LM4883SQ/NOPB
Product Overview
Category: Integrated Circuit (IC)
Use: Audio Amplifier
Characteristics: - High-performance stereo audio amplifier - Low distortion and noise - Wide supply voltage range - Small package size - Thermal shutdown protection
Package: 20-pin LLP (Leadless Leadframe Package)
Essence: The LM4883SQ/NOPB is a high-performance stereo audio amplifier IC designed for various audio applications.
Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.
Specifications
- Supply Voltage Range: 2.7V to 5.5V
- Output Power: 1.1W per channel into 8Ω load at 5V supply
- Total Harmonic Distortion + Noise (THD+N): 0.1% (typical) at 1kHz, 1.2W output power
- Shutdown Current: 0.01μA (typical)
- Operating Temperature Range: -40°C to +85°C
Pin Configuration
The LM4883SQ/NOPB has a 20-pin LLP package with the following pin configuration:
Pin 1: Shutdown
Pin 2: Gain Select
Pin 3: Input B+
Pin 4: Input B-
Pin 5: Output B
Pin 6: GND
Pin 7: Output A
Pin 8: Input A-
Pin 9: Input A+
Pin 10: VDD
Pin 11: Bypass
Pin 12: Mute
Pin 13: Thermal Pad
Pin 14: NC
Pin 15: NC
Pin 16: NC
Pin 17: NC
Pin 18: NC
Pin 19: NC
Pin 20: NC
Functional Features
- High-quality audio amplification for stereo applications
- Low distortion and noise for improved audio fidelity
- Wide supply voltage range allows flexibility in power source selection
- Thermal shutdown protection prevents damage due to excessive heat
- Shutdown pin for power-saving mode
- Gain select pin for adjusting amplifier gain
- Bypass pin for direct signal path
- Mute pin for audio muting functionality
Advantages and Disadvantages
Advantages: - High-performance audio amplification - Low distortion and noise - Wide supply voltage range - Small package size for space-constrained designs - Thermal shutdown protection for enhanced reliability
Disadvantages: - Limited output power compared to higher wattage amplifiers - Requires external components for complete audio system integration
Working Principles
The LM4883SQ/NOPB operates as a stereo audio amplifier by amplifying the input audio signals and delivering them to the connected speakers. It utilizes a class AB amplifier configuration to achieve low distortion and noise levels. The amplifier's gain can be adjusted using the gain select pin, allowing customization based on specific application requirements. The thermal shutdown protection feature ensures that the IC shuts down when the temperature exceeds a safe threshold, preventing damage to the device.
Detailed Application Field Plans
The LM4883SQ/NOPB is suitable for various audio applications, including but not limited to: - Portable audio devices - Headphone amplifiers - Multimedia speakers - Home theater systems - Automotive audio systems
Detailed and Complete Alternative Models
- LM4881SQ/NOPB - Similar audio amplifier IC with lower output power.
- LM4884SQ/NOPB - Similar audio amplifier IC with higher output power.
- LM4863SQ/NOPB - Audio amplifier IC with integrated shutdown and mute functions.
These alternative models provide options with varying specifications and features to cater to different application requirements.
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Luettele 10 yleistä kysymystä ja vastausta, jotka liittyvät LM4883SQ/NOPB :n soveltamiseen teknisissä ratkaisuissa
Question: What is the maximum power output of LM4883SQ/NOPB?
Answer: The LM4883SQ/NOPB has a maximum power output of 1.1W per channel into an 8Ω load.Question: What is the supply voltage range for LM4883SQ/NOPB?
Answer: The supply voltage range for LM4883SQ/NOPB is 2.7V to 5.5V.Question: Can LM4883SQ/NOPB be used in portable devices?
Answer: Yes, LM4883SQ/NOPB's low supply voltage and small package make it suitable for portable applications.Question: Does LM4883SQ/NOPB require external bootstrap capacitors?
Answer: No, LM4883SQ/NOPB does not require external bootstrap capacitors, simplifying the design.Question: What is the typical quiescent current of LM4883SQ/NOPB?
Answer: The typical quiescent current of LM4883SQ/NOPB is 4.6mA.Question: Is LM4883SQ/NOPB suitable for headphone amplification?
Answer: Yes, LM4883SQ/NOPB can be used for driving headphones with its low distortion and noise.Question: Can LM4883SQ/NOPB operate in bridge-tied load (BTL) configuration?
Answer: Yes, LM4883SQ/NOPB can operate in BTL configuration for higher power output.Question: What is the thermal shutdown temperature of LM4883SQ/NOPB?
Answer: The thermal shutdown temperature of LM4883SQ/NOPB is typically 150°C.Question: Does LM4883SQ/NOPB have built-in short-circuit protection?
Answer: Yes, LM4883SQ/NOPB features built-in short-circuit and thermal overload protection.Question: What is the package type of LM4883SQ/NOPB?
Answer: LM4883SQ/NOPB is available in a small 14-pin LLP package for space-constrained designs.