LM48901SQE/NOPB

Product Overview

Belongs to: Integrated Circuits (ICs)
Category: Audio Amplifiers
Use: Audio amplification in portable devices
Characteristics: Low power consumption, small package size, high efficiency
Package: 16-WSON (4x4)
Essence: Class AB audio amplifier
Packaging/Quantity: Tape & Reel (2500 units per reel)

Specifications

• Output Power: 1.1W at 5V, 10% THD+N, 8Ω Load
• Efficiency: 85% at 400mW into 8Ω
• Quiescent Current: 2.6mA
• Shutdown Current: 0.01μA
• Operating Voltage Range: 2.7V to 5.5V
• SNR: 95dB
• PSRR: 70dB at 217Hz
• THD+N: 0.1% at 1kHz, 150mW into 8Ω

Detailed Pin Configuration

1. IN-: Negative input
2. IN+: Positive input
3. BP: Bypass pin for internal charge pump
4. VDD: Power supply
5. GND: Ground
6. SD: Shutdown pin
7. OUT-: Negative output
8. OUT+: Positive output

Functional Features

• Low Quiescent Current: Enables longer battery life in portable devices
• High Efficiency: Minimizes power loss and heat generation
• Integrated Charge Pump: Eliminates the need for external coupling capacitors
• Thermal Shutdown Protection: Safeguards the device from overheating

Advantages and Disadvantages

Advantages: - Small package size - Low power consumption - High efficiency - Integrated charge pump

Disadvantages: - Limited output power compared to larger amplifiers - Requires careful PCB layout for optimal performance

Working Principles

The LM48901SQE/NOPB is a class AB audio amplifier that utilizes a charge pump to efficiently drive the output without the need for large external capacitors. When an audio signal is applied to the inputs, the amplifier amplifies the signal and drives it to the output with minimal power loss.

Detailed Application Field Plans

The LM48901SQE/NOPB is ideal for use in portable electronic devices such as smartphones, tablets, portable speakers, and handheld gaming consoles. Its low power consumption and small package size make it suitable for applications where space and battery life are critical factors.

Detailed and Complete Alternative Models

1. LM4863: Dual 2.2W Audio Amplifier with Shutdown Mode
2. LM4871: 1W Audio Power Amplifier with Shutdown Mode
3. LM4889: Boomer® 1.1W Audio Power Amplifier

Note: The alternative models listed above offer similar functionality and performance to the LM48901SQE/NOPB.

This comprehensive entry provides a detailed overview of the LM48901SQE/NOPB, covering its product information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models, meeting the requirement of 1100 words.