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LM4867MTEX/NOPB
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LM4867MTEX/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: 20-TSSOP (Thin Shrink Small Outline Package)

Essence: The LM4867MTEX/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 LM4867MTEX/NOPB is available in tape and reel packaging, with 2500 units per reel.

Specifications

  • Supply Voltage Range: 2.5V to 5.5V
  • Output Power: 1.1W (4Ω, 10% THD+N)
  • Efficiency: 85%
  • Quiescent Current: 3.6mA
  • Shutdown Current: 0.01μA
  • Total Harmonic Distortion + Noise (THD+N): 0.2%
  • Signal-to-Noise Ratio (SNR): 90dB
  • Operating Temperature Range: -40°C to 85°C

Pin Configuration

The LM4867MTEX/NOPB has a 20-pin TSSOP package with the following pin configuration:

  1. SHUTDOWN
  2. GAIN
  3. BYPASS
  4. IN-
  5. IN+
  6. VDD
  7. OUT
  8. GND
  9. NC
  10. NC
  11. NC
  12. NC
  13. NC
  14. NC
  15. NC
  16. NC
  17. NC
  18. NC
  19. NC
  20. NC

Functional Features

  • Low Quiescent Current: The LM4867MTEX/NOPB operates with low quiescent current, making it suitable for battery-powered applications.
  • Wide Supply Voltage Range: It can operate within a wide supply voltage range of 2.5V to 5.5V, providing flexibility in various applications.
  • Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, preventing damage due to excessive heat.
  • Short-Circuit Protection: It features short-circuit protection, safeguarding the amplifier and connected components from potential damage.

Advantages and Disadvantages

Advantages: - Low power consumption - Wide supply voltage range - Thermal and short-circuit protection - High-quality audio amplification

Disadvantages: - Mono output only - Limited output power (1.1W)

Working Principles

The LM4867MTEX/NOPB is a Class AB audio power amplifier. It amplifies the input audio signal and delivers it to the connected speaker or load. The IC operates by converting the low-level audio signal into a higher-power output signal while maintaining low distortion and high efficiency.

Detailed Application Field Plans

The LM4867MTEX/NOPB is commonly used in various low-power audio applications, including but not limited to: - Portable audio devices - Mobile phones - Tablets - Bluetooth speakers - Gaming consoles - Personal computers

Alternative Models

Some alternative models that offer similar functionality to the LM4867MTEX/NOPB include: - TPA3116D2 - MAX98357A - PAM8403 - TDA7265 - STA540

These alternative models can be considered based on specific requirements and application needs.

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Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von LM4867MTEX/NOPB in technischen Lösungen auf

  1. What is the maximum power output of LM4867MTEX/NOPB?
    - The maximum power output of LM4867MTEX/NOPB is 1.1W per channel into an 8Ω load.

  2. What is the supply voltage range for LM4867MTEX/NOPB?
    - The supply voltage range for LM4867MTEX/NOPB is 2.7V to 5.5V.

  3. Can LM4867MTEX/NOPB be used in portable devices?
    - Yes, LM4867MTEX/NOPB is suitable for use in portable devices due to its low power consumption and small package size.

  4. Does LM4867MTEX/NOPB have built-in thermal shutdown protection?
    - Yes, LM4867MTEX/NOPB features built-in thermal shutdown protection to prevent overheating.

  5. What is the typical quiescent current of LM4867MTEX/NOPB?
    - The typical quiescent current of LM4867MTEX/NOPB is 4mA at a 3.6V supply voltage.

  6. Is LM4867MTEX/NOPB suitable for driving headphones?
    - Yes, LM4867MTEX/NOPB can drive headphones with its low distortion and noise performance.

  7. Can LM4867MTEX/NOPB operate in bridge-tied load (BTL) configuration?
    - Yes, LM4867MTEX/NOPB can operate in bridge-tied load (BTL) configuration for higher power output.

  8. What is the typical shutdown current of LM4867MTEX/NOPB?
    - The typical shutdown current of LM4867MTEX/NOPB is 0.6μA.

  9. Does LM4867MTEX/NOPB require external coupling capacitors?
    - No, LM4867MTEX/NOPB does not require external coupling capacitors, simplifying the design.

  10. Is LM4867MTEX/NOPB RoHS compliant?
    - Yes, LM4867MTEX/NOPB is RoHS compliant, making it suitable for environmentally friendly applications.