LM4910MM/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: Low Noise, Stereo, Class AB
• Package: 8-Pin Miniature Metal Can (MM)
• Essence: High-performance audio amplifier for portable devices
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 2.7V to 5.5V
• Output Power: 1.1W per channel (at 5V, 10% THD+N, 1kHz, 4Ω load)
• Total Harmonic Distortion + Noise (THD+N): 0.1% (typical)
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4910MM/NOPB IC has the following pin configuration:

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| | | OUTL | | 1 | |___________| | | | GND | | 2 | |___________| | | | VDD | | 3 | |___________| | | | INL | | 4 | |___________| | | | SHDN | | 5 | |___________| | | | INR | | 6 | |___________| | | | VREF | | 7 | |___________| | | | OUTR | | 8 | |___________| ```

Functional Features

• Low noise audio amplification
• Stereo output capability
• Class AB amplifier architecture for improved efficiency
• Shutdown mode for power-saving when not in use
• Internal thermal shutdown protection
• Short-circuit and over-voltage protection

Advantages and Disadvantages

Advantages: - High-quality audio amplification - Low noise performance - Compact package size - Wide operating voltage range - Efficient power consumption

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

Working Principles

The LM4910MM/NOPB is a class AB audio amplifier designed to provide high-quality audio amplification for portable devices. It operates on a low supply voltage, making it suitable for battery-powered applications. The amplifier utilizes a stereo configuration, allowing for the reproduction of audio signals with spatial separation.

The IC incorporates internal circuitry for low noise operation, ensuring minimal interference and distortion in the amplified audio signal. It also features a shutdown mode, which reduces power consumption when the amplifier is not in use.

To protect the IC and connected components, the LM4910MM/NOPB includes built-in safeguards such as thermal shutdown, short-circuit protection, and over-voltage protection.

Detailed Application Field Plans

The LM4910MM/NOPB is commonly used in various portable audio devices, including:

1. Mobile phones
2. MP3 players
3. Portable gaming consoles
4. Personal digital assistants (PDAs)
5. Tablet computers

Due to its compact package and low power requirements, the LM4910MM/NOPB is an ideal choice for space-constrained and battery-powered applications where high-quality audio amplification is desired.

Alternative Models

1. LM4863M/NOPB: Dual 2.2W Audio Amplifier, 8-Pin Miniature Metal Can (MM) package
2. TPA3110D2PWPR: 15W Stereo Class D Audio Power Amplifier, 20-Pin HTSSOP package
3. MAX9744ETJ+: 20W Stereo Class D Audio Power Amplifier, 32-Pin TQFN package

These alternative models offer different power outputs and package options, providing flexibility for various audio amplification requirements.

In conclusion, the LM4910MM/NOPB is a high-performance audio amplifier IC designed for portable devices. Its low noise operation, stereo capability, and compact package make it suitable for a wide range of applications. While it has limitations in terms of output power, it offers advantages such as efficient power consumption and high-quality audio amplification.