Features • 68W cont. avg. output power into 4 at VCC = ±28V • 38W cont. avg. output power into 8 at VCC = ±28V • 50W cont. avg. output power into 8 at VCC = ±35V • 135W instantaneous peak output power capability • Signal-to-Noise Ratio >= 92dB • 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 |VEE| + |VCC| <= 12V, thus eliminating turn-on and turn-off transients • 11-lead TO-220 package • Wide supply range 20V - 94V Description The LM3886 is a high-performance audio power amplifier capable of delivering 68W of continuous average power to a 4 load and 38W into 8 with 0.1% THD+N from 20Hz-20kHz. 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 92dB with a typical low noise floor of 2.0µV. It exhibits extremely low THD+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%. Applications • Component stereo • Compact stereo • Self-powered speakers • Surround-sound amplifiers • High-end stereo TVs

Also Recommended LM4780 Stereo Or Mono MY BRIEFCASE                                       Click any "Briefcase" icon to add an item

Typical Application click for larger image	Connection Diagram click for larger image
Typical Performance *click for larger image

Datasheet

Title		Size	Date	Other Language
	LM3886 Overture Audio Power Amplifier Series High-Performance 68W Audio Power Amplifier w/Mute	852 Kbytes	29-Oct-03	日本語

Featured Application Notes

Title		Size	Date	Other Language
	AN-1192: Application Note 1192 Overture™ Series High Power Solutions	548 Kbytes	15-Jun-04
	AN-898: Application Note 898 Audio Amplifiers Utilizing: SPiKe Protection	1412 Kbytes	20-Sep-02	日本語

More Application Notes

Title		Size	Date	Other Language
	AN-1677: Application Note 1677 LM1771 and LM3880 Based FPGA Power Supply Reference Design	177 Kbytes	14-Jan-08
	AN-1603: Application Note 1603 LM274X Reference Designs	431 Kbytes	6-Dec-07	中文
	AN-1491: Application Note 1491 LM3880 Power Sequencer Demo Board	1703 Kbytes	30-Nov-06
	AN-1785: Application Note 1785 LM3881 Power Sequencer Evaluation Board	614 Kbytes	27-Aug-09

Design Tools

Title	Size	Date
Amplifiers Selection Guide software for Windows

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM3886T	HV700	0	13850	0	0	1492500	3	423500950
LM3886TF	HV700	0	13850	0	0	1492500	3	423500950

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

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