LM4879ITPX/NOPB

Product Overview

Category: Integrated Circuit
Use: Audio Amplifier
Characteristics: Low voltage, low power consumption
Package: Thin Shrink Small Outline Package (TSSOP)
Essence: Class AB audio amplifier
Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Supply Voltage: 2.7V to 5.5V
• Output Power: 1.1W at 5V, 10% THD+N, 8Ω Load
• Quiescent Current: 4mA
• Shutdown Current: 0.6μA
• SNR: 92dB
• THD+N: 0.1% at 1kHz, 5V, 8Ω Load

Detailed Pin Configuration

1. IN-: Audio Input Negative
2. IN+: Audio Input Positive
3. GND: Ground
4. VDD: Power Supply
5. SD: Shutdown
6. OUT: Speaker Output
7. BYPASS: Bypass Capacitor
8. VREF: Reference Voltage

Functional Features

• Single Supply Operation
• Low Quiescent Current
• Thermal Shutdown Protection
• Short-Circuit and Thermal Protection
• Superior Low Noise Performance

Advantages and Disadvantages

Advantages: - Low power consumption - Small package size - Thermal shutdown protection

Disadvantages: - Limited output power compared to higher wattage amplifiers - Requires external bypass capacitor for optimal performance

Working Principles

The LM4879ITPX/NOPB is a class AB audio amplifier that operates on a single supply voltage. It amplifies the input audio signal and drives the speaker with low distortion and noise.

Detailed Application Field Plans

The LM4879ITPX/NOPB is suitable for portable electronic devices such as smartphones, tablets, and portable speakers where low power consumption and small form factor are essential. It can also be used in battery-powered audio applications.

Detailed and Complete Alternative Models

• LM4863: Higher output power, similar package
• LM4880: Lower quiescent current, similar features
• LM4890: Higher SNR, similar package

This integrated circuit provides a balance of power efficiency and audio performance, making it ideal for portable audio applications.

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