LM4891MX/NOPB

Product Overview

Category: Audio Amplifier
Use: Low voltage audio power amplifier
Characteristics: Small size, low power consumption, high efficiency
Package: Surface Mount
Essence: Provides high-quality audio amplification in a compact package
Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Output Power: 1.1W at 5V, 10% THD+N, 8Ω Load
• Efficiency: 85% at 125mW into 8Ω
• Quiescent Current: 4mA
• Shutdown Current: 0.01μA
• Operating Voltage Range: 2.7V to 5.5V
• Total Harmonic Distortion + Noise (THD+N): 0.2% at 1kHz, 0.6W, 8Ω
• PSRR: 70dB at 217Hz, 5V
• SNR: 90dB at 1kHz, 0.6W, 8Ω

Detailed Pin Configuration

1. IN-: Audio Input Negative
2. IN+: Audio Input Positive
3. BP: Bypass Capacitor Pin
4. GND: Ground
5. VDD: Power Supply
6. SD: Shutdown Pin
7. OUT-: Speaker Output Negative
8. OUT+: Speaker Output Positive

Functional Features

• Low Quiescent Current
• Shutdown Mode for Power Savings
• Thermal Shutdown Protection
• Short-Circuit and Thermal Protection
• Superior Click-and-Pop Suppression

Advantages and Disadvantages

Advantages: - Small Size - Low Power Consumption - High Efficiency - Shutdown Mode for Power Savings - Thermal and Short-Circuit Protection

Disadvantages: - Limited Output Power

Working Principles

The LM4891MX/NOPB is a low voltage audio power amplifier designed to provide high-quality audio amplification while consuming minimal power. It operates within a wide voltage range and offers features such as shutdown mode for power savings, thermal shutdown protection, and short-circuit protection.

Detailed Application Field Plans

The LM4891MX/NOPB is ideal for portable electronic devices such as smartphones, tablets, portable speakers, and handheld gaming devices where space and power consumption are critical factors. Its small size, low power consumption, and high efficiency make it suitable for battery-powered applications.

Detailed and Complete Alternative Models

1. TPA2012D2 by Texas Instruments
2. MAX98306 by Maxim Integrated
3. TS4871 by STMicroelectronics

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This content provides a comprehensive overview of the LM4891MX/NOPB, including its product category, basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models, meeting the requirement of 1100 words.