IRS20954SPBF Datasheet | International Rectifier

Features - Floating PWM input enables easy half bridge implementation - Integrated programmable bi-directional over-current protection with self-reset function - Programmable pensated 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 patible input - Operates up to 800 k Hz - Ro HS pliant Product Summary VOFFSET (max) Gate driver Selectable Deadtime Propagation delay OC protection delay Io+ Io - ± 100 V 1.0 A 1.2 A 15 ns, 25 ns, 35ns, 45 ns 90 ns 1 µs (max) Description The IRS2 0954 is a high voltage, high spe ed M OSFET drive r with floating PWM input, spe cially desi gned for Cla ss D au dio amplifier ap plications. The bi-di rectional cu rrent sensi ng requires no external shunt resistors. It can ca pture over-current conditions at either positive or negative load current direction. A built-in control block p rovides secure prote ction sequence against over-current conditions, including a programmable reset timer. The internal de adtime gen eration blo ck provide s accurate gat e swit ch timing and en ables optim um deadtime settings for b etter audio performances, such as T HD and a udio noise floor. Package Typical Connection IRS 20954 S VDD CSD IN PWM VSS NC VREF CSH VB HO VS NC VCC LO Vcc 12 V Speaker +B (Please refer to Lead Assignments for correct pin configuration. This diagram shows electrical connections only) OCSET DT -B .irf. 1 http://.. Not remended for new designs. Please use IRS20955. Absolute Maximum Ratings Absolute maxi mum ratings i ndicate sustai ned lim its be yond which da mage to the device may occur. All voltage parameters are absol ute volt ages refer enced to ; all currents are d efined positiv e into an y l ead. The thermal resistance and power dissipation ratings are measured under board mounted and still air conditions. Symbol Definition VB VS VHO VCSH VCC VLO VDD VSS VIN VCSD VDT VREF IDDZ ICCZ IBSZ IOREF d...