LM3886

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SNAS091C – MAY 1999 – REVISED MARCH 2013

LM3886 Overture™ Audio Power Amplifier Series

High-Performance 68W Audio Power Amplifier w/Mute

Check for Samples: LM3886

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FEATURES

DESCRIPTION

The LM3886 is a high-performance audio power

23

•

68W Cont. Avg. Output Power into 4

amplifier capable of delivering 68W of continuous

±28V

average power to a 4

Ω load and 38W into 8Ω with

•

38W Cont. Avg. Output Power into 8

0.1% THD+N from 20Hz–20kHz.

±28V

The performance of the LM3886, utilizing its Self

•

50W Cont. Avg. Output Power into 8

Peak

Instantaneous

Temperature

(°Ke)

(SPiKe)

±35V

protection circuitry, puts it in a class above discrete

•

135W Instantaneous Peak Output Power

and hybrid amplifiers by providing an inherently,

Capability

dynamically protected Safe Operating Area (SOA).

SPiKe

protection

means

that

these

parts

are

•

Signal-to-Noise Ratio

≥ 92dB

completely

safeguarded

at

the

output

against

•

An Input Mute Function

overvoltage, undervoltage, overloads, including shorts

•

Output Protection from a Short to Ground or

to the supplies, thermal runaway, and instantaneous

temperature peaks.

to the Supplies via Internal Current Limiting

Circuitry

The LM3886 maintains an excellent signal-to-noise

•

Output Over-Voltage Protection against

ratio of greater than 92dB with a typical low noise

Transients from Inductive Loads

floor of 2.0µV. It exhibits extremely low THD+N

values of 0.03% at the rated output into the rated

•

Supply Under-Voltage Protection, not Allowing

load over the audio spectrum, and provides excellent

linearity with an IMD (SMPTE) typical rating of

12V, thus Eliminating Turn-On and Turn-Off

0.004%.

Transients

•

11-Lead TO-220 Package

•

Wide Supply Range 20V - 94V

APPLICATIONS

•

Component stereo

•

Compact stereo

•

Self-powered speakers

•

Surround-sound amplifiers

•

High-end stereo TVs

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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

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Overture is a trademark of dcl_owner.

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All other trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 1999–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.