LM2876 40W audio power amplifier circuit design

Subscribe by email

this 40W audio power amplifier circuit is designed using the LM2876 audio power amplifier ic capable of delivering 40W of continuous average power to an 8Ω load with 0.1% THD+N from 20Hz–20kHz.
The LM2876 40W audio power amplifier circuit operates over a wide input voltage range , from 20 up to 70 volts , but typically a dual 30 volt power supply ( or a single 60 volt in this case ) will be work fine .
The LM2876 maintains an excellent signal-to-noise ratio of greater than 95dB (min) with a typical low noise floor of 2.0μV.
The muting function of the LM2876 allows the user to mute the music going into the amplifier by drawing less than 0.5 mA out of pin 8 of the device.
The LM2876 contains overvoltage protection circuitry that limits the output current to approximately 4Apeak while also providing voltage clamping, though not through internal clamping diodes.
The LM2876 has a sophisticated thermal protection scheme to prevent long-term thermal stress to the device. When the temperature on the die reaches 165°C, the LM2876 shuts down. It starts operating again when the die temperature drops to about 155°C

Circuit Diagram: 
LM2876 40W audio power amplifier circuit design schematic

Comments

Post new comment

The content of this field is kept private and will not be shown publicly.
CAPTCHA
This question is for testing whether you are a human visitor and to prevent automated spam submissions.
Image CAPTCHA
Enter the characters shown in the image.

Circuit Diagram
UM3561 alarm systems circuit design UM3561 alarm systems circuit design

Using the UM3561 integrated circuit can be designed various alarm systems using few electronic...

LM387 dynamic microphone preamplifier circuit LM387 dynamic microphone preamplifier circuit

A dynamic microphone preamplifier circuit can be made using LM387 dual operational amplifier...

TDA8920BTH 200 watts d class amplifier circuit diagram

This high power 200 watts amplifier circuit electronic project is designed using the TDA8920BTH...

TDA1519 audio amplifier circuit diagram project TDA1519 audio amplifier circuit diagram project

This audio amplifier circuit is based on the TDA1519 amplifier ic which can be used in audio...

TDA7496 2x5 watts stereo class AB audio amplifier circuit TDA7496 2x5 watts stereo class AB audio amplifier circuit

This class AB audio amplifier circuit from this schematic is a stereo 5+5W class AB power...

TDA7241 car audio power amplifier circuit TDA7241 car audio power amplifier circuit

This car audio power amplifier circuit is designed using the TDA7241 circuit manufactured by SGS...

Electronic siren using LM389 IC electronic siren circuit using LM389 IC

This electronic siren circuit is designed using LM389 chip. With transistors T1 and T2 was built...

LM383 16 watt audio amplifier

This LM383 audio amplifier circuit diagram electronic project is capable to deliver up to 16...

Tone control circuit using LM4562 ic

This tone control circuit is designed using few common components and the LM4562 ultra-low...