LM4863M/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Audio Power Amplifier

Characteristics: - High efficiency - Low distortion - Small package size - Wide supply voltage range

Package: 8-pin SOIC (Small Outline Integrated Circuit)

Essence: The LM4863M/NOPB is a stereo audio power amplifier IC designed for portable devices such as smartphones, tablets, and portable media players. It provides high-quality audio amplification with low distortion and high efficiency.

Packaging/Quantity: The LM4863M/NOPB is available in a 8-pin SOIC package. It is typically sold in reels of 2500 units.

Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Power: 1.1W per channel into 8Ω load at 5V supply
• Total Harmonic Distortion + Noise (THD+N): 0.1% at 1kHz, 1.2W output power
• Efficiency: 85% at 1kHz, 1.2W output power
• Shutdown Current: 0.6μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4863M/NOPB has the following pin configuration:

___________ | | NC |1 8| VDD IN+ |2 7| SHUTDOWN IN- |3 6| OUT- GND |4 5| OUT+ |___________|

Functional Features

• Stereo audio amplification
• Low quiescent current consumption
• Thermal shutdown protection
• Short-circuit and over-temperature protection
• Shutdown mode for power saving

Advantages and Disadvantages

Advantages: - High efficiency results in longer battery life for portable devices - Low distortion provides high-quality audio output - Small package size allows for compact device designs - Wide supply voltage range enables compatibility with various power sources

Disadvantages: - Limited output power may not be suitable for high-power audio applications - Requires external components for proper operation

Working Principles

The LM4863M/NOPB is a class AB stereo audio power amplifier. It amplifies the audio signal received at the input pins (IN+ and IN-) and drives the corresponding speakers connected to the output pins (OUT+ and OUT-). The amplifier operates in a bridge-tied load (BTL) configuration, which allows for increased output power.

The LM4863M/NOPB includes built-in protection features such as thermal shutdown, short-circuit protection, and over-temperature protection. These features ensure safe operation and prevent damage to the IC and connected speakers.

Detailed Application Field Plans

The LM4863M/NOPB is commonly used in portable electronic devices that require audio amplification, such as: - Smartphones - Tablets - Portable media players - Bluetooth speakers - Gaming consoles

Detailed and Complete Alternative Models

Some alternative models to the LM4863M/NOPB include: - LM4861M/NOPB - LM4862M/NOPB - LM4864M/NOPB - LM4865M/NOPB

These alternative models offer similar functionality and characteristics, but may have different output power ratings or package sizes.

In conclusion, the LM4863M/NOPB is a versatile audio power amplifier IC suitable for portable devices. Its high efficiency, low distortion, and small package size make it an ideal choice for applications where space and power consumption are critical.