LM4881MM/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Amplifier

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

Package: Miniature 8-pin MSOP (Micro Small Outline Package)

Essence: The LM4881MM/NOPB is a mono audio amplifier IC designed for low voltage applications. It provides high-quality audio amplification with a small form factor.

Packaging/Quantity: The LM4881MM/NOPB is typically sold in reels or tubes, containing a specified quantity of ICs per package.

Specifications

• Supply Voltage Range: 2.5V to 5.5V
• Output Power: Up to 1W (at 5V supply voltage)
• Total Harmonic Distortion (THD): 0.1% (typical)
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4881MM/NOPB has the following pin configuration:

____ VDD | | GND IN+ | | SHDN IN- | | OUT BYP |____| NC

• VDD: Positive power supply
• GND: Ground reference
• IN+: Non-inverting input
• IN-: Inverting input
• SHDN: Shutdown control input
• OUT: Amplified audio output
• BYP: Bypass capacitor connection
• NC: No connection (unused pin)

Functional Features

• Low voltage operation allows for compatibility with various portable devices.
• High output power capability enables driving small speakers or headphones.
• Shutdown control feature for power-saving purposes.
• Bypass capacitor connection for improved audio performance.

Advantages and Disadvantages

Advantages: - Small package size makes it suitable for space-constrained applications. - Low voltage operation extends battery life in portable devices. - High output power capability provides clear and loud audio output. - Shutdown control feature helps conserve power when not in use.

Disadvantages: - Mono audio amplifier, not suitable for stereo applications. - Limited output power compared to higher wattage amplifiers. - Requires external components (such as capacitors) for proper operation.

Working Principles

The LM4881MM/NOPB is a class AB audio amplifier that operates on low voltage. It amplifies the input audio signal and delivers an amplified output to drive speakers or headphones. The amplifier circuitry ensures minimal distortion and high-quality audio reproduction.

Detailed Application Field Plans

The LM4881MM/NOPB is commonly used in various portable electronic devices, including but not limited to: - Mobile phones - Tablets - Portable media players - Bluetooth speakers - Gaming consoles

Its small form factor, low voltage operation, and high output power capability make it ideal for these applications where space and power efficiency are crucial.

Detailed and Complete Alternative Models

• LM4882MM/NOPB: Dual-channel version of LM4881MM/NOPB for stereo applications.
• LM4861MM/NOPB: Similar mono audio amplifier with different specifications.
• TPA2005D1: Another popular mono audio amplifier IC with similar features.

These alternative models offer similar functionality and can be considered as alternatives to the LM4881MM/NOPB based on specific requirements and design considerations.

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