LM4889MA/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Amplifier

Characteristics: - High-performance audio amplifier - Low power consumption - Small package size - Wide supply voltage range - Excellent audio quality

Package: SOP-8 (Small Outline Package)

Essence: The LM4889MA/NOPB is a high-performance audio amplifier IC designed for various audio applications, including portable devices, multimedia systems, and televisions.

Packaging/Quantity: The LM4889MA/NOPB is typically sold in reels of 2500 units.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Power: 1.1W (at 5V, 10% THD+N, 8Ω load)
• Total Harmonic Distortion + Noise (THD+N): 0.1% (at 1kHz, 1W, 8Ω load)
• Efficiency: 85% (at 5V, 1W, 8Ω load)
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4889MA/NOPB has the following pin configuration:

___________ | | NC |1 8| VDD IN- |2 7| SHUTDOWN IN+ |3 6| OUT GND |4 5| BYPASS |___________|

Functional Features

1. High-Quality Audio: The LM4889MA/NOPB provides excellent audio performance with low distortion and noise, ensuring clear and crisp sound reproduction.
2. Low Power Consumption: With its efficient design, the LM4889MA/NOPB consumes minimal power, making it suitable for battery-powered devices.
3. Wide Supply Voltage Range: The IC operates within a wide voltage range, allowing flexibility in various applications.
4. Shutdown Mode: The SHUTDOWN pin enables the IC to enter a low-power shutdown mode, reducing power consumption when not in use.
5. Bypass Mode: The BYPASS pin allows direct audio signal routing without amplification, useful for certain applications where amplification is not required.

Advantages and Disadvantages

Advantages: - High-quality audio output - Low power consumption - Small package size - Wide supply voltage range - Shutdown mode for power saving

Disadvantages: - Limited output power compared to higher wattage amplifiers - Not suitable for high-power audio applications

Working Principles

The LM4889MA/NOPB is a class AB audio amplifier that amplifies the input audio signal while maintaining low distortion and noise levels. It utilizes internal circuitry to provide gain and drive the connected speaker or headphone. The IC operates within a specified supply voltage range and can be controlled using the SHUTDOWN pin to enter a low-power mode when not in use.

Detailed Application Field Plans

The LM4889MA/NOPB is widely used in various audio applications, including but not limited to: - Portable devices such as smartphones, tablets, and portable media players - Multimedia systems including laptops, desktop computers, and gaming consoles - Televisions and home theater systems - Automotive audio systems - Industrial audio equipment

Alternative Models

1. TPA301DGNR - Texas Instruments
2. MAX9814ETD+ - Maxim Integrated
3. NJM2073D - New Japan Radio

These alternative models offer similar functionality and can be considered as substitutes for the LM4889MA/NOPB in audio amplifier applications.

In conclusion, the LM4889MA/NOPB is a high-performance audio amplifier IC that provides excellent audio quality, low power consumption, and versatility in various audio applications. Its small package size and wide supply voltage range make it suitable for portable devices, multimedia systems, and televisions. While it may have limitations in terms of output power, it offers advantages such as shutdown mode for power saving. Alternative models from different manufacturers are also available for consideration.