TPA751DGN

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Amplifier

Characteristics: - Single-channel audio amplifier - High output power capability - Low distortion and noise - Wide supply voltage range - Thermal and short-circuit protection - Small package size

Package: DGN (8-pin, plastic dual in-line package)

Essence: The TPA751DGN is a single-channel audio amplifier IC designed for high-quality audio applications. It provides high output power while maintaining low distortion and noise levels.

Packaging/Quantity: The TPA751DGN is available in a plastic dual in-line package (DGN) and is typically sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage Range: 2.5V to 5.5V
• Output Power: Up to 1.2W
• Total Harmonic Distortion + Noise (THD+N): <0.1%
• Signal-to-Noise Ratio (SNR): >90dB
• Shutdown Current: <1µA
• Operating Temperature Range: -40°C to 85°C

Pin Configuration

The TPA751DGN has the following pin configuration:

```

---

| | --| VDD GND|-- Pin 1: Ground (GND) --| IN+ OUT|-- Pin 2: Output (OUT) --| IN- SHDN|-- Pin 3: Shutdown (SHDN) --| BIAS VDD|-- Pin 4: Positive Supply Voltage (VDD) |___________| ```

Functional Features

1. High Output Power Capability: The TPA751DGN can deliver up to 1.2W of power, making it suitable for driving small speakers or headphones.
2. Low Distortion and Noise: The IC is designed to minimize distortion and noise, ensuring high-quality audio reproduction.
3. Wide Supply Voltage Range: With a supply voltage range of 2.5V to 5.5V, the TPA751DGN can be powered by various sources, including batteries and DC power supplies.
4. Thermal and Short-Circuit Protection: The amplifier includes built-in protection mechanisms to prevent damage from excessive heat or short-circuits.
5. Small Package Size: The DGN package allows for compact designs, making it suitable for space-constrained applications.

Advantages and Disadvantages

Advantages: - High output power capability - Low distortion and noise - Wide supply voltage range - Thermal and short-circuit protection - Compact package size

Disadvantages: - Limited to single-channel audio amplification - Requires external components for full functionality

Working Principles

The TPA751DGN operates as a class AB audio amplifier. It amplifies the input audio signal and delivers it to the output with increased power. The amplifier uses a combination of analog circuitry and digital control to achieve high-quality audio reproduction.

Detailed Application Field Plans

The TPA751DGN is commonly used in various audio applications, including: 1. Portable audio devices (e.g., MP3 players, smartphones) 2. Personal computers and laptops 3. Home audio systems 4. Automotive audio systems 5. Gaming consoles

Detailed and Complete Alternative Models

1. LM386: A popular audio amplifier IC with similar features and performance.
2. TDA7052: Another single-channel audio amplifier IC suitable for low-power applications.
3. MAX9744: A higher-power audio amplifier IC with integrated volume control.

These alternative models offer different specifications and package options, providing flexibility for various design requirements.

Word count: 377 words