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LM1877

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2-W, stereo, 6- to 24-V, analog input Class-AB audio amplifier

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Data sheet

LM1877

ACTIVE
Data sheet Order now

Product details

Audio input type Analog Input Architecture Class-AB Speaker channels (max) Stereo Rating Catalog Power stage supply (max) (V) 24 Power stage supply (min) (V) 6 Load (min) (Ω) 4 Output power (W) 11 THD + N at 1 kHz (%) 0.055 Iq (typ) (mA) 12.5 Control interface Hardware Closed/open loop Open Analog supply (min) (V) 6 Analog supply voltage (max) (V) 24 PSRR (dB) 65 Operating temperature range (°C) 0 to 70
Audio input type Analog Input Architecture Class-AB Speaker channels (max) Stereo Rating Catalog Power stage supply (max) (V) 24 Power stage supply (min) (V) 6 Load (min) (Ω) 4 Output power (W) 11 THD + N at 1 kHz (%) 0.055 Iq (typ) (mA) 12.5 Control interface Hardware Closed/open loop Open Analog supply (min) (V) 6 Analog supply voltage (max) (V) 24 PSRR (dB) 65 Operating temperature range (°C) 0 to 70
SOIC (NPA) 14 92.8372375 mm² 8.9915 x 10.325
  • 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

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  • 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

All trademarks are the property of their respective owners.

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

The LM1877 is a monolithic dual power amplifier designed to deliver 2W/channel continuous into 8Ω 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. 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.
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Type Title Date
* Data sheet LM1877 Dual Audio Power Amplifier datasheet (Rev. B) 03 Apr 2013
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 26 Aug 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 27 Jun 2019

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