LM48413TL/NOPB

Product Overview

• Category: Audio Amplifier
• Use: Amplifying audio signals for various applications
• Characteristics: High-quality sound reproduction, compact size, low power consumption
• Package: Thin QFN package
• Essence: Integrated audio amplifier solution
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

• Power Supply Voltage: 2.5V to 5.5V
• Output Power: Up to 1.3W per channel into 8Ω load at 5V
• Total Harmonic Distortion + Noise (THD+N): 0.03% (typical) at 1kHz, 1.2W output power
• Efficiency: Up to 90%
• Shutdown Current: <1µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM48413TL/NOPB features a 20-pin thin QFN package with the following pin configuration:

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

Functional Features

• Integrated stereo Class D audio amplifier
• Wide operating voltage range for flexibility
• Low quiescent current in shutdown mode for power saving
• Short-circuit and thermal protection for enhanced reliability
• Pop and click suppression during power-up and shutdown
• Flexible gain settings for different audio sources

Advantages

• High-quality sound reproduction with low distortion
• Compact size allows for space-saving designs
• Low power consumption for extended battery life
• Robust protection features ensure durability
• Easy integration into various audio applications

Disadvantages

• Limited output power compared to higher wattage amplifiers
• Requires external components for complete audio system implementation

Working Principles

The LM48413TL/NOPB is a stereo Class D audio amplifier that utilizes pulse width modulation (PWM) to amplify audio signals. It operates by converting the input audio signal into a series of high-frequency pulses, which are then amplified and filtered to produce the desired output. The Class D architecture ensures high efficiency and minimal power loss, making it suitable for portable devices with limited power resources.

Detailed Application Field Plans

The LM48413TL/NOPB can be used in various audio applications, including:

1. Portable media players
2. Mobile phones
3. Tablets and laptops
4. Bluetooth speakers
5. Gaming consoles
6. Automotive infotainment systems

Detailed Alternative Models

1. LM4863LQ/NOPB: Dual 2.2W Audio Amplifier with Shutdown Mode
2. LM4889MM/NOPB: 1.1W Audio Power Amplifier with Shutdown Mode
3. LM4890MM/NOPB: 1.1W Audio Power Amplifier with Shutdown Mode and Input Mux

These alternative models offer similar functionality and can be considered as alternatives to the LM48413TL/NOPB based on specific application requirements.

In conclusion, the LM48413TL/NOPB is a compact and efficient stereo Class D audio amplifier suitable for a wide range of portable audio applications. Its high-quality sound reproduction, low power consumption, and integrated protection features make it an ideal choice for designers looking to enhance audio performance in their products.