IRS20954S

www.DataSheet4U.com Data Sheet No. PD60276 IRS20954S Protected Digital Audio Driver Features Floating PWM input enables easy half bridge implementation Integrated programmable bi-directional over-current protection with self-reset function Programmable compensated preset deadtime for improved THD performances High noise immunity ±100 V high voltage ratings deliver up to 500 W output power 3.3 V / 5 V logic compatible input Operates up to 800 kHz RoHS compliant Product Summary VOFFSET (max) Io+ Gate driver Selectable Deadtime Propagation delay OC protection delay Io - ± 100 V 1.0 A 1.2 A 15 ns, 25 ns, 35 ns, 45 ns 90 ns 1 µs (max) Description The IRS20954 is a high voltage, high speed MOSFET driver with floating PWM input, specially designed for Class D audio amplifier applications. The bi-directional current sensing requires no external shunt resistors. It can capture over-current conditions at either positive or negative load current direction. A built-in control block provides secure protection sequence against over-current conditions, including a programmable reset timer. The internal deadtime generation block provides accurate gate switch timing and enables optimum deadtime settings for better audio performances, such as THD and audio noise floor. Package 16-Lead SOIC (narrow body) Typical Connection IRS 20954 S VDD CSD IN PWM VSS NC VREF CSH VB HO VS NC VCC LO COM Vcc 12 V Speaker +B (Please refer to Lead Assignments for correct pin configuration...