LME49811 Datasheet | National Semiconductor

Description The LME49811 is a high fidelity audio power amplifier input stage designed for demanding consumer and pro-audio applications. Amplifier output power may be scaled by changing the supply voltage and number of output devices. The LME49811 is capable of driving an output stage to deliver in excess of 500 watts single-ended into an 8 ohm load in the presence of 10% high line headroom and 20% supply regulation. The LME49811 includes thermal shut down circuitry that activates when the die temperature exceeds 150°C. The LME49811's shutdown function when activated, forces the LME49811 into shutdown state. Key Specifications -  Wide operating voltage range -  PSRR (f = DC) -  THD+N (f = 1k Hz) -  Output Drive Current ±20V to ±100V 115d B (typ) 0.00035% (typ) 9m A Features - - - - - Very high voltage operation Scalable output power Minimum external ponents External pensation Thermal Shutdown Applications - - - - - - Powered subwoofers Pro audio Powered studio monitors Audio video receivers Guitar Amplifiers High voltage industrial applications Typical Application FIGURE 1. Typical Audio Amplifier Application Circuit Overture® is a registered trademark of National Semiconductor Corporation. © 2009 National Semiconductor Corporation .national. .. Typical Audio Amplifier Application Circuit .national. Connection Diagram .. Top View See Order Number LME49811TB NS = National Logo U = Fabrication plant code Z = Assembly plant code XY = 2 Digit date code TT = Die traceability TB = Package code Pin Descriptions Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Pin Name NC SD GND IN+ INp NC NC NC -VEE NC NC Sink Source +VCC Shutdown Control Device Ground Non-Inverting Input Inverting Input External pensation Connection No Connect, Pin electrically isolated No Connect, Pin electrically isolated No Connect, Pin electrically isolated Negative Power Supply No Connect, Pin electrically isolated No Connect, Pin...