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LM2878 Datasheet

  • LM2878

  • National Semiconductor [LM2878 Dual 5 Watt Power Audio Ampl...

  • NSC

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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
Y
Y
Y
Y
Y
Y
Wide operating range 6V鈥?32V
5W channel output
60 dB ripple rejection output referred
70 dB channel separation output referred
Low crossover distortion
AC short circuit protected
Internal thermal shutdown
Applications
Y
Y
Y
Y
Stereo phonographs
AM-FM radio receivers
Power op amp power comparator
Servo amplifiers
Typical Applications
Frequency Response
of Bass Tone Control
TL H 7934 鈥?2
TL H 7934 鈥?1
FIGURE 1 Stereo Phonograph Amplifier with Bass Tone Control
C
1995 National Semiconductor Corporation
TL H 7934
RRD-B30M115 Printed in U S A

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