LM2877 Dual 4W Audio Power Amplifier
February 1995
LM2877 Dual 4W Audio Power Amplifier
General Description
The LM2877 is a monolithic dual power amplifier designed
to deliver 4W channel 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
Y
Y
Y
Y
Y
Wide supply range 6-24V
Very low cross-over distortion
Low audio band noise
AC short circuit protected
Internal thermal shutdown
Applications
Y
Y
Y
Features
Y
Y
Y
Y
Y
Y
Y
4W channel
b
68 dB ripple rejection output referred
b
70 dB channel separation output referred
Multi-channel audio systems
Stereo phonographs
Tape recorders and players
AM-FM radio receivers
Servo amplifiers
Intercom systems
Automotive products
Connection Diagram
(Single-In-Line Package)
TL H 7933 鈥?1
Top View
Order Number LM2877P
See NS Package Number P11A
Pin 6 must be connected to GND
C
1995 National Semiconductor Corporation
TL H 7933
RRD-B30M75 Printed in U S A