LM4881MMX/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Amplifier

Characteristics: - Mono audio amplifier - Low voltage operation - Small package size - High output power - Low distortion

Package: MMX (8-pin SOIC package)

Essence: The LM4881MMX/NOPB is a mono audio amplifier IC designed for low voltage applications. It provides high-quality audio amplification with low distortion and high output power.

Packaging/Quantity: The LM4881MMX/NOPB is available in a 8-pin SOIC package. It is typically sold in reels of 2500 units.

Specifications

• Supply Voltage Range: 2.5V to 5.5V
• Output Power: 1.1W (4Ω, 5V)
• Total Harmonic Distortion + Noise (THD+N): 0.1% (1kHz, 1.1W)
• Shutdown Current: 0.01μA (typical)
• Quiescent Current: 3mA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4881MMX/NOPB has the following pin configuration:

```

---

| | --| VDD GND|-- Pin 1: Power supply --| IN+ OUT|-- Pin 2: Positive input / Output --| IN- SHD|-- Pin 3: Negative input / Shutdown --| Bypass NC|-- Pin 4: Bypass capacitor / No connection --| Gain NC|-- Pin 5: Gain selection / No connection --| NC NC|-- Pin 6: No connection --| VOUT VDD|-- Pin 7: Output / Power supply --| NC VDD|-- Pin 8: No connection / Power supply |___________| ```

Functional Features

• Low voltage operation allows for use in battery-powered devices.
• High output power enables driving speakers with sufficient volume.
• Low distortion ensures high-quality audio reproduction.
• Shutdown pin allows for power-saving mode when not in use.
• Bypass capacitor improves audio performance by reducing noise.

Advantages and Disadvantages

Advantages: - Suitable for low voltage applications - Compact package size - High output power - Low distortion

Disadvantages: - Limited to mono audio amplification - Requires external components for complete audio system

Working Principles

The LM4881MMX/NOPB is a class AB audio amplifier that operates on low voltage. It amplifies the input audio signal and provides a higher power output suitable for driving speakers. The amplifier circuitry ensures low distortion and high-quality audio reproduction. The shutdown pin allows for power-saving mode when the amplifier is not in use.

Detailed Application Field Plans

The LM4881MMX/NOPB can be used in various applications, including: - Portable audio devices - Mobile phones - Tablets - Laptop computers - Gaming consoles - Personal digital assistants (PDAs)

Detailed and Complete Alternative Models

Some alternative models to the LM4881MMX/NOPB include: - LM4882MMX/NOPB - LM4861MMX/NOPB - LM4862MMX/NOPB - LM4871MMX/NOPB - LM4872MMX/NOPB

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

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