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la4440 stereo amplifier circuit

LA4440 Stereo Amplifier

LA4440 is a two channel audio power amplifier IC with inbuilt in dual channels enables it for stereo and bridge amplifier applications. In dual mode it gives 6 W per channel and in bridge mode 19 W output.

It has good ripple rejection of 46dB, small residual noise, built in over voltage and surge voltage protection etc. ideal feature of the IC is its pin-to-pin protection. Here LA4440 is wired in Stereo configuration using both inputs and outputs.

Features of LA4440

  • Built in two channels to use as Mono and Stereo
  • Dual mode 6W x 2 and Bridge mode 19W
  • 46 dB Ripple rejection
  • 18V Max. Power handling and 12V typical
  • Good channel separation and low distortion
  • Built in Audio Muting function and Pin-to-Pin protection
  • Surge protection circuitry

Schematic of the LA4440 Stereo Amplifier Circuit

la4440 stereo amplifier circuit

Assembled LA4440 Amplifier

77 Comments

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  • gokuldeep

    hi sir i am using double ic4440 stereo amplifier ……
    how to convert 2.1 amplifier ……any board are available for base……please guide me sir…………

  • Garrison44

    Excuse me sir, can i use 47k on both side instead of 22k???

  • tukuna dangua

    it is good for online learner(me)

  • debranjan-roy01gmail-com

    LA4440 vs CD4440.. What are the differences between these two IC’s.. How much does the sound quality differs?

    I’ve heard that CD4440 is a chinese made version of 4440 IC(Don’t know what actually is)…
    Now CD4440 ICs are comparatively cheap in price & available everywhere but LA4440 is somehow hard to find & more costly.. I’d like to know what are the basic differences between them and how much does the sound quality matters in “LA4440” vs “CD4440” while using Dual IC in bridge mode. . .

  • PRODIP DEBNATH

    Nice diagram i am like that

  • sophea sok

    i want to know how to make a good amplifier stereo that used IC LA 4440

  • BABAI

    here is a LA4440 stereo amplifier circuit with tone control i drawn 4 years ago,hope you people like this.

  • achal

    well talking about bass n treble circuit
    i just made an bass n treble circuit using ic lm 324
    its littil hard to assemble but once its done then u will able to shake your home stuffs

    i used three lm 324 ic and two 4.7 k ohms resistors for voltage divider biasinig for all ic s
    15k ohms n 10 k ohms and polyster capacitors for selecting frequency band to amplify or attenute
    u can mail me for circuit diagram

    • Manish (Ranchi, Jharkhand)

      Please send me the LM 324 bass treble circuit I am working hard but not getting success please guide me
      thanks I am waiting for your nice reply

  • sonam

    New 4440 audio daygram image send my email

  • Nanthagopalan a n

    sir,
    i am working this project succesfully using 12-0 3amp transformer get good result

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