LM2878 Datasheet, PDF (1/8 Pages) National Semiconductor (TI) – LM2878 Dual 5 Watt Power Audio Amplifier

December 1994
LM2878 Dual 5 Watt Power Audio Amplifier
General Description
The LM2878 is a high voltage stereo power amplifier de-
signed to deliver 5W channel continuous into 8X loads The
amplifier is ideal for use with low regulation power supplies
due to the absolute maximum rating of 35V and its superior
power supply rejection The LM2878 is designed to operate
with a low number of external components and still provide
flexibility for use in stereo phonographs tape recorders and
AM-FM stereo receivers The flexibility of the LM2878 al-
lows it to be used as a power operational amplifier power
comparator or servo amplifier The LM2878 is internally
compensated for all gains greater than 10 and comes in an
11-lead single-in-line package (SIP) The package has been
redesigned resulting in the slightly degraded thermal char-
acteristics shown in the figure Device Dissipation vs Ambi-
ent Temperature
Features
Y _{Wide operating range 6V – 32V}
Y _{5W channel output}
Y _{60 dB ripple rejection output referred}
Y _{70 dB channel separation output referred}
Y _{Low crossover distortion}
Y _{AC short circuit protected}
Y _{Internal thermal shutdown}
Applications
Y _{Stereo phonographs}
Y _{AM-FM radio receivers}
Y _{Power op amp power comparator}
Y _{Servo amplifiers}
Typical Applications
Frequency Response
of Bass Tone Control
TL H 7934 – 2
TL H 7934 – 1
FIGURE 1 Stereo Phonograph Amplifier with Bass Tone Control
C1995 National Semiconductor Corporation TL H 7934
RRD-B30M115 Printed in U S A