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 V_CC = ±28V
•	38W cont. avg. output power into 8 at V_CC = ±28V
•	50W cont. avg. output power into 8 at V_CC = ±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 \|V_EE\| + \|V_CC\| <= 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.

Applications

•	Component stereo
•	Compact stereo
•	Self-powered speakers
•	Surround-sound amplifiers
•	High-end stereo TVs

Typical Application

click for larger image

Parametric Table expand

Parametric Table collapse

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

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

View Using Catalog

Typical Performance

*click for larger image

Also Recommended

LM4780

Stereo Or Mono

Additional Resources

Design Tools (see below)

Application Notes (see below)

Connection Diagram

click for larger image

Datasheet

RoHS Compliance Information	Size in Kbytes	Date
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

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Package Availability, Models, Samples & Pricing

Part Number

Package

Factory Lead Time

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking
Format

Type

Pins

Spec.

MSL
Rating

Peak
Reflow

RoHS
Report

CAD
Symbols

Weeks

Qty

$US each

LM3886T

TO-220

STD

NOPB

RoHS

Download

Full production

N/A

1K+

$4.00

rail
of
20

NSUZXYTTE#
LM3886T

6 weeks

2500

LM3886TF

ISOLATED TO220

STD

NOPB

RoHS

Download

Full production

N/A

1K+

$4.00

rail
of
20

NSUZXYTTE#
LM3886TF

6 weeks

500

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)
LM3886T	HV700	0	13580	0	0	1222500	3	346887713
LM3886TF	HV700	0	13580	0	0	1222500	3	346887713

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

Title	Size in Kbytes	Date
Amplifiers Selection Guide software for Windows	8 Kbytes	6-Mar-2007	View

If you have trouble printing or viewing PDF file(s), see Printing Problems.

Application Notes

Title	Size in Kbytes	Date
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

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More Application Notes

Title	Size in Kbytes	Date
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	608 Kbytes	30-Jan-08	Download

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[Information as of 3-Jul-2009]