LM1876 Datasheet | National Semiconductor

LM1876 Overture™ Audio Power Amplifier Series Dual 20W Audio Power Amplifier with Mute and Standby Modes February 1998 LM1876 Overture™ Audio Power Amplifier Series Dual 20W Audio Power Amplifier with Mute and Standby Modes General Description The LM1876 is a stereo audio amplifier capable of delivering typically 20W per channel of continuous average output power into a 4Ω or 8Ω load with less than 0.1% (THD + N). Each amplifier has an independent smooth transition fade-in/ out mute and a power conserving standby mode which can be controlled by external logic. The performance of the LM1876, utilizing its Self Peak Instantaneous Temperature (˚Ke) (SPi Ke™) Protection Circuitry, places it in a class above discrete and hybrid amplifiers by providing an inherently, dynamically protected Safe Operating Area (SOA). SPi Ke Protection means that these parts are safeguarded at the output against overvoltage, undervoltage, overloads, including thermal runaway and instantaneous temperature peaks. Key Specifications j j j THD+N at 1 k Hz at 2 x 15W continuous average output power into 4Ω or 8Ω: THD+N at 1 k Hz at continuous average output power of 2 x 20W into 8Ω: Standby current: 0.009% (typ) 4.2 m A (typ) 0.1% (max) Features n n n n n n SPi Ke Protection Minimal amount of external ponents necessary Quiet fade-in/out mute mode Standby-mode Isolated 15-lead TO-220 package Non-Isolated 15-lead TO-220 package Applications n High-end stereo TVs n ponent stereo n pact stereo Typical Application Connection Diagram Plastic Package DS012072-2 DS012072-1 FIGURE 1. Typical Audio Amplifier Application Circuit Note: Numbers in parentheses represent pinout for amplifier B. - Optional ponent dependent upon specific design requirements. Top View Isolated Package Order Number LM1876TF See NS Package Number TF15B Non-Isolated Package Order Number LM1876T See NS Package Number TA15A SPi Ke™ Protection and Overture™ are trademarks of National Semiconductor Corporation. © 1999...