LM4950TSX/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Power Amplifier
• Characteristics: High-performance, stereo audio amplifier
• Package: TSOT-23-8 package
• Essence: Provides high-quality audio amplification in a compact form factor
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Power Supply Voltage: 2.5V to 5.5V
• Output Power: 1.1W per channel into 8Ω load at 5V supply voltage
• Total Harmonic Distortion + Noise: 0.1% at 1kHz, 0.6W output power
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4950TSX/NOPB IC has the following pin configuration:

```

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| | --| VDD GND|-- --| INL OUTL|-- --| INR OUTR|-- --| SHDN B|-- |___________| ```

• VDD: Power supply voltage input
• GND: Ground reference
• INL: Left channel audio input
• OUTL: Left channel audio output
• INR: Right channel audio input
• OUTR: Right channel audio output
• SHDN: Shutdown control input
• B: Bypass capacitor connection

Functional Features

• High-quality audio amplification for stereo applications
• Low power consumption and shutdown current
• Wide operating voltage range for flexibility
• Small form factor package for space-constrained designs
• Thermal shutdown protection for enhanced safety

Advantages and Disadvantages

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

Disadvantages: - Limited output power compared to higher wattage amplifiers - May require additional external components for optimal performance

Working Principles

The LM4950TSX/NOPB is an audio power amplifier that utilizes integrated circuit technology to amplify audio signals. It operates by receiving audio input signals through the INL and INR pins, amplifying them, and then outputting the amplified audio signals through the OUTL and OUTR pins. The SHDN pin allows for control of the amplifier's operation, enabling it to be turned on or off as needed.

Detailed Application Field Plans

The LM4950TSX/NOPB is commonly used in various audio applications, including:

1. Portable audio devices: Provides high-quality audio amplification for smartphones, tablets, and portable media players.
2. Headphone amplifiers: Enhances the audio output quality for headphones and earphones.
3. Computer speakers: Amplifies audio signals for desktop or laptop computer speaker systems.
4. Home audio systems: Used as a component in stereo receivers, mini hi-fi systems, and other home audio equipment.

Detailed and Complete Alternative Models

1. LM4863: Stereo audio amplifier with higher output power capability.
2. TPA3116D2: Class D audio amplifier with advanced features and higher efficiency.
3. MAX9744: Integrated audio amplifier with built-in volume control and equalization options.

These alternative models offer different specifications and features, allowing designers to choose the most suitable option based on their specific requirements.

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