National Semiconductor LM3886 free download

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LM3886 Overture Audio Power Amplifier Series High-Performance 68W Audio Power Amplifier w Mute April 1995 LM3886 Audio Power Amplifier Series High-Performance 68W Audio Power Amplifier w Mute General Description The LM3886 is a high-performance audio power amplifier capable of delivering 68W of continuous average power to a 4X load and 38W into 8X with 0 1% (THD a N) from 20 Hz ­ 20 kHz The performance of the LM3886 utilizing its Self Peak Instantaneous Temperature ( Ke) (SPiKe) Protection Circuitry puts it in a class above discrete and hybrid amplifiers by providing an inherently dynamically protected Safe Operating Area (SOA) SPiKe Protection means that these parts are completely safeguarded at the output against overvoltage undervoltage overloads including shorts to the supplies thermal runaway and instantaneous temperature peaks The LM3886 maintains an excellent Signal-to-Noise Ratio of greater than 92 dB with a typical low noise floor of 2 0 mV It exhibits extremely low (THD a N) values of 0 03% at the rated output into the rated load over the audio spectrum and provides excellent linearity with an IMD (SMPTE) typical rating of 0 004% Features Y Y Y Y Y Y Y Y Y Y 68W cont avg output power into 4X at VCC e g 28V 38W cont avg output power into 8X at VCC e g 28V 50W cont avg output power into 8X at VCC e g 35V 135W instantaneous peak output power capability Signal-to-Noise Ratio t 92 dB An input mute function Output protection from a short to ground or to the supplies via internal current limiting circuitry Output over-voltage protection against transients from inductive loads Supply under-voltage protection not allowing internal biasing to occur when lVEEl a lVCCl s 12V thus eliminating turn-on and turn-off transients 11-lead TO-220 package Applications Y Y Y Y Y Component stereo Compact stereo Self-powered speakers Surround-sound amplifiers High-end stereo TVs Typical Application Connection Diagram Plastic Package (Note 8) TL H 11833 ­ 2 Top View Order Number LM3886T or LM3886TF See NS Package Number TA11B for Staggered Lead Non-Isolated Package or TF11B for Staggered Lead Isolated Package Preliminary call you local National Sales Rep or distributor for availability TL H 11833 ­ 1 FIGURE 1 Typical Audio Amplifier Application Circuit Optional components dependent upon specific design requirements Refer to the External Components Description section for a component functional description OvertureTM and SPiKeTM Protection are trademarks of National Semiconductor Corporation C1995 National Semiconductor Corporation TL H 11833 RRD-B30M75 Printed in U S A Absolute Maximum Ratings (Notes 1 2) Soldering Information T Package (10 seconds) Storage Temperature Thermal Resistance iJC iJA 260 C b 40 C to a 150 C If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage lV a a Supply Voltage lV l a lV l (Input Signal) 84V