LM4802BLQX/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: QFN (Quad Flat No-Lead)

Essence: The LM4802BLQX/NOPB is a high-performance stereo audio amplifier IC designed for various audio applications. It offers excellent audio quality while consuming low power and comes in a compact QFN package.

Packaging/Quantity: The LM4802BLQX/NOPB is available in tape and reel packaging, with 2500 units per reel.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Power: 1.25W per channel (at 5V, 10% THD+N)
• Total Harmonic Distortion + Noise (THD+N): 0.1% (typical)
• Signal-to-Noise Ratio (SNR): 95dB (typical)
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LM4802BLQX/NOPB has a total of 20 pins. Here is the detailed pin configuration:

1. OUTL-: Negative terminal of the left audio output
2. OUTL+: Positive terminal of the left audio output
3. VDD: Positive power supply
4. GND: Ground
5. BYPASS: Bypass capacitor connection
6. INL-: Negative terminal of the left audio input
7. INL+: Positive terminal of the left audio input
8. SHUTDOWN: Shutdown control input
9. VDD: Positive power supply
10. GND: Ground
11. BYPASS: Bypass capacitor connection
12. INR-: Negative terminal of the right audio input
13. INR+: Positive terminal of the right audio input
14. OUTR+: Positive terminal of the right audio output
15. OUTR-: Negative terminal of the right audio output
16. VDD: Positive power supply
17. GND: Ground
18. BYPASS: Bypass capacitor connection
19. MUTE: Mute control input
20. VDD: Positive power supply

Functional Features

• High-quality audio amplification for stereo applications
• Low power consumption for extended battery life
• Wide supply voltage range allows flexibility in power source selection
• Shutdown control for power-saving mode
• Bypass capacitor connection for improved audio performance
• Mute control for audio muting when needed

Advantages and Disadvantages

Advantages: - Excellent audio quality - Low power consumption - Compact package size - Wide supply voltage range

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

Working Principles

The LM4802BLQX/NOPB operates as a class AB audio amplifier. It amplifies the audio signal received at the input pins and delivers it to the corresponding output pins. The amplifier ensures high fidelity audio reproduction with low distortion and noise.

Detailed Application Field Plans

The LM4802BLQX/NOPB is suitable for various audio applications, including but not limited to: - Portable audio devices (e.g., MP3 players, smartphones) - Headphone amplifiers - Multimedia speakers - Home theater systems - Automotive audio systems

Detailed and Complete Alternative Models

1. LM4863LQ/NOPB: Stereo audio amplifier with higher output power (3W per channel) and similar features.
2. LM386N-1/NOPB: Low voltage audio power amplifier with lower output power (0.325W) but simpler design and lower cost.
3. TPA3116D2PWPR: Class D audio amplifier with higher output power (50W per channel) and advanced digital audio processing capabilities.

These alternative models offer different specifications and features to cater to specific application requirements.

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