LM4873MTE/NOPB

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LM4873MTE/NOPB is one of the best audio amplifiers in the linear category. This amplifier is a single-supply, bridged audio power amplifier with PowerBoost, designed to drive a 4Ω load at up to 1.5A. It is designed to deliver excellent quality audio performance and fast turn-on time. This amplifier is the perfect choice for applications requiring high output power and a small form-factor.

The LM4873MTE/NOPB is a Class D amplifier, which provides improved efficiency and reliability compared to traditional Class AB amplifiers. This is achieved by using pulse width modulation (PWM) to switch between high and low states. The PWM technique used in the LM4873MTE/NOPB ensures that each output device is always in either the high or low state, resulting in better efficiency, improved power output and improved thermal performance.

The LM4873MTE/NOPB also comes with a built-in power boost circuit that allows the amplifier to deliver up to 3x its rated power output for short durations. The power boost circuit can be used to drive low impedance loads like headphones or to drive speakers that require more power. The power boost circuit is also adjustable, allowing for fine tuning of the performance of the amplifier.

The LM4873MTE/NOPB also has a comprehensive system of protection features. These include over-temperature protection, DC protection, output short circuit protection and reverse voltage protection. These features ensure that the LM4873MTE/NOPB remains reliable and problem-free under a wide range of operating conditions.

The LM4873MTE/NOPB has a wide range of application areas. These include portable and home audio systems, powered speakers, car audio systems, broadcast and professional audio systems, and theatrical amplifiers. This amplifier can be used in applications such as power speakers, portable amplifiers, subwoofers, car amplifiers and home theater applications.

The working principle behind the LM4873MTE/NOPB is simple and straightforward. When an input signal is applied, an AC current is produced in the speaker coils. This current is converted to a DC current by the power supply stage. This DC current is then amplified by the output stage and fed to the speaker coils. The amplified signal produces a corresponding sound from the speaker.

In summary, the LM4873MTE/NOPB is a high-performance, single-supply, bridged audio power amplifier with PowerBoost, designed to drive a 4Ω speaker load at up to 1.5A. It is a Class D amplifier with improved efficiency and reliability and features a built-in power boost circuit that can deliver up to 3x the rated power output. It has a wide range of application areas, including portable and home audio systems, powered speakers, car audio systems, broadcast and professional audio systems, and theatrical amplifiers. The working principle behind the LM4873MTE/NOPB is simple and is based on the conversion of AC to DC current and the subsequent amplification of the DC current by the output stage.

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