LM48822TL/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Amplifier

Characteristics: - High efficiency - Low distortion - Wide supply voltage range - Thermal shutdown protection - Short-circuit and overcurrent protection

Package: Thin Shrink Small Outline Package (TSSOP)

Essence: The LM48822TL/NOPB is a high-performance audio amplifier designed for portable devices such as smartphones, tablets, and portable media players.

Packaging/Quantity: The LM48822TL/NOPB is typically sold in reels of 2500 units.

Specifications

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

Pin Configuration

The LM48822TL/NOPB has a total of 20 pins. Here is the detailed pin configuration:

1. INL-: Negative input for left channel
2. INL+: Positive input for left channel
3. VDD: Positive power supply
4. BYP: Bypass capacitor connection
5. GND: Ground
6. OUTL: Left channel output
7. SHDN: Shutdown control input
8. VDD: Positive power supply
9. BYP: Bypass capacitor connection
10. GND: Ground
11. OUTR: Right channel output
12. INR+: Positive input for right channel
13. INR-: Negative input for right channel
14. NC: No connection
15. NC: No connection
16. NC: No connection
17. NC: No connection
18. NC: No connection
19. NC: No connection
20. NC: No connection

Functional Features

• High efficiency audio amplifier
• Low distortion for high-quality sound reproduction
• Wide supply voltage range allows compatibility with various power sources
• Thermal shutdown protection prevents damage due to excessive heat
• Short-circuit and overcurrent protection ensures the safety of the device and connected speakers

Advantages and Disadvantages

Advantages: - High efficiency results in longer battery life for portable devices - Low distortion provides clear and accurate audio reproduction - Wide supply voltage range allows flexibility in power source selection - Thermal shutdown protection prevents damage from overheating - Short-circuit and overcurrent protection enhances safety

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

Working Principles

The LM48822TL/NOPB is a class AB audio amplifier that utilizes a bridge-tied load (BTL) configuration. It amplifies the audio signal received at the input pins and drives the connected speakers with sufficient power. The amplifier operates by modulating the input signal using a pair of complementary transistors, which reduces distortion and improves efficiency.

Detailed Application Field Plans

The LM48822TL/NOPB is commonly used in various portable electronic devices where audio amplification is required. Some application fields include:

1. Smartphones
2. Tablets
3. Portable media players
4. Bluetooth speakers
5. Gaming consoles
6. Personal digital assistants (PDAs)

Detailed and Complete Alternative Models

1. LM4863LQ/NOPB
2. TPA3110D2PWP
3. MAX98357AETE+T
4. TDA7491HV
5. STA540SAN

These alternative models offer similar functionality and can be considered as alternatives to the LM48822TL/NOPB based on specific requirements and design constraints.

In conclusion, the LM48822TL/NOPB is a high-performance audio amplifier designed for portable devices. It offers high efficiency, low distortion, and various protection features. Its compact package and wide supply voltage range make it suitable for a range of applications in the portable electronics industry.