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LM48410SQX/NOPB
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LM48410SQX/NOPB

Product Overview

  • Category: Audio Amplifier
  • Use: Amplifying audio signals for various applications
  • Characteristics: High-quality audio amplification, compact size, low power consumption
  • Package: 32-WQFN (5x5)
  • Essence: Integrated audio amplifier solution
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Power Supply Voltage: 2.7V to 5.5V
  • Output Power: Up to 1.2W per channel
  • Total Harmonic Distortion + Noise: 0.03% (typical)
  • Shutdown Current: 0.01µA (typical)
  • Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM48410SQX/NOPB has a 32-pin WQFN package with the following pin configuration:

  1. VDD
  2. GND
  3. SDZ
  4. SDA
  5. SCL
  6. NC
  7. NC
  8. NC
  9. NC
  10. NC
  11. NC
  12. NC
  13. NC
  14. NC
  15. NC
  16. NC
  17. NC
  18. NC
  19. NC
  20. NC
  21. NC
  22. NC
  23. NC
  24. NC
  25. NC
  26. NC
  27. NC
  28. NC
  29. NC
  30. NC
  31. LOUT
  32. ROUT

Functional Features

  • Integrated stereo Class D audio amplifier
  • Automatic gain control (AGC) for volume leveling
  • I2C control interface for easy integration
  • Thermal shutdown protection
  • Short-circuit and overcurrent protection

Advantages and Disadvantages

Advantages: - High-quality audio amplification - Compact size for space-constrained applications - Low power consumption for extended battery life - Easy integration with I2C control interface

Disadvantages: - Limited output power compared to higher wattage amplifiers - Requires external components for full functionality

Working Principles

The LM48410SQX/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 digital pulses, which are then amplified and filtered to produce the desired output. The integrated AGC ensures consistent volume levels, while the thermal shutdown and protection features safeguard the amplifier from damage.

Detailed Application Field Plans

The LM48410SQX/NOPB is suitable for various audio amplification applications, including:

  1. Portable devices such as smartphones, tablets, and portable media players
  2. Bluetooth speakers and wireless audio systems
  3. Gaming consoles and handheld gaming devices
  4. Automotive infotainment systems
  5. Home audio equipment

Alternative Models

  1. LM4863SQX/NOPB: Similar audio amplifier with higher output power (up to 2.2W per channel)
  2. LM4890SQX/NOPB: Audio amplifier with integrated headphone driver
  3. LM4950SQX/NOPB: Stereo Class D audio amplifier with advanced power management features

These alternative models offer different specifications and features to cater to specific application requirements.

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Luettele 10 yleistä kysymystä ja vastausta, jotka liittyvät LM48410SQX/NOPB :n soveltamiseen teknisissä ratkaisuissa

  1. What is the maximum output power of LM48410SQX/NOPB?
    - The maximum output power of LM48410SQX/NOPB is 1.2W per channel into 8Ω loads.

  2. What is the input voltage range for LM48410SQX/NOPB?
    - The input voltage range for LM48410SQX/NOPB is 2.7V to 5.5V.

  3. Can LM48410SQX/NOPB be used in portable audio applications?
    - Yes, LM48410SQX/NOPB is suitable for portable audio applications due to its low power consumption and small footprint.

  4. Does LM48410SQX/NOPB require external coupling capacitors?
    - No, LM48410SQX/NOPB does not require external coupling capacitors, which simplifies the design and reduces component count.

  5. What is the typical efficiency of LM48410SQX/NOPB?
    - The typical efficiency of LM48410SQX/NOPB is around 85% at 1W output power.

  6. Can LM48410SQX/NOPB operate from a single supply voltage?
    - Yes, LM48410SQX/NOPB can operate from a single supply voltage, making it suitable for battery-powered applications.

  7. What is the thermal shutdown temperature of LM48410SQX/NOPB?
    - The thermal shutdown temperature of LM48410SQX/NOPB is approximately 150°C.

  8. Is LM48410SQX/NOPB compatible with stereo headphone applications?
    - Yes, LM48410SQX/NOPB is designed for stereo headphone applications and supports stereo headphone outputs.

  9. What is the total harmonic distortion (THD) of LM48410SQX/NOPB?
    - The THD of LM48410SQX/NOPB is typically less than 1% at 1kHz and 0.5W output power.

  10. Can LM48410SQX/NOPB be used in automotive audio systems?
    - Yes, LM48410SQX/NOPB is suitable for automotive audio systems due to its wide input voltage range and robust performance.