LM4941TMX/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Power Amplifier
• Characteristics: High-performance, low-power audio amplifier
• Package: 14-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: Provides amplification and control for audio signals
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 2.7V to 5.5V
• Output Power: 1.1W (8Ω, 5V)
• Total Harmonic Distortion + Noise: 0.1% (1kHz, 0.5W)
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4941TMX/NOPB has a total of 14 pins. The pin configuration is as follows:

1. Shutdown (SD)
2. Input Left (INL)
3. Input Right (INR)
4. Ground (GND)
5. Output Left (OUTL)
6. Output Right (OUTR)
7. Bypass Capacitor (BP)
8. Gain Control (GC)
9. Mute Control (MUTE)
10. Mode Select (MODE)
11. Supply Voltage (VCC)
12. Bypass Capacitor (BP)
13. Bypass Capacitor (BP)
14. Shutdown (SD)

Functional Features

• High-quality audio amplification with low distortion
• Wide supply voltage range allows flexibility in power source selection
• Shutdown mode for power-saving when not in use
• Built-in gain and mute control for easy audio adjustment
• Multiple bypass capacitors for improved stability and noise reduction

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Low power consumption - Compact package size - Flexible supply voltage range

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

Working Principles

The LM4941TMX/NOPB is an audio power amplifier that takes input audio signals and amplifies them to a level suitable for driving speakers or headphones. It operates by receiving audio signals through the input pins (INL and INR), amplifying them using internal circuitry, and delivering the amplified signals to the output pins (OUTL and OUTR). The gain control pin (GC) allows adjustment of the amplification level, while the mute control pin (MUTE) enables the user to silence the audio output when needed. The device can be powered from a wide range of supply voltages, making it versatile for various applications.

Detailed Application Field Plans

The LM4941TMX/NOPB is commonly used in portable audio devices such as smartphones, tablets, MP3 players, and portable gaming consoles. Its low power consumption and compact package make it ideal for battery-powered devices. Additionally, it can be utilized in automotive audio systems, computer peripherals, and other consumer electronics where high-quality audio amplification is required.

Detailed and Complete Alternative Models

• LM4861MX/NOPB
• TPA301DGNR
• MAX98357AETE+T
• PAM8406DR
• TDA7266SA

These alternative models offer similar functionality and performance characteristics to the LM4941TMX/NOPB and can be considered as alternatives depending on specific application requirements.

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