LM4910LQ/NOPB

Product Overview

Category

The LM4910LQ/NOPB belongs to the category of audio power amplifiers.

Use

It is commonly used to amplify audio signals in various electronic devices such as smartphones, tablets, portable media players, and other consumer electronics.

Characteristics

• High efficiency
• Low distortion
• Small package size
• Low quiescent current

Package

The LM4910LQ/NOPB is available in a small outline package (SOIC) with a specified thermal impedance for enhanced heat dissipation.

Essence

The essence of LM4910LQ/NOPB lies in its ability to provide high-quality audio amplification in a compact and efficient package.

Packaging/Quantity

The LM4910LQ/NOPB is typically packaged in reels and is available in quantities suitable for mass production.

Specifications

• Power Supply Voltage: 2.7V to 5.5V
• Output Power: 1.25W at 3.6V, 10% THD+N, 8Ω Load
• Quiescent Current: 4mA
• Shutdown Current: 0.01μA
• Total Harmonic Distortion + Noise (THD+N): 0.15% at 1kHz, 1.25W, 8Ω Load

Detailed Pin Configuration

The LM4910LQ/NOPB has a standard pin configuration with pins designated for power supply, input signal, output load, and control functions.

Functional Features

• Integrated shutdown control
• Thermal shutdown protection
• Short-circuit and over-temperature protection
• Low quiescent current in shutdown mode

Advantages

• High efficiency and low distortion
• Small package size for space-constrained designs
• Wide operating voltage range
• Integrated protection features for reliability

Disadvantages

• Limited output power compared to higher wattage amplifiers
• May require additional circuitry for specific applications

Working Principles

The LM4910LQ/NOPB operates by amplifying the input audio signal using an internal amplifier stage and delivering the amplified signal to the connected load (e.g., speaker or headphones). It utilizes low quiescent current and efficient power management techniques to optimize performance and power consumption.

Detailed Application Field Plans

The LM4910LQ/NOPB is well-suited for use in portable electronic devices, including: - Smartphones - Tablets - Portable media players - Handheld gaming devices - Bluetooth speakers

Detailed and Complete Alternative Models

• LM4863: Higher power output audio amplifier
• LM4880: Stereo audio amplifier with differential inputs
• LM4950: Class D audio power amplifier with integrated boost converter

In conclusion, the LM4910LQ/NOPB is a versatile audio power amplifier that offers high efficiency, low distortion, and compact packaging, making it an ideal choice for various portable electronic devices.

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