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LM48413TL/NOPB

LM48413TL/NOPB

Product Overview

  • Category: Audio Amplifier
  • Use: Amplifying audio signals for various applications
  • Characteristics: High-quality sound reproduction, compact size, low power consumption
  • Package: Thin QFN package
  • Essence: Integrated audio amplifier solution
  • Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

  • Power Supply Voltage: 2.5V to 5.5V
  • Output Power: Up to 1.3W per channel into 8Ω load at 5V
  • Total Harmonic Distortion + Noise (THD+N): 0.03% (typical) at 1kHz, 1.2W output power
  • Efficiency: Up to 90%
  • Shutdown Current: <1µA (typical)
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM48413TL/NOPB features a 20-pin thin QFN package with the following pin configuration:

  1. VDD
  2. SDZ
  3. SD
  4. GND
  5. INL-
  6. INL+
  7. BYP
  8. OUTL
  9. PVDD
  10. PVSS
  11. PGND
  12. OUTR
  13. INR+
  14. INR-
  15. SHUTDOWN
  16. MODE
  17. BST
  18. BIAS
  19. VREF
  20. VDD

Functional Features

  • Integrated stereo Class D audio amplifier
  • Wide operating voltage range for flexibility
  • Low quiescent current in shutdown mode for power saving
  • Short-circuit and thermal protection for enhanced reliability
  • Pop and click suppression during power-up and shutdown
  • Flexible gain settings for different audio sources

Advantages

  • High-quality sound reproduction with low distortion
  • Compact size allows for space-saving designs
  • Low power consumption for extended battery life
  • Robust protection features ensure durability
  • Easy integration into various audio applications

Disadvantages

  • Limited output power compared to higher wattage amplifiers
  • Requires external components for complete audio system implementation

Working Principles

The LM48413TL/NOPB is a stereo Class D audio amplifier that utilizes pulse width modulation (PWM) to amplify audio signals. It operates by converting the input audio signal into a series of high-frequency pulses, which are then amplified and filtered to produce the desired output. The Class D architecture ensures high efficiency and minimal power loss, making it suitable for portable devices with limited power resources.

Detailed Application Field Plans

The LM48413TL/NOPB can be used in various audio applications, including:

  1. Portable media players
  2. Mobile phones
  3. Tablets and laptops
  4. Bluetooth speakers
  5. Gaming consoles
  6. Automotive infotainment systems

Detailed Alternative Models

  1. LM4863LQ/NOPB: Dual 2.2W Audio Amplifier with Shutdown Mode
  2. LM4889MM/NOPB: 1.1W Audio Power Amplifier with Shutdown Mode
  3. LM4890MM/NOPB: 1.1W Audio Power Amplifier with Shutdown Mode and Input Mux

These alternative models offer similar functionality and can be considered as alternatives to the LM48413TL/NOPB based on specific application requirements.

In conclusion, the LM48413TL/NOPB is a compact and efficient stereo Class D audio amplifier suitable for a wide range of portable audio applications. Its high-quality sound reproduction, low power consumption, and integrated protection features make it an ideal choice for designers looking to enhance audio performance in their products.

Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi LM48413TL/NOPB dalam penyelesaian teknikal

  1. What is the maximum output power of LM48413TL/NOPB?
    - The maximum output power of LM48413TL/NOPB is 3.2W into 3Ω at 5V.

  2. What is the input voltage range for LM48413TL/NOPB?
    - The input voltage range for LM48413TL/NOPB is 2.7V to 5.5V.

  3. Can LM48413TL/NOPB be used in portable audio applications?
    - Yes, LM48413TL/NOPB is suitable for portable audio applications due to its low power consumption and small footprint.

  4. Does LM48413TL/NOPB require external components for operation?
    - LM48413TL/NOPB requires minimal external components for operation, making it suitable for compact designs.

  5. What is the typical efficiency of LM48413TL/NOPB?
    - The typical efficiency of LM48413TL/NOPB is around 85% at 1W into 8Ω.

  6. Is LM48413TL/NOPB suitable for driving headphones?
    - Yes, LM48413TL/NOPB can drive stereo headphones with its integrated headphone amplifier.

  7. Can LM48413TL/NOPB operate from a single supply voltage?
    - Yes, LM48413TL/NOPB operates from a single supply voltage, simplifying the design process.

  8. What protection features does LM48413TL/NOPB offer?
    - LM48413TL/NOPB includes short-circuit and thermal overload protection for reliable operation.

  9. Is LM48413TL/NOPB compatible with digital signal processing (DSP) systems?
    - Yes, LM48413TL/NOPB is compatible with DSP systems and offers flexibility in audio processing.

  10. What package options are available for LM48413TL/NOPB?
    - LM48413TL/NOPB is available in a small 24-pin WQFN package for space-constrained applications.