LM1877 audio power amplifier

LM1877 is a monolithic dual power amplifier designed to deliver 2W/channel continuous into 8 Ω loads. The LM1877 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, etc.

Each power amplifier is biased from a common internal regulator to provide high power supply rejection, and output Q point centering. The LM1877 is internally compensated for all gains greater than 10.

LM1877 stereo amplifier circuit diagram

LM1877 Non-Inverting amplifier using split supply

LM1877 applications

• Multi-channel audio systems
• Stereo phonographs
• Tape recorders and players
• AM-FM radio receivers
• Servo amplifiers
• Intercom systems
• Automotive products

LM 1877 features

• 2W/channel
• −65 dB ripple rejection, output referred
• −65 dB channel separation, output referred
• Wide supply range, 6V–24V
• Very low cross-over distortion
• Low audio band noise
• AC short circuit protected
• Internal thermal shutdown

LM1877 connection diagram and pdf datasheet

Download LM1877 pdf datasheet