LM4550BVH/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Amplifier

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

Package: SOP-8 (Small Outline Package)

Essence: The LM4550BVH/NOPB is a high-performance audio amplifier IC designed for various audio applications. It offers excellent audio quality while consuming low power.

Packaging/Quantity: The LM4550BVH/NOPB is available in a SOP-8 package. Each package contains one IC.

Specifications

• Operating Voltage Range: 2.7V to 5.5V
• Output Power: 1.2W (typical)
• Total Harmonic Distortion + Noise (THD+N): 0.1% (typical)
• Signal-to-Noise Ratio (SNR): 90dB (typical)
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The LM4550BVH/NOPB has the following pin configuration:

1. VDD: Power supply voltage input
2. IN+: Positive audio input
3. IN-: Negative audio input
4. GND: Ground reference
5. SHUTDOWN: Shutdown control input
6. OUT: Audio output
7. NC: No connection
8. VSS: Negative power supply voltage input

Functional Features

• High-quality audio amplification
• Low power consumption
• Shutdown mode for power saving
• Short-circuit and thermal protection
• Wide operating voltage range
• Single-ended or bridge-tied load configurations

Advantages

• Excellent audio quality with low distortion
• Wide operating voltage range allows flexibility in power supply selection
• Small package size enables space-saving designs
• Low power consumption for energy-efficient applications
• Shutdown mode helps conserve power when not in use

Disadvantages

• Limited output power compared to higher wattage amplifiers
• Requires external components for proper operation
• Sensitivity to improper circuit layout and grounding

Working Principles

The LM4550BVH/NOPB operates as an audio amplifier by amplifying the input audio signal. It utilizes a class AB amplifier configuration to achieve high-quality audio reproduction. The IC incorporates various protection mechanisms, such as short-circuit and thermal protection, to ensure safe and reliable operation.

Detailed Application Field Plans

The LM4550BVH/NOPB is suitable for a wide range of audio applications, including but not limited to: - Portable audio devices - Mobile phones - Tablets - Personal computers - Multimedia speakers - Headphones

Detailed and Complete Alternative Models

1. LM4863: Dual 2.2W Audio Amplifier
2. TPA3116D2: 50W Stereo Class D Audio Amplifier
3. MAX9744: 20W Stereo Class D Audio Power Amplifier
4. TDA7265: 25W Dual Bridge Audio Amplifier

These alternative models offer similar functionality and can be considered as alternatives to the LM4550BVH/NOPB based on specific application requirements.

In conclusion, the LM4550BVH/NOPB is a high-performance audio amplifier IC that provides excellent audio quality while consuming low power. Its small package size and wide operating voltage range make it suitable for various audio applications. However, it has limitations in terms of output power and requires careful circuit design for optimal performance.