LM4889ITLX/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 - Thermal shutdown protection

Package: Thin SOT-23-5 package

Essence: The LM4889ITLX/NOPB is a high-performance audio amplifier IC designed for portable electronic devices such as smartphones, tablets, and portable media players. It provides high-quality audio amplification while consuming minimal power.

Packaging/Quantity: The LM4889ITLX/NOPB is typically sold in reels containing 3000 units per reel.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Power: 1.1W (typical) into 8Ω load at 5V supply
• Total Harmonic Distortion + Noise (THD+N): 0.1% (typical) at 1kHz, 1.0W output power
• Shutdown Current: <1µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LM4889ITLX/NOPB has a total of 5 pins:

1. VDD: Positive power supply pin
2. GND: Ground pin
3. SD: Shutdown control pin (active low)
4. IN+: Non-inverting input pin
5. OUT: Amplified audio output pin

Functional Features

• High-quality audio amplification with low distortion
• Wide supply voltage range allows compatibility with various power sources
• Thermal shutdown protection prevents damage due to excessive heat
• Shutdown control feature for power-saving mode when not in use
• Small package size enables space-saving designs in portable devices

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Low power consumption - Wide supply voltage range - Thermal shutdown protection for added safety - Small package size for compact designs

Disadvantages: - Limited output power compared to larger audio amplifiers - May require additional external components for certain applications

Working Principles

The LM4889ITLX/NOPB operates as a class AB audio amplifier. It amplifies the input audio signal received at the IN+ pin and provides an amplified output at the OUT pin. The amplifier is designed to minimize distortion and provide high-quality audio reproduction.

Detailed Application Field Plans

The LM4889ITLX/NOPB is commonly used in various portable electronic devices, including: - Smartphones - Tablets - Portable media players - Bluetooth speakers - Gaming consoles

Its small package size, low power consumption, and high-performance characteristics make it ideal for these applications where space and battery life are crucial factors.

Detailed and Complete Alternative Models

1. LM4863: Dual 2.2W Audio Amplifier
2. LM386: Low Voltage Audio Power Amplifier
3. TPA3116D2: Stereo Class D Audio Amplifier
4. MAX9744: Mono 20W Class D Audio Power Amplifier
5. TDA7297: Dual Bridge Audio Amplifier

These alternative models offer similar functionality and can be considered as alternatives to the LM4889ITLX/NOPB based on specific application requirements.

In conclusion, the LM4889ITLX/NOPB is a high-performance audio amplifier IC designed for portable electronic devices. Its small package size, low power consumption, and wide supply voltage range make it suitable for a variety of applications. However, it has limitations in terms of output power compared to larger amplifiers. Alternative models are available for specific application needs.