LM4841MH/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Amplifier

Characteristics: - Mono Class AB Audio Power Amplifier - Low Quiescent Current - Wide Supply Voltage Range - Thermal Shutdown Protection - Short-Circuit and Thermal Protection - Surface Mount Package

Package: PowerPAD™ HTSSOP-20

Essence: The LM4841MH/NOPB is a mono audio power amplifier IC designed for low-power applications. It provides high-quality audio amplification with low quiescent current consumption.

Packaging/Quantity: The LM4841MH/NOPB is available in a PowerPAD™ HTSSOP-20 package. It is typically sold in reels of 2500 units.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Power: Up to 1.5W into 8Ω at 5V
• Total Harmonic Distortion + Noise (THD+N): 0.1% (typical)
• Efficiency: 85% (typical)
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4841MH/NOPB has a total of 20 pins. Below is the detailed pin configuration:

Pin Number | Pin Name | Description -----------|----------|------------ 1 | SD | Shutdown Input 2 | INP | Non-Inverting Input 3 | INN | Inverting Input 4 | GND | Ground 5 | VDD | Positive Power Supply 6 | BYP | Bypass Capacitor Connection 7 | OUT | Output 8 | PVDD | Positive Power Supply 9 | PVSS | Negative Power Supply 10 | VOUT | Output 11 | GND | Ground 12 | GND | Ground 13 | GND | Ground 14 | GND | Ground 15 | GND | Ground 16 | GND | Ground 17 | GND | Ground 18 | GND | Ground 19 | GND | Ground 20 | GND | Ground

Functional Features

• Low quiescent current consumption for power efficiency.
• Wide supply voltage range allows flexibility in various applications.
• Thermal shutdown protection prevents the IC from overheating.
• Short-circuit and thermal protection ensure the safety of the amplifier and connected devices.
• Surface mount package enables easy integration into compact designs.

Advantages and Disadvantages

Advantages: - Low power consumption - High-quality audio amplification - Wide supply voltage range - Thermal and short-circuit protection

Disadvantages: - Mono output only - Limited output power compared to higher wattage amplifiers

Working Principles

The LM4841MH/NOPB is a Class AB audio power amplifier. It amplifies the input audio signal and provides an amplified output to drive a speaker or other audio devices. The IC operates by modulating the input signal using a combination of transistors, resulting in an amplified output with low distortion and high fidelity.

Detailed Application Field Plans

The LM4841MH/NOPB is suitable for various low-power audio applications, including but not limited to: - Portable audio devices - Mobile phones - Tablets - Bluetooth speakers - Gaming consoles - Personal computers

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the LM4841MH/NOPB are: - LM4861 - TPA2005D1 - MAX98357A

These alternative models offer similar functionality and characteristics, providing options for different design requirements.

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