IR43x2 Features Product Summary 2 channel integrated analog input Class D audio amplifier in a small 7 x 7 mm PQFN44 package Half-Bridge, Topology No mechanical heatsink required Full-Bridge High peak music power output 130 W/ 4 IR4302 Output power Split or single power supply (Typical, THD+N=10%) 100 W/ 3 Differential or single-ended input Over-current, over-temperature and under 100 W/ 4 IR4322 Output power voltage protections with self-reset feature (Typical, THD+N=10%) 100 W/ 2 Start/stop click noise reduction Clip and Fault reporting outputs 35 W/ 4 IR4312 Output power High noise immunity (Typical, THD+N=10%) 40 W/ 3 RoHS compliant *Residual noise 250 Vrms (AES-17, IHF-A, typical) *THD+N 0.02 % Typical Applications (1kHz, 1W, 4 , typical) Home theatre systems Docking station audio systems * In typical application example PC audio systems Musical instruments Package Karaoke amplifiers Game consoles Powered speaker systems General purpose audio power amplifiers 7x7mm PQFN44L Typical Connection 1 www.irf.com 2013 International Rectifier Apr 3, 2013 IR43x2 Table of Contents Page Typical Connection Diagram 1 Qualification Information 4 Absolute Maximum Ratings 5 Recommended Operating Conditions 7 Electrical Characteristics 8 Functional Block Diagram 11 Input/Output Pin Equivalent Circuit Diagram 12 Lead Definitions 14 Lead Assignments 15 Package Details 16 Part Marking Information 17 Ordering Information 17 2 www.irf.com 2013 International Rectifier Apr 3, 2013