LM4802BLQ/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Amplifier

Characteristics: - High-performance stereo audio amplifier - Low power consumption - Small package size - Wide supply voltage range - Excellent audio quality

Package: 14-pin plastic quad flat package (PQFP)

Essence: The LM4802BLQ/NOPB is a high-performance stereo audio amplifier IC designed for various audio applications, including portable devices, multimedia systems, and automotive audio systems.

Packaging/Quantity: The LM4802BLQ/NOPB is available in tape and reel packaging. The quantity per reel is typically 2500 pieces.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Power: 1.25W per channel (at 5V, 10% THD+N, 8Ω 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 LM4802BLQ/NOPB has a 14-pin configuration as follows:

```

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| | --| VDD | --| INL | --| INR | --| GND | --| SHUTDOWN | --| BYPASS | --| MUTE | --| VOUTL | --| VOUTR | --| VREF | --| NC | --| VDD | |___________| ```

Functional Features

• Low quiescent current consumption
• Thermal shutdown protection
• Short-circuit protection
• Pop and click suppression during power-up and shutdown
• External gain configuration option

Advantages

• High audio quality with low distortion
• Wide supply voltage range allows for flexibility in various applications
• Small package size enables space-saving designs
• Low power consumption extends battery life in portable devices

Disadvantages

• Limited output power compared to higher wattage amplifiers
• Requires external components for full functionality

Working Principles

The LM4802BLQ/NOPB is a class AB stereo audio amplifier that utilizes a bridge-tied load (BTL) configuration. It amplifies the input audio signals and drives the connected speakers or headphones. The amplifier operates by modulating the input signal using a pair of complementary transistors, resulting in an amplified output signal.

Detailed Application Field Plans

The LM4802BLQ/NOPB can be used in various audio applications, including but not limited to: - Portable audio devices such as MP3 players and smartphones - Multimedia systems like laptops, tablets, and gaming consoles - Automotive audio systems in cars, motorcycles, and recreational vehicles

Alternative Models

1. LM4861M/NOPB: Mono Class AB Audio Amplifier IC
2. LM48310SQ/NOPB: Stereo 2.6W Class D Audio Amplifier IC
3. LM386N-4/NOPB: Low Voltage Audio Power Amplifier IC

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

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