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LM4872ITP/NOPB
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LM4872ITP/NOPB

Product Overview

Category

LM4872ITP/NOPB belongs to the category of audio power amplifiers.

Use

It is used to amplify audio signals in various electronic devices such as mobile phones, tablets, and portable media players.

Characteristics

  • High efficiency
  • Low quiescent current
  • Thermal shutdown protection
  • Short-circuit protection

Package

The LM4872ITP/NOPB comes in a small outline package (SOP) with 8 pins.

Essence

The essence of LM4872ITP/NOPB lies in its ability to provide high-quality audio amplification in a compact and efficient package.

Packaging/Quantity

The LM4872ITP/NOPB is typically packaged in reels of 2500 units.

Specifications

  • Operating Voltage: 2.7V to 5.5V
  • Output Power: 1W per channel into 8Ω at 5V
  • Total Harmonic Distortion + Noise (THD+N): 0.2% (typical) at 1kHz, 1W, 8Ω
  • Shutdown Current: 0.6μA (typical)

Detailed Pin Configuration

  1. IN-
  2. IN+
  3. V-
  4. GND
  5. SHUTDOWN
  6. V+
  7. OUT-
  8. OUT+

Functional Features

  • Single supply operation
  • Differential inputs
  • External gain configuration
  • Low external component count

Advantages

  • Small form factor
  • Low power consumption
  • Built-in protection features
  • High efficiency

Disadvantages

  • Limited output power compared to larger amplifiers
  • Requires careful PCB layout for optimal performance

Working Principles

The LM4872ITP/NOPB operates by amplifying the input audio signal using an internal amplifier circuit. It utilizes a single supply voltage and differential inputs to efficiently amplify the audio signal while maintaining low power consumption.

Detailed Application Field Plans

The LM4872ITP/NOPB is well-suited for use in portable electronic devices where space and power efficiency are critical. It can be integrated into smartphones, tablets, portable speakers, and other battery-powered audio devices.

Detailed and Complete Alternative Models

Some alternative models to LM4872ITP/NOPB include: - LM4863: Similar audio power amplifier with different pin configuration - TPA2012: Higher power audio amplifier with similar features - MAX98306: Ultra-low power audio amplifier for battery-operated devices

In conclusion, the LM4872ITP/NOPB is a versatile audio power amplifier that offers high efficiency and low power consumption, making it ideal for use in portable electronic devices. Its compact package and built-in protection features make it a popular choice for designers looking to enhance the audio capabilities of their products while minimizing space and power requirements.

Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de LM4872ITP/NOPB en soluciones técnicas

  1. What is the LM4872ITP/NOPB?

    • The LM4872ITP/NOPB is a mono, bridged audio power amplifier designed for use in portable electronic devices.

  2. What is the typical application of the LM4872ITP/NOPB?

    • The LM4872ITP/NOPB is commonly used in applications such as mobile phones, PDAs, and other portable communication devices.

  3. What is the maximum output power of the LM4872ITP/NOPB?

    • The LM4872ITP/NOPB can deliver up to 750mW of continuous average power into an 8Ω load.

  4. What is the supply voltage range for the LM4872ITP/NOPB?

    • The LM4872ITP/NOPB operates from a single 2.7V to 5.5V supply, making it suitable for battery-powered applications.

  5. Does the LM4872ITP/NOPB require external components for operation?

    • Yes, the LM4872ITP/NOPB requires only a few external components for proper operation, including input and output coupling capacitors and feedback components.

  6. What is the typical efficiency of the LM4872ITP/NOPB?

    • The LM4872ITP/NOPB offers high efficiency, making it suitable for battery-powered applications where power consumption is critical.

  7. Is the LM4872ITP/NOPB suitable for driving headphones?

    • Yes, the LM4872ITP/NOPB is designed to drive headphones and can deliver high-quality audio output to headphone loads.

  8. What are the key features of the LM4872ITP/NOPB?

    • The LM4872ITP/NOPB features low quiescent current, shutdown mode, thermal shutdown protection, and short-circuit and thermal overload protection.

  9. Can the LM4872ITP/NOPB be used in stereo applications?

    • Yes, the LM4872ITP/NOPB can be configured for stereo operation by using two devices.

  10. Where can I find more detailed information about the LM4872ITP/NOPB?

    • Detailed information about the LM4872ITP/NOPB can be found in the datasheet provided by the manufacturer.