LM1877

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Dual Audio Power Amplifier

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Product details

Parameters

Audio input type Analog Input Architecture Class-AB Speaker channels (Max) Stereo Power stage supply (Max) (V) 24 Power stage supply (Min) (V) 6 Load (Min) (ohms) 4 Output power (W) 11 THD + N @ 1 kHz (%) 0.055 Iq (Typ) (mA) 12.5 Control interface Hardware Closed/open loop Open Analog supply (Min) (V) 6 Analog supply (Max) (V) 24 PSRR (dB) 65 Operating temperature range (C) 0 to 70 open-in-new Find other Speaker amps

Package | Pins | Size

SOIC (NPA) 14 93 mm² 8.9915 x 10.325 open-in-new Find other Speaker amps

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

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Description

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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Technical documentation

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Type Title Date
* Datasheet LM1877 Dual Audio Power Amplifier datasheet (Rev. B) Apr. 03, 2013
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) Aug. 26, 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) Jun. 27, 2019

Design & development

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SOIC (NPA) 14 View options

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