LM4854MTX/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High-performance, low-power stereo audio amplifier
• Package: Surface Mount Technology (SMT) package
• Essence: LM4854MTX/NOPB is a compact and efficient audio amplifier designed for portable electronic devices.
• Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Power Supply Voltage: 2.5V to 5.5V
• Output Power: Up to 1.1W per channel into 8Ω load at 5V supply voltage
• Total Harmonic Distortion + Noise: 0.1% (typical) at 1kHz, 1W output power
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4854MTX/NOPB has a total of 20 pins. The pin configuration is as follows:

1. VDD
2. GND
3. SD
4. SHUTDOWN
5. INL-
6. INL+
7. BYPASS
8. OUTL
9. OUTR
10. INR+
11. INR-
12. VDD
13. GND
14. VREF
15. AGND
16. AVDD
17. PVDD
18. PVSS
19. PGND
20. BST

Functional Features

• Low quiescent current consumption, making it suitable for battery-powered devices.
• Wide operating voltage range allows compatibility with various power sources.
• Built-in thermal shutdown protection prevents damage due to excessive heat.
• Short-circuit and overcurrent protection ensure the safety of the amplifier and connected devices.
• Integrated pop and click suppression circuitry for smooth power-on/off transitions.

Advantages and Disadvantages

Advantages: - High-performance audio amplification with low distortion. - Compact size and surface-mount package make it suitable for portable devices. - Wide operating voltage range allows flexibility in power supply selection. - Built-in protection features enhance reliability and prevent damage.

Disadvantages: - Limited output power compared to larger audio amplifiers. - May require additional external components for specific applications.

Working Principles

The LM4854MTX/NOPB is a stereo audio amplifier that operates by amplifying the input audio signals received from the left and right channels. It utilizes a Class AB amplifier architecture to provide high-quality audio reproduction with low distortion. The amplifier receives power from a DC power source and converts it into amplified audio signals that can drive speakers or headphones.

Detailed Application Field Plans

The LM4854MTX/NOPB is commonly used in various portable electronic devices, including:

1. Smartphones and tablets
2. Portable media players
3. Bluetooth speakers
4. Gaming consoles
5. Laptop computers

Its compact size, low power consumption, and high-performance characteristics make it an ideal choice for these applications, where space and battery life are crucial factors.

Detailed and Complete Alternative Models

1. TPA3116D2: A high-performance audio amplifier with higher output power and advanced features.
2. MAX98357A: An ultra-low-power audio amplifier designed for battery-powered devices.
3. TAS5720: A digital input audio amplifier with integrated audio processing capabilities.

These alternative models offer different specifications and features, allowing designers to choose the most suitable option based on their specific requirements.

Word count: 443 words