LM4857SP/NOPB

Product Overview

Category

LM4857SP/NOPB belongs to the category of audio amplifiers.

Use

It is used for amplifying audio signals in various electronic devices such as smartphones, tablets, and portable media players.

Characteristics

• High efficiency
• Low quiescent current
• Small package size
• Wide supply voltage range

Package

The LM4857SP/NOPB comes in a small outline package (SOP) with a specified pin configuration.

Essence

The essence of LM4857SP/NOPB lies in its ability to efficiently amplify audio signals while consuming minimal power.

Packaging/Quantity

The LM4857SP/NOPB is typically packaged in reels and is available in varying quantities depending on the manufacturer's specifications.

Specifications

• Power Supply Range: 2.4V to 5.5V
• Output Power: 1.1W at 3.6V, 10% THD+N, 8Ω Load
• Quiescent Current: 1.6mA
• Shutdown Current: 0.01μA
• Package Type: SOP-8

Detailed Pin Configuration

The detailed pin configuration of LM4857SP/NOPB includes: 1. VDD - Power supply input 2. SHDN - Shutdown control input 3. GND - Ground 4. OUT+ - Positive output 5. OUT- - Negative output 6. IN- - Negative input 7. IN+ - Positive input 8. Bypass - Bypass capacitor connection

Functional Features

• Low quiescent current in shutdown mode
• Thermal shutdown protection
• Short-circuit and thermal overload protection
• Differential inputs minimize common-mode noise

Advantages and Disadvantages

Advantages

• High efficiency
• Low power consumption
• Compact package size
• Protection features for enhanced reliability

Disadvantages

• Limited output power compared to higher wattage amplifiers
• May require external components for optimal performance in certain applications

Working Principles

The LM4857SP/NOPB operates by amplifying the input audio signal using internal circuitry and then delivering the amplified signal to the output while maintaining low power consumption and high efficiency.

Detailed Application Field Plans

The LM4857SP/NOPB is suitable for various applications including: - Portable electronic devices - Mobile phones - Tablets - Portable media players - Bluetooth speakers

Detailed and Complete Alternative Models

Some alternative models to LM4857SP/NOPB include: - LM4863 - LM4880 - TPA2012

In conclusion, the LM4857SP/NOPB is a versatile audio amplifier with high efficiency and low power consumption, making it suitable for a wide range of portable electronic devices.

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