Texas Instruments
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LM4899ITL/NOPB
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LM4899ITL/NOPB

Product Overview

Category

LM4899ITL/NOPB belongs to the category of audio power amplifiers.

Use

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

Characteristics

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

Package

The LM4899ITL/NOPB comes in a small 16-pin leadless WQFN package.

Essence

The essence of LM4899ITL/NOPB lies in its ability to provide high-quality audio amplification in a compact and efficient package.

Packaging/Quantity

The LM4899ITL/NOPB is typically available in reels with a quantity of 2500 units per reel.

Specifications

  • Operating Voltage: 2.7V to 5.5V
  • Output Power: 1.1W at 10% THD into 8Ω
  • Shutdown Current: 0.01μA (typical)
  • Quiescent Current: 4mA (typical)

Detailed Pin Configuration

The LM4899ITL/NOPB has a 16-pin leadless WQFN package with the following pin configuration: 1. OUT- 2. OUT+ 3. GND 4. VDD 5. BYPASS 6. SHUTDOWN 7. MODE 8. VDD 9. GAIN 10. GND 11. IN- 12. IN+ 13. GND 14. GND 15. GND 16. GND

Functional Features

  • Single-ended or differential input
  • Adjustable gain
  • Thermal shutdown protection
  • Short-circuit protection
  • Low quiescent current

Advantages and Disadvantages

Advantages

  • High efficiency
  • Compact package
  • Low distortion
  • Thermal and short-circuit protection

Disadvantages

  • Limited output power compared to some higher-power amplifiers
  • Requires external components for operation

Working Principles

The LM4899ITL/NOPB operates by amplifying the input audio signal using an internal amplifier circuit. It provides thermal and short-circuit protection to ensure the safety of the device and connected speakers.

Detailed Application Field Plans

The LM4899ITL/NOPB is suitable for use in various portable electronic devices, including: - Smartphones - Tablets - Portable media players - Portable gaming devices

Detailed and Complete Alternative Models

Some alternative models to LM4899ITL/NOPB include: - LM4863 - LM4871 - LM4881 - LM4906

In conclusion, the LM4899ITL/NOPB is a compact and efficient audio power amplifier suitable for use in portable electronic devices, providing high-quality audio amplification while offering thermal and short-circuit protection.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням LM4899ITL/NOPB у технічних рішеннях

  1. What is the maximum power output of LM4899ITL/NOPB?
    - The maximum power output of LM4899ITL/NOPB is 1.1W into an 8Ω load at 5V.

  2. Can LM4899ITL/NOPB operate from a single supply voltage?
    - Yes, LM4899ITL/NOPB can operate from a single supply voltage ranging from 2.7V to 5.5V.

  3. What is the typical quiescent current of LM4899ITL/NOPB?
    - The typical quiescent current of LM4899ITL/NOPB is 4mA at 5V.

  4. Does LM4899ITL/NOPB have built-in thermal shutdown protection?
    - Yes, LM4899ITL/NOPB features built-in thermal shutdown protection to prevent overheating.

  5. Can LM4899ITL/NOPB be used in portable audio applications?
    - Yes, LM4899ITL/NOPB is suitable for use in portable audio applications due to its low power consumption and small package size.

  6. What is the recommended input voltage range for LM4899ITL/NOPB?
    - The recommended input voltage range for LM4899ITL/NOPB is 0.15V to 1.5V.

  7. Does LM4899ITL/NOPB require external coupling capacitors?
    - No, LM4899ITL/NOPB does not require external coupling capacitors, which simplifies the design.

  8. Is LM4899ITL/NOPB compatible with stereo audio signals?
    - Yes, LM4899ITL/NOPB is compatible with stereo audio signals and can drive two speakers simultaneously.

  9. Can LM4899ITL/NOPB be used in battery-powered devices?
    - Yes, LM4899ITL/NOPB is suitable for use in battery-powered devices due to its low power requirements.

  10. What is the package type of LM4899ITL/NOPB?
    - LM4899ITL/NOPB is available in a small 9-bump DSBGA package, making it suitable for space-constrained applications.