LM48555TLX/NOPB

Product Overview

Category

LM48555TLX/NOPB belongs to the category of audio power amplifiers.

Use

It is used to amplify audio signals and drive speakers in various electronic devices such as smartphones, tablets, and portable media players.

Characteristics

• High efficiency
• Low quiescent current
• Thermal shutdown protection
• Short-circuit and thermal overload protection

Package

The LM48555TLX/NOPB comes in a small outline package (SOP) with a specified footprint for easy integration into circuit boards.

Essence

The essence of LM48555TLX/NOPB lies in its ability to provide high-quality audio amplification in a compact and efficient package.

Packaging/Quantity

The LM48555TLX/NOPB is typically packaged in reels containing a specific quantity based on customer requirements.

Specifications

• Output Power: 1.3W per channel into 8Ω at 5V
• Total Harmonic Distortion + Noise (THD+N): 0.1% (typical)
• Quiescent Current: 2.5mA (typical)
• Operating Voltage Range: 2.7V to 5.5V
• Shutdown Current: 0.01μA (typical)

Detailed Pin Configuration

The LM48555TLX/NOPB has a total of 20 pins, including power supply, input, output, and control pins. The detailed pin configuration can be found in the product datasheet.

Functional Features

• Integrated volume control
• Differential inputs
• Click-and-pop suppression
• Soft-start ramping of the output voltage

Advantages and Disadvantages

Advantages

• High efficiency
• Small form factor
• Integrated volume control for simplified design
• Low quiescent current for extended battery life

Disadvantages

• Limited output power compared to higher wattage amplifiers
• Requires external components for full functionality

Working Principles

The LM48555TLX/NOPB operates by receiving audio input signals, amplifying them, and driving the connected speakers. It utilizes differential inputs and click-and-pop suppression to ensure high-quality audio output.

Detailed Application Field Plans

The LM48555TLX/NOPB is well-suited for use in portable electronic devices such as smartphones, tablets, portable media players, and other battery-powered applications where high-quality audio amplification is required.

Detailed and Complete Alternative Models

• LM4863: Higher output power but larger form factor
• LM4880: Lower quiescent current but without integrated volume control
• LM4894: Higher efficiency but with a different pin configuration

In conclusion, the LM48555TLX/NOPB is a versatile audio power amplifier suitable for various portable electronic devices, offering high efficiency and integrated volume control in a compact package.

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