LM4879ITLX/NOPB

Product Overview

Category: Audio Amplifier
Use: LM4879ITLX/NOPB is a mono, bridged audio power amplifier that is designed to deliver 3W of continuous average power into a 3Ω load.
Characteristics: The LM4879ITLX/NOPB features low distortion, low noise, and minimal external components. It operates from a single 5V supply, making it ideal for portable electronic devices.
Package: The LM4879ITLX/NOPB is available in a tiny 8-pin MSOP package.
Essence: This audio amplifier is essential for applications requiring high-quality audio amplification in a compact form factor.
Packaging/Quantity: The LM4879ITLX/NOPB is typically sold in reels of 2500 units.

Specifications

Power Supply Voltage: 2.7V to 5.5V
Output Power: 3W (into 3Ω load)
Total Harmonic Distortion + Noise: 0.1% (at 1kHz, 1.4W)
Shutdown Current: 0.6μA (typical)

Detailed Pin Configuration

IN-: Non-inverting input
IN+: Inverting input
GND: Ground
VDD: Power supply
SHUTDOWN: Shutdown pin
BP: Bypass pin
OUT-: Output
OUT+: Output

Functional Features

The LM4879ITLX/NOPB offers low quiescent current, shutdown mode, and thermal shutdown protection. It also has a fixed gain of 6dB.

Advantages and Disadvantages

Advantages: - Low distortion and noise - Small package size - Wide operating voltage range

Disadvantages: - Limited output power compared to some higher-power amplifiers - Single-channel output limits stereo applications

Working Principles

The LM4879ITLX/NOPB operates as a bridge-tied load (BTL) amplifier, which allows for increased output power compared to a single-ended configuration. It uses a class-AB amplifier topology to achieve high efficiency while maintaining good audio fidelity.

Detailed Application Field Plans

The LM4879ITLX/NOPB is well-suited for use in portable audio devices, such as smartphones, tablets, portable speakers, and handheld gaming consoles. Its low power consumption and small form factor make it an excellent choice for battery-powered applications.

Detailed and Complete Alternative Models

LM4863: Dual 2.2W Audio Amplifier with Shutdown Mode
LM4880: 250mW Audio Power Amplifier
LM4893: Boomer® Audio Power Amplifier Series

In conclusion, the LM4879ITLX/NOPB is a versatile audio amplifier suitable for various portable electronic devices, offering high-quality audio amplification in a compact and efficient package.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací LM4879ITLX/NOPB v technických řešeních

Question: What is the maximum power output of LM4879ITLX/NOPB?
Answer: The LM4879ITLX/NOPB has a maximum power output of 3W into 3Ω.
Question: What is the input voltage range for LM4879ITLX/NOPB?
Answer: The input voltage range for LM4879ITLX/NOPB is 2.7V to 5.5V.
Question: Can LM4879ITLX/NOPB be used in portable audio applications?
Answer: Yes, LM4879ITLX/NOPB is suitable for portable audio applications due to its low power consumption and small footprint.
Question: Does LM4879ITLX/NOPB require external components for operation?
Answer: LM4879ITLX/NOPB requires minimal external components for operation, making it suitable for compact designs.
Question: What is the typical efficiency of LM4879ITLX/NOPB?
Answer: The typical efficiency of LM4879ITLX/NOPB is around 85% at 1W output power.
Question: Is thermal shutdown included in LM4879ITLX/NOPB?
Answer: Yes, LM4879ITLX/NOPB features thermal shutdown protection to prevent overheating.
Question: Can LM4879ITLX/NOPB drive a 4Ω speaker?
Answer: Yes, LM4879ITLX/NOPB can drive speakers with impedance as low as 4Ω.
Question: What is the quiescent current of LM4879ITLX/NOPB?
Answer: The quiescent current of LM4879ITLX/NOPB is typically 4mA.
Question: Does LM4879ITLX/NOPB support stereo audio output?
Answer: Yes, LM4879ITLX/NOPB can be configured to support stereo audio output.
Question: What are the key features of LM4879ITLX/NOPB?
Answer: The key features of LM4879ITLX/NOPB include low supply voltage operation, short-circuit and thermal protection, and minimal external components requirement.