LM4808MM/NOPB
Product Overview
Category: Integrated Circuit (IC)
Use: Audio Amplifier
Characteristics: - Mono audio amplifier - Low voltage operation - Small package size - High efficiency - Low distortion
Package: Miniature 8-pin MSOP (Micro Small Outline Package)
Essence: The LM4808MM/NOPB is a mono audio amplifier IC designed for low voltage applications. It provides high-quality audio amplification with low distortion and high efficiency.
Packaging/Quantity: The LM4808MM/NOPB is available in tape and reel packaging, with 2500 units per reel.
Specifications
- Supply Voltage Range: 2.7V to 5.5V
- Output Power: 1.25W (4Ω load, 5V supply)
- Total Harmonic Distortion: 0.1% (1W, 1kHz)
- Efficiency: 85% (1W, 5V supply)
- Shutdown Current: 0.01μA (typical)
Pin Configuration
The LM4808MM/NOPB has the following pin configuration:
```
| | --| VDD GND|-- Pin 1: Ground --| INP SHDN|-- Pin 2: Shutdown Control --| INN OUT|-- Pin 3: Output --| BIAS VOUT|-- Pin 4: Output |___________| ```
Functional Features
- Low voltage operation allows for battery-powered applications.
- High efficiency ensures longer battery life.
- Low distortion provides high-quality audio output.
- Shutdown control feature allows for power saving when not in use.
Advantages and Disadvantages
Advantages: - Suitable for low voltage applications - Small package size for space-constrained designs - High efficiency for longer battery life - Low distortion for high-quality audio output
Disadvantages: - Mono audio amplifier, not suitable for stereo applications - Limited output power compared to higher wattage amplifiers
Working Principles
The LM4808MM/NOPB is a class AB audio amplifier that operates on low voltage. It uses a bridge-tied load (BTL) configuration to provide a single-ended output with increased power capability. The amplifier amplifies the input audio signal and drives the connected speaker or headphone.
Detailed Application Field Plans
The LM4808MM/NOPB is commonly used in various portable audio devices, such as: - Mobile phones - MP3 players - Portable gaming consoles - Bluetooth speakers - Personal digital assistants (PDAs)
Detailed and Complete Alternative Models
Some alternative models to the LM4808MM/NOPB include: - LM4861MM/NOPB - LM4871MM/NOPB - LM4890MM/NOPB - TPA2005D1PWPR - TPA2012D2PWPR
These alternative models offer similar functionality and can be used as replacements depending on specific design requirements.
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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av LM4808MM/NOPB i tekniska lösningar
Question: What is the typical application of LM4808MM/NOPB?
Answer: The LM4808MM/NOPB is commonly used as a headphone amplifier in portable audio devices.Question: What is the maximum supply voltage for LM4808MM/NOPB?
Answer: The maximum supply voltage for LM4808MM/NOPB is 5.5V.Question: Can LM4808MM/NOPB be used in battery-powered devices?
Answer: Yes, LM4808MM/NOPB is suitable for use in battery-powered devices due to its low power consumption.Question: What is the output power capability of LM4808MM/NOPB?
Answer: LM4808MM/NOPB can deliver up to 80mW per channel into a 16Ω load.Question: Is LM4808MM/NOPB suitable for driving high-impedance headphones?
Answer: Yes, LM4808MM/NOPB is designed to drive headphones with impedances ranging from 16Ω to 300Ω.Question: Does LM4808MM/NOPB require external coupling capacitors?
Answer: No, LM4808MM/NOPB does not require external coupling capacitors, which simplifies the design.Question: What is the typical total harmonic distortion (THD) of LM4808MM/NOPB?
Answer: The typical THD of LM4808MM/NOPB is 0.1% at 1kHz and 10mW into 16Ω.Question: Can LM4808MM/NOPB operate from a single supply voltage?
Answer: Yes, LM4808MM/NOPB can operate from a single supply voltage, making it suitable for various applications.Question: What is the quiescent current consumption of LM4808MM/NOPB?
Answer: The quiescent current consumption of LM4808MM/NOPB is typically 0.6mA, making it energy-efficient.Question: Is LM4808MM/NOPB available in a small package for space-constrained designs?
Answer: Yes, LM4808MM/NOPB is available in a small MSOP-8 package, making it suitable for space-constrained designs.