LM4766 Datasheet | National Semiconductor

Description The LM4766 is a stereo audio amplifier capable of delivering typically 40W per channel of continuous average output power into an 8Ω load with less than 0.1% (THD + N). The performance of the LM4766, 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. Each amplifier within the LM4766 has an independent smooth transition fade-in/out mute that minimizes output pops. The IC’s extremely low noise floor at 2 µV and its extremely low THD + N value of 0.06% at the rated power make the LM4766 optimum for high-end stereo TVs or miniponent systems. Key Specifications j j THD+N at 1 k Hz at 2 x 30W continuous average output power into 8Ω: THD+N at 1 k Hz at continuous average output power of 2 x 30W into 8Ω: 0.009% (typ) 0.1% (max) Features n n n n SPi Ke Protection Minimal amount of external ponents necessary Quiet fade-in/out mute mode 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 DS100928-2 Top View Non-Isolated Package Order Number LM4766T See NS Package Number TA15A DS100928-1 FIGURE 1. Typical Audio Amplifier Application Circuit Note: Numbers in parentheses represent pinout for amplifier B. - Optional ponent dependent upon specific design requirements. SPi Ke™ Protection and Overture™ are trademarks of National Semiconductor Corporation. © 1999 National Semiconductor Corporation DS100928 .national. Absolute Maximum Ratings (Notes 4, 5) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications....