolar supply voltage up to ±750 V. The Si824x audio drivers feature an integrated deadtime generator that provides highly precise control for achieving optimal THD. These products also have overlap protection that safeguards against shootthrough current damage. The CMOS-ba...