IRS20957SPBF

March 5, 2009 Datasheet No PD97381 IRS20957S Protected Digital Audio Driver Features Product Summary Floating PWM input enables easy half bridge Topology Half-Bridge implementation Programmable bidirectional over-current protection with V +/- 100 V OFFSET (max) self-reset function I & I (typical) 1.0 A & 1.2 A Programmable preset dead-time for improved THD O+ O- performances Selectable deadtime 15/25/35/80ns High noise immunity 100V ratings deliver up to 500W in output power Ton & toff (typical) 95ns & 80ns 3.3 V/ 5 V logic compatible input Operates up to 800kHz OC protection delay 500ns (max) Shutdown 250ns (max) propagation delay Typical Applications Home theatre systems Package Mini component stereo systems Powered speaker systems General purpose audio power amplifiers Typical Connection Diagram Note: Please refer to Lead Assignments for correct pin configuration. This diagram shows electrical connections only. www.irf.com 2008 International Rectifier 1 IRS20957S Table of Contents Page Description 3 Qualification Information 4 Absolute Maximum Ratings 5 Recommended Operating Conditions 6 Electrical Characteristics 7 Functional Block Diagram 9 Input/Output Pin Equivalent Circuit Diagram 10 Lead Definitions 11 Lead Assignments 11 Waveform definitions 12 Application information and additional information 12 Package Details 13 Tape and Reel Details 14 Part Marking Information 15 Ordering Information 16 www.irf.com 2008 International Rectifier 2