TLH7933

February 1995

LM2877 Dual 4W Audio Power Amplifier

General Description

The LM2877 is a monolithic dual power amplifier designed

to deliver 4Wchannel continuous into 8X loads

The

LM2877 is designed to operate with a low number of exter-

nal components and still provide flexibility for use in stereo

phonographs tape recorders and AM-FM stereo receivers

etc Each power amplifier is biased from a common internal

regulator to provide high power supply rejection and output

Q point centering The LM2877 is internally compensated

for all gains greater than 10 and comes in an 11-lead sin-

gle-in-line package

Features

Y

4Wchannel

Y

b

68 dB ripple rejection output referred

Y

b

70 dB channel separation output referred

Y

Wide supply range 6-24V

Y

Very low cross-over distortion

Y

Low audio band noise

Y

AC short circuit protected

Y

Internal thermal shutdown

Applications

Y

Multi-channel audio systems

Y

Stereo phonographs

Y

Tape recorders and players

Y

AM-FM radio receivers

Y

Servo amplifiers

Y

Intercom systems

Y

Automotive products

Connection Diagram

(Single-In-Line Package)

TLH7933 – 1

Top View

Order Number LM2877P

See NS Package Number P11A

Pin 6 must be connected to GND

C1995 National Semiconductor Corporation

RRD-B30M75Printed in U S A