LM4907LQ/NOPB

Introduction

The LM4907LQ/NOPB is a versatile audio amplifier belonging to the category of integrated circuits. This device is commonly used in various electronic applications due to its unique characteristics and features.

Basic Information Overview

• Category: Integrated Circuit
• Use: Audio Amplification
• Characteristics: High efficiency, low distortion, compact size
• Package: QFN (Quad Flat No-Lead)
• Essence: Efficient audio amplification for electronic devices
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Power Supply Voltage: 2.4V to 5.5V
• Output Power: 1.1W at 5V, 10% THD+N, 8Ω Load
• Shutdown Current: 0.01μA (typical)
• Quiescent Current: 4mA (typical)

Detailed Pin Configuration

The LM4907LQ/NOPB features a QFN package with a specific pin configuration as follows: 1. VDD - Power supply voltage input 2. GND - Ground connection 3. SHDN - Shutdown control input 4. IN+ - Non-inverting input 5. IN- - Inverting input 6. OUT - Amplified output 7. Bypass - Bypass capacitor connection

Functional Features

• Low Quiescent Current
• Thermal Shutdown Protection
• Short-Circuit and Thermal Protection
• Unity-Gain Stable
• Shutdown Control

Advantages and Disadvantages

Advantages

• Compact size
• Low power consumption
• Built-in protection features

Disadvantages

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

Working Principles

The LM4907LQ/NOPB operates by amplifying the input audio signal using an internal operational amplifier and delivering the amplified signal to the output pin. It utilizes low power while providing efficient audio amplification for various electronic devices.

Detailed Application Field Plans

The LM4907LQ/NOPB finds extensive application in portable electronic devices such as smartphones, tablets, portable speakers, and handheld gaming consoles. Its compact size and low power consumption make it ideal for battery-powered applications requiring audio amplification.

Detailed and Complete Alternative Models

• LM4863: Higher output power, similar package
• LM4880: Lower quiescent current, similar package
• LM4950: Stereo audio amplifier, similar package

In conclusion, the LM4907LQ/NOPB is a highly efficient audio amplifier integrated circuit suitable for a wide range of portable electronic devices. Its compact size, low power consumption, and built-in protection features make it a popular choice for audio amplification applications.

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