LM4869MH/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 Protection - Surface Mount Package

Package: PowerPAD™ HTSSOP-20

Essence: The LM4869MH/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 LM4869MH/NOPB is available in a PowerPAD™ HTSSOP-20 package. It is typically sold in reels of 2500 units.

Specifications

• Supply Voltage Range: 2.0V to 5.5V
• Output Power: 1.1W (typical) into 8Ω at 5V
• Total Harmonic Distortion + Noise (THD+N): 0.1% (typical) at 1kHz, 1.0W into 8Ω
• Quiescent Current: 4mA (typical)
• Shutdown Current: 0.6μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4869MH/NOPB has a total of 20 pins. Below is the detailed pin configuration:

Pin Number | Pin Name | Description -----------|----------|------------ 1 | SD | Shutdown Input 2 | GND | Ground 3 | IN- | Negative Differential Input 4 | IN+ | Positive Differential Input 5 | VDD | Positive Power Supply 6 | BYP | Bypass Capacitor Connection 7 | VOUT | Output 8 | GND | Ground 9 | GND | Ground 10 | GND | Ground 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 | PVDD | Positive Power Supply

Functional Features

• Low quiescent current consumption for power efficiency.
• Wide supply voltage range allows operation with various power sources.
• Thermal shutdown protection prevents the IC from overheating.
• Short-circuit protection safeguards the amplifier and connected speakers.
• Surface mount package enables easy integration into compact designs.

Advantages and Disadvantages

Advantages: - Low power consumption - High-quality audio amplification - Wide supply voltage range - Protection features for safe operation

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

Working Principles

The LM4869MH/NOPB is a Class AB audio power amplifier. It amplifies the input audio signal and provides an amplified output to drive a speaker or headphones. The amplifier operates in a low quiescent current mode, ensuring efficient power usage. It also incorporates thermal shutdown and short-circuit protection mechanisms to prevent damage to the IC and connected devices.

Detailed Application Field Plans

The LM4869MH/NOPB can be used in various applications, including but not limited to: - Portable audio devices - Mobile phones - Tablets - Personal computers - Gaming consoles - Home audio systems

Detailed and Complete Alternative Models

Some alternative models to the LM4869MH/NOPB include: - LM4869M/NOPB - LM4869MT/NOPB - LM4869MM/NOPB - LM4869MX/NOPB

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

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