LM48555TL/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Amplifier

Characteristics: - Low power audio amplifier - Suitable for portable devices - Provides high-quality sound output - Efficient power consumption

Package: Thin Shrink Small Outline Package (TSSOP)

Essence: The LM48555TL/NOPB is a low power audio amplifier IC designed for use in portable devices. It offers high-quality sound output while consuming minimal power.

Packaging/Quantity: The LM48555TL/NOPB is typically packaged in reels, with each reel containing 2500 units.

Specifications

The LM48555TL/NOPB has the following specifications:

• Supply Voltage Range: 2.5V to 5.5V
• Output Power: Up to 1.4W per channel
• Total Harmonic Distortion + Noise (THD+N): 0.03% at 1kHz, 1.2W
• Efficiency: 85%
• Shutdown Current: 0.01µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM48555TL/NOPB has a total of 20 pins. The detailed pin configuration is as follows:

1. VDD (Power Supply)
2. GND (Ground)
3. SD (Shutdown Control)
4. INL- (Left Channel Negative Input)
5. INL+ (Left Channel Positive Input)
6. BYP (Bypass Capacitor Connection)
7. OUTL (Left Channel Output)
8. PVDD (Power Supply)
9. PGND (Ground)
10. INR- (Right Channel Negative Input)
11. INR+ (Right Channel Positive Input)
12. BYN (Bypass Capacitor Connection)
13. OUTR (Right Channel Output)
14. VDD (Power Supply)
15. GND (Ground)
16. BST (Boost Capacitor Connection)
17. FB (Feedback Input)
18. NC (No Connection)
19. PVDD (Power Supply)
20. PGND (Ground)

Functional Features

• Low power consumption
• High-quality audio output
• Shutdown control for power saving
• Bypass capacitor connection for improved performance
• Boost capacitor connection for enhanced efficiency

Advantages and Disadvantages

Advantages: - Low power consumption makes it suitable for portable devices - Provides high-quality sound output - Shutdown control feature helps in conserving power - Bypass and boost capacitor connections improve performance and efficiency

Disadvantages: - Limited output power compared to higher wattage amplifiers - May require additional external components for optimal performance

Working Principles

The LM48555TL/NOPB operates as a low power audio amplifier by amplifying the input audio signals received from the left and right channels. It utilizes internal circuitry to process and amplify the signals, providing high-quality sound output. The shutdown control feature allows the amplifier to be turned off when not in use, reducing power consumption.

Detailed Application Field Plans

The LM48555TL/NOPB is commonly used in various portable electronic devices, including:

1. Mobile phones
2. Tablets
3. Portable media players
4. Bluetooth speakers
5. Gaming consoles

Its low power consumption, compact size, and high-quality audio output make it ideal for these applications.

Detailed and Complete Alternative Models

1. LM4863LQ/NOPB - Low voltage audio power amplifier with shutdown control
2. LM4889MM/NOPB - Dual 1W audio power amplifier with shutdown control
3. LM4890MM/NOPB - Boomer audio power amplifier with shutdown control
4. LM4895MM/NOPB - 1.1W audio power amplifier with shutdown control
5. LM4950TL/NOPB - 2.8W mono filterless class D audio power amplifier

These alternative models offer similar functionality and features, providing options for different power requirements and application needs.

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