LM4981SQ/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Amplifier

Characteristics: - High-performance audio amplifier - Single-ended input, bridge-tied load (BTL) output configuration - Wide supply voltage range: 4.5V to 26V - Low distortion and noise - Thermal shutdown protection - Small package size for space-constrained applications

Package: 16-pin LLP (Leadless Leadframe Package)

Essence: The LM4981SQ/NOPB is a high-performance audio amplifier IC designed for various audio applications.

Packaging/Quantity: The LM4981SQ/NOPB is available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 4.5V to 26V
• Output Power: Up to 2W per channel
• Total Harmonic Distortion + Noise (THD+N): <0.1%
• Signal-to-Noise Ratio (SNR): >100dB
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4981SQ/NOPB has a 16-pin LLP package with the following pin configuration:

1. IN-
2. IN+
3. GND
4. VCC
5. BYP
6. MUTE
7. SHUTDOWN
8. OUT1
9. OUT2
10. NC
11. NC
12. NC
13. NC
14. NC
15. NC
16. NC

Functional Features

• Single-ended input, bridge-tied load (BTL) output configuration for improved audio performance.
• Thermal shutdown protection prevents damage due to excessive temperature.
• Mute and shutdown control pins for easy integration into audio systems.
• Wide supply voltage range allows for flexibility in various applications.
• Low distortion and noise ensure high-quality audio output.

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Small package size for space-constrained applications - Wide supply voltage range for flexibility - Low distortion and noise for high-quality audio output

Disadvantages: - Limited output power compared to higher wattage amplifiers - Requires external components for complete audio system integration

Working Principles

The LM4981SQ/NOPB operates as an audio amplifier by taking the input audio signal and amplifying it to a higher power level suitable for driving speakers or headphones. It utilizes a single-ended input and bridge-tied load (BTL) output configuration to achieve improved audio performance. The IC incorporates thermal shutdown protection to prevent damage from excessive temperature. Mute and shutdown control pins allow for easy integration into audio systems, providing additional functionality and convenience.

Detailed Application Field Plans

The LM4981SQ/NOPB is suitable for a wide range of audio applications, including but not limited to: - Portable audio devices - Home audio systems - Automotive audio systems - Multimedia speakers - Headphone amplifiers

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the LM4981SQ/NOPB are: - LM4889SQ/NOPB - LM386N-4/NOPB - TPA3116D2PWPR - MAX9744EUI+ - TAS5630BPHDR

These alternative models offer similar functionality and characteristics, providing options for different design requirements.

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