LM3886 - High-Performance 68W Audio Power Amplifier with Mute
Datasheet Packaging Samples & Pricing Reliability Design Tools Application Notes Knowledge Base

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

General 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). More...


Applications

•Component stereo
•Compact stereo
•Self-powered speakers
•Surround-sound amplifiers
•High-end stereo TVs
  Typical Application
click for larger image


ParametersValues
Output Current 11500 mA
Offset Voltage max, 25C 10 mV
Gain Bandwidth 3 MHz
Supply Min 18 Volt
Supply Max 84 Volt
Supply Current Per Channel 50 mA
PowerWise Rating 2 16666.7 uA/MHz
Slew Rate 19 Volts/usec
Input OutputType Not Rail to Rail
Max Input Bias Current 1000 nA
Shut down No
Special Features AvCl>10
Function Op Amp
Channels 1 Channels
Temperature Min 0 deg C
Temperature Max 70 deg C


Typical Performance

*click for larger image


  Also Recommended
LM4780Stereo Or Mono
Additional Resources
Design Tools

Application Notes


Connection Diagram

click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LM3886 Overture Audio Power Amplifier Series High-Performance 68W Audio Power Amplifier w/Mute 852
Kbytes		 29-Oct-03 Download
LM3886 Overture Audio Power Amplifier Series High-Performance 68W Audio Power Amplifier w/Mute (Japanese)
 886 Kbytes   Download

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Package Availability, Models, Samples & Pricing
Part NumberPackageFactory Lead TimeModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
Format
TypePinsSpec.MSL
Rating		Peak
Reflow		RoHS
Report		CAD
Symbols		WeeksQtyQty$US each
LM3886TTO-22011NOPB
STD		1
1		NA
NA		RoHS Download Full productionN/A
Samples
Buy Now 		1K+$3.43rail
of
20		NSUZXYTTE#
LM3886T
6 weeks3000
LM3886TFISOLATED TO22011NOPB
STD		1
1		NA
NA		RoHS Download Full productionN/A
Samples
Buy Now 		1K+$3.43rail
of
20		NSUZXYTTE#
LM3886TF
6 weeks500

General 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%.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM3886THV7000138500014925003423500950
LM3886TFHV7000138500014925003423500950

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.

For more information on Reliability Metrics, please click here.


Design Tools

TitleSize in Kbytes Date Click link below to Download    
Amplifiers Selection Guide software for Windows     View    

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Application Notes

TitleSize in Kbytes Date Click link below to Download
AN-1192: Application Note 1192 Overture™ Series High Power Solutions 548
Kbytes		 15-Jun-04 Download
AN-898: Application Note 898 Audio Amplifiers Utilizing: SPiKe Protection 1412
Kbytes		 20-Sep-02 Download
AN-898 (Japanese): Application Note 898 Audio Amplifiers Utilizing: SPiKe Protection
 249 Kbytes   Download

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More Application Notes

TitleSize in Kbytes Date Click link below to Download
AN-1677: Application Note 1677 LM1771 and LM3880 Based FPGA Power Supply Reference Design 177
Kbytes		 14-Jan-08 Download
AN-1603: Application Note 1603 LM274X Reference Designs 431
Kbytes		 6-Dec-07 Download
AN-1603 (Chinese): Application Note 1603 LM274X Reference Designs
 482 Kbytes  
AN-1491: Application Note 1491 LM3880 Power Sequencer Demo Board 1703
Kbytes		 30-Nov-06 Download
AN-1785: Application Note 1785 LM3881 Power Sequencer Evaluation Board 614
Kbytes		 27-Aug-09 Download

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[Information as of 7-Nov-2009]