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LM2878P-LM2878P.
LM2878 Dual 5 Watt Power Audio Amplifier
TL/H/7934
LM2878
Dual
Watt
Power
Audio
Amplifier
December 1994
LM2878 Dual5 Watt Power Audio Amplifier
General Description
The LM2878isa high voltage stereo power amplifierde-
signedto deliver 5W/channel continuousinto8X loads.The
amplifieris idealforuse withlow regulation power supplies
duetothe absolute maximum ratingof35Vandits superior
power supply rejection.The LM2878is designedto operate
withalow numberof external components,andstill provide
flexibilityforusein stereo phonographs, taperecorders,and
AM-FM stereo receivers. The flexibilityofthe LM2878al-
lowsittobe usedasa power operational amplifier, power
comparatoror servo amplifier. The LM2878is internally
compensatedforall gains greater than10,and comesinan
11-lead single-in-line package (SIP).The packagehas been
redesigned, resultinginthe slightly degraded thermal char-
acteristics showninthe figure Device Dissipationvs Ambi-
ent Temperature.
Features Wide operating range 6V–32V 5W/channel output60dB ripple rejection, output referred70dB channel separation, output referred Low crossover distortionAC short circuit protected Internal thermal shutdown
Applications Stereo phonographs AM-FM radio receivers Powerop amp, power comparator Servo amplifiers
Typical Applications
TL/H/7934–1
ofBassTone Control
Frequency Response
TL/H/7934–2
FIGURE1. Stereo Phonograph Amplifier withBassToneControl
C1995National SemiconductorCorporation RRD-B30M115/PrintedinU.S.A.
