LM4910LQX/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Amplifier

Characteristics: - Low voltage audio power amplifier - Designed for portable devices - Provides high-quality audio output - Operates on a single supply voltage - Offers low power consumption

Package: QFN (Quad Flat No-Lead)

Essence: The LM4910LQX/NOPB is an integrated circuit that serves as a low voltage audio power amplifier. It is specifically designed for use in portable devices, providing high-quality audio output while operating on a single supply voltage. The IC comes in a QFN package, ensuring compactness and ease of integration.

Packaging/Quantity: The LM4910LQX/NOPB is typically sold in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Power: Up to 1.1W
• Total Harmonic Distortion + Noise (THD+N): 0.1%
• Shutdown Current: 0.01µA
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4910LQX/NOPB has the following pin configuration:

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| | | _______________ | | | | | | INP | | VDD | |___________| |__________| | | | _______________ | | | | | | INN | | GND | |___________| |__________| | | | _______________ | | | | | | SHDN | | OUT | |___________|_______________|__________| ```

Functional Features

• Low voltage operation for portable devices
• Single supply voltage simplifies design
• High-quality audio output with low distortion
• Shutdown mode for power saving
• Thermal shutdown protection
• Short-circuit and over-temperature protection

Advantages and Disadvantages

Advantages: - Suitable for portable devices due to low voltage operation - Provides high-quality audio output - Compact QFN package allows for easy integration - Offers various protection features for reliable operation

Disadvantages: - Limited output power compared to higher voltage amplifiers - May require additional components for specific applications

Working Principles

The LM4910LQX/NOPB operates as a low voltage audio power amplifier by amplifying the input audio signal received at the INP and INN pins. It utilizes a single supply voltage, making it suitable for portable devices. The IC incorporates various protection features such as thermal shutdown, short-circuit protection, and over-temperature protection to ensure safe and reliable operation.

Detailed Application Field Plans

The LM4910LQX/NOPB can be used in various applications, including but not limited to: 1. Portable audio devices (e.g., MP3 players, smartphones) 2. Personal computers and laptops 3. Gaming consoles and handheld gaming devices 4. Bluetooth speakers and wireless headphones 5. Automotive audio systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LM4910LQX/NOPB include: 1. TPA3116D2 - Class D audio amplifier IC 2. MAX98357A - Mono audio amplifier with digital interface 3. TDA7265 - Dual audio power amplifier IC 4. STA540 - 4-channel audio amplifier with built-in volume control

These alternative models can be considered based on specific requirements and application needs.

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