LA4440 PDF – 6W, 2-Ch, Bridge 19W type Power Amplifier

What is LA4440?

This is an integrated circuit (IC) audio amplifier that is widely used in various electronic projects, especially in audio systems.

The Part Number is LA4440.

The function of this semiconductor is 6W 2-Channel / Bridge 19W typ Power Amplifier.

Manufacturer: Sanyo

Preview images :

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LA4440 pinout sanyo


It has a wide range of applications, including in car audio systems, home theater systems, and portable audio players.

This IC contains two amplifiers, which can be used either as a stereo amplifier or as a bridged amplifier. In stereo mode, each amplifier drives one speaker, while in bridged mode, both amplifiers are combined to drive a single speaker.

LA4440 has various built-in protection features, including overcurrent protection, thermal shutdown, and short circuit protection. It also has a low distortion and a high signal-to-noise ratio, making it an ideal choice for high-quality audio applications.


• Built-in 2 channels (dual) enabling use in stereo and bridge amplifier applications.

(1) Dual : 6W×2 (typ.)

(2) Bridge : 19W (typ.)

• Minimun number of external parts required.

• Small pop noise at the time of power supply ON/OFF and good starting balance.

• Good ripple rejection : 46dB (typ.)

• Good channel separation.

• Small residual noise (Rg=0).

• Low distortion over a wide range from low frequencies to high frequencies.

• Easy to design radiator fin.

• Built-in audio muting function.

• Built-in protectors.

(a) Thermal protector

(b) Overvoltage, surge voltage protector

(c) Pin-to-pin short protector

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LA4440 amplifier circuit diagram

LA4440 PDF Datasheet

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