LM4995TM/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Amplifier

Characteristics: - High-performance audio amplifier - Low distortion and noise - Wide supply voltage range - Small package size - Thermal shutdown protection

Package: 14-pin TSSOP (Thin Shrink Small Outline Package)

Essence: The LM4995TM/NOPB is a high-performance audio amplifier IC designed for various audio applications, including portable devices, headphones, and multimedia systems.

Packaging/Quantity: The LM4995TM/NOPB is available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Power: Up to 1.4W
• Total Harmonic Distortion + Noise (THD+N): 0.03% (typical)
• Signal-to-Noise Ratio (SNR): 100dB (typical)
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LM4995TM/NOPB has a 14-pin TSSOP package with the following pin configuration:

1. VDD: Positive power supply
2. GND: Ground reference
3. SD: Shutdown control input
4. INL: Left channel input
5. INR: Right channel input
6. BYP: Bypass capacitor connection
7. OUTL: Left channel output
8. OUTR: Right channel output
9. VREF: Reference voltage output
10. BST: Bootstrap capacitor connection
11. NC: No connection
12. NC: No connection
13. NC: No connection
14. NC: No connection

Functional Features

• High-quality audio amplification
• Low distortion and noise for improved sound reproduction
• Wide supply voltage range allows flexibility in power source selection
• Thermal shutdown protection prevents damage due to excessive heat

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Low distortion and noise levels - Compact package size for space-constrained applications - Wide supply voltage range for versatile power source options

Disadvantages: - Limited output power compared to higher wattage amplifiers - Requires external components for proper operation

Working Principles

The LM4995TM/NOPB operates as a class AB audio amplifier. It amplifies the input audio signals received from the left and right channels, providing an amplified output to drive speakers or headphones. The amplifier circuitry ensures low distortion and noise levels, resulting in high-quality audio reproduction.

Detailed Application Field Plans

The LM4995TM/NOPB is suitable for various audio applications, including but not limited to: - Portable devices such as smartphones, tablets, and portable media players - Headphone amplifiers for improved audio performance - Multimedia systems, including laptops, desktop computers, and home theater systems

Detailed and Complete Alternative Models

1. LM4863: Dual 2.2W Audio Amplifier
2. TPA3116D2: 50W Stereo Class D Audio Amplifier
3. MAX9744: 20W Stereo Class D Audio Power Amplifier
4. TDA7498E: 160W + 160W Dual BTL Class-D Audio Amplifier

These alternative models offer different power outputs and features, allowing users to select the most suitable amplifier for their specific requirements.

Word count: 431 words