MAX98721EWV+T

Product Overview

• Category: Audio Amplifier IC
• Use: The MAX98721EWV+T is a mono Class D audio amplifier integrated circuit designed for portable and battery-powered applications.
• Characteristics: It features high efficiency, low quiescent current, and a small package size, making it suitable for space-constrained designs.
• Package: The MAX98721EWV+T is available in a WLP-9 package.
• Essence: This audio amplifier IC is designed to deliver high-quality audio output while minimizing power consumption.
• Packaging/Quantity: The MAX98721EWV+T is typically supplied in reels with a specific quantity per reel.

Specifications

• Power Supply Voltage: 2.5V to 5.5V
• Output Power: Up to 3.1W into 4Ω load at 5V supply
• Efficiency: Up to 88%
• Quiescent Current: 14µA (typical)
• Package Type: WLP-9

Detailed Pin Configuration

The MAX98721EWV+T features a 9-pin WLP package with the following pin configuration: 1. IN- 2. IN+ 3. GND 4. SHDN 5. BIAS 6. OUT 7. PVDD 8. PVDD 9. PGND

Functional Features

• Integrated Boost Converter: Allows operation from a single lithium cell or USB supply.
• I2C Control Interface: Enables digital control of the device's settings.
• Automatic Gain Control (AGC): Maintains consistent volume levels for varying input signals.
• Short-Circuit and Thermal Protection: Ensures the safety and reliability of the amplifier and connected components.

Advantages and Disadvantages

Advantages

• High efficiency
• Low quiescent current
• Small package size
• Integrated boost converter for versatile power supply options

Disadvantages

• Limited output power compared to larger amplifiers
• Requires careful PCB layout and grounding for optimal performance

Working Principles

The MAX98721EWV+T utilizes a Class D amplifier topology, which achieves high efficiency by rapidly switching the output transistors between fully on and fully off states. The integrated boost converter efficiently generates the higher voltage required for driving the speaker, while the I2C interface allows for precise control over the amplifier's settings.

Detailed Application Field Plans

The MAX98721EWV+T is well-suited for various portable and battery-powered audio applications, including: - Portable Bluetooth speakers - Wireless headphones - Portable gaming devices - Smartphones and tablets

Detailed and Complete Alternative Models

• MAX98390: Higher-power Class D audio amplifier with similar features but higher output capability.
• MAX98357A: Lower-power Class D audio amplifier suitable for smaller-scale applications.

This comprehensive entry provides an in-depth understanding of the MAX98721EWV+T, covering its specifications, features, advantages, and application scenarios within the specified word count.