PAM8404KGR

Introduction

The PAM8404KGR is a class D audio amplifier integrated circuit designed for use in various electronic devices. This entry provides an overview of the product, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Audio Amplifier IC
• Use: The PAM8404KGR is used to amplify audio signals in electronic devices such as portable speakers, televisions, and sound systems.
• Characteristics: It is known for its high efficiency, low power consumption, and compact size.
• Package: The PAM8404KGR is typically available in a small outline package (SOP) or dual in-line package (DIP).
• Essence: The essence of the PAM8404KGR lies in its ability to deliver high-quality audio amplification in a compact form factor.
• Packaging/Quantity: It is commonly packaged in reels or tubes containing multiple units.

Specifications

• Output Power: 3W + 3W (at 4Ω, 5V)
• Efficiency: Up to 90%
• Operating Voltage: 2.5V - 5.5V
• Total Harmonic Distortion (THD): <10%
• Shutdown Current: <1μA
• Operating Temperature: -40°C to 85°C

Detailed Pin Configuration

The PAM8404KGR typically features the following pin configuration: 1. VDD (Power Supply) 2. GND (Ground) 3. INL- (Left Channel Negative Input) 4. INL+ (Left Channel Positive Input) 5. INR+ (Right Channel Positive Input) 6. INR- (Right Channel Negative Input) 7. SD (Shutdown Control) 8. PVDD (Power Supply)

Functional Features

• High Efficiency: The PAM8404KGR offers high efficiency, making it suitable for battery-powered devices.
• Low Power Consumption: It consumes minimal power, extending the battery life of portable electronics.
• Short-Circuit Protection: It includes built-in protection against short circuits, enhancing the reliability of the connected devices.

Advantages and Disadvantages

Advantages

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

Disadvantages

• Limited output power compared to larger amplifiers
• Sensitive to voltage fluctuations

Working Principles

The PAM8404KGR operates on the principle of pulse-width modulation (PWM) to amplify audio signals. It utilizes a class D amplifier architecture, which efficiently switches the output transistors to minimize power dissipation and maximize energy transfer to the load.

Detailed Application Field Plans

The PAM8404KGR is well-suited for integration into the following electronic devices: - Portable speakers - Headphone amplifiers - Soundbars - Televisions - Automotive audio systems

Detailed and Complete Alternative Models

• TDA7266: A comparable audio amplifier IC with similar power output and operating voltage range.
• TPA3116D2: An alternative class D amplifier IC offering higher output power and advanced features.

In conclusion, the PAM8404KGR is a versatile audio amplifier IC that excels in delivering high-quality audio amplification while maintaining a compact form factor and high efficiency. Its application spans across various electronic devices, making it a popular choice for audio amplification needs.

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