LM4950TS/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Power Amplifier
• Characteristics: High-performance, stereo audio amplifier
• Package: TO-263-15 (5 Lead) package
• Essence: Provides high-quality audio amplification for various applications
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Power Supply Voltage: 4.5V to 9V
• Output Power: 1.1W per channel (at 5V, 10% THD+N, 8Ω load)
• Total Harmonic Distortion + Noise: 0.2% (typical)
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4950TS/NOPB IC has a total of 5 pins:

1. VDD: Power supply voltage input
2. GND: Ground reference
3. SD: Shutdown control pin
4. INL: Left channel audio input
5. INR: Right channel audio input

Functional Features

• High-quality audio amplification with low distortion
• Stereo operation for left and right channels
• Shutdown mode for power saving
• Thermal shutdown protection
• Short-circuit protection

Advantages and Disadvantages

Advantages

• High-performance audio amplification
• Low distortion and noise
• Compact package size
• Shutdown mode for power saving

Disadvantages

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

Working Principles

The LM4950TS/NOPB is an audio power amplifier that takes the audio input signals from the left and right channels and amplifies them to drive speakers or headphones. It operates on a power supply voltage between 4.5V and 9V. The amplifier provides high-quality audio amplification with low distortion and noise.

The IC features a shutdown mode, which allows the user to turn off the amplifier when not in use, reducing power consumption. It also includes thermal shutdown protection and short-circuit protection to ensure safe operation.

Detailed Application Field Plans

The LM4950TS/NOPB is commonly used in various audio applications, including:

1. Portable audio devices
2. Headphone amplifiers
3. Multimedia speakers
4. Personal computer audio systems
5. Gaming consoles

Its compact package size and low power consumption make it suitable for portable and battery-powered devices.

Detailed and Complete Alternative Models

• LM4861: Mono Audio Power Amplifier
• LM386: Low Voltage Audio Power Amplifier
• TPA3116D2: Stereo Class D Audio Amplifier
• MAX9744: Stereo Class D Audio Power Amplifier
• TDA7297: Dual Bridge Audio Amplifier

These alternative models offer different features and specifications, providing options based on specific application requirements.

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