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LM4872IBP
Product Overview
Category: Integrated Circuit (IC)
Use: Audio Power Amplifier
Characteristics: - High-quality audio amplification - Low power consumption - Compact size - Wide voltage range operation
Package: DIP (Dual Inline Package)
Essence: The LM4872IBP is a high-performance audio power amplifier IC designed for portable electronic devices such as smartphones, tablets, and portable media players.
Packaging/Quantity: The LM4872IBP is typically sold in reels or tubes containing a specified quantity of ICs.
Specifications
The LM4872IBP has the following specifications:
- Supply Voltage Range: 2.0V to 5.5V
- Output Power: Up to 1.1W (8Ω, 5V)
- Total Harmonic Distortion (THD): 0.1% (1kHz, 8Ω, 150mW)
- Efficiency: 85%
- Shutdown Current: 0.01μA (typical)
- Operating Temperature Range: -40°C to +85°C
Pin Configuration
The LM4872IBP features an 8-pin Dual Inline Package (DIP) with the following pin configuration:
Pin 1: Gain Select
Pin 2: Input
Pin 3: GND (Ground)
Pin 4: VDD (Power Supply)
Pin 5: Bypass Capacitor
Pin 6: Shutdown
Pin 7: Output
Pin 8: Gain Select
Functional Features
The LM4872IBP offers the following functional features:
- Single-ended or bridge-tied load (BTL) output configuration
- Adjustable gain settings
- Thermal shutdown protection
- Short-circuit and over-temperature protection
- Pop and click reduction circuitry
Advantages and Disadvantages
Advantages: - High-quality audio amplification - Low power consumption - Compact size for portable devices - Wide voltage range operation allows flexibility in power supply options
Disadvantages: - Limited output power compared to higher wattage amplifiers - Requires external components for optimal performance
Working Principles
The LM4872IBP operates as a class AB audio power amplifier. It amplifies the audio signal received at the input pin and delivers it to the connected speaker or headphone. The gain select pins allow for adjustable amplification levels, providing flexibility for different audio sources and output devices.
Detailed Application Field Plans
The LM4872IBP is commonly used in various portable electronic devices, including: - Smartphones - Tablets - Portable media players - Bluetooth speakers - Gaming consoles
Detailed and Complete Alternative Models
Some alternative models to the LM4872IBP include: - LM4863 - TPA3116D2 - MAX98357A
These alternative models offer similar functionality and can be considered based on specific application requirements.
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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de LM4872IBP en soluciones técnicas
Sure! Here are 10 common questions and answers related to the application of LM4872IBP in technical solutions:
Q: What is LM4872IBP? A: LM4872IBP is a stereo audio amplifier integrated circuit (IC) commonly used in various technical solutions.
Q: What is the power supply voltage range for LM4872IBP? A: The power supply voltage range for LM4872IBP is typically between 2.7V and 5.5V.
Q: What is the output power capability of LM4872IBP? A: LM4872IBP can deliver up to 1.1W per channel into an 8-ohm load with a 5V power supply.
Q: Can LM4872IBP be used in portable devices? A: Yes, LM4872IBP is suitable for use in portable devices due to its low power consumption and compact size.
Q: Does LM4872IBP require external components for operation? A: Yes, LM4872IBP requires a few external components such as capacitors, resistors, and input/output coupling capacitors for proper operation.
Q: What is the typical gain range of LM4872IBP? A: The typical gain range of LM4872IBP is from 20dB to 40dB, which can be adjusted using external resistors.
Q: Can LM4872IBP drive headphones directly? A: Yes, LM4872IBP can drive headphones directly as it has a built-in headphone driver circuit.
Q: Is LM4872IBP suitable for battery-powered applications? A: Yes, LM4872IBP is suitable for battery-powered applications due to its low power consumption and wide operating voltage range.
Q: Can LM4872IBP be used in automotive audio systems? A: Yes, LM4872IBP can be used in automotive audio systems as it is designed to operate in a wide temperature range and has built-in protection features.
Q: What are the typical applications of LM4872IBP? A: LM4872IBP is commonly used in portable audio devices, smartphones, tablets, laptops, gaming consoles, and other consumer electronics where audio amplification is required.
Please note that these answers are general and may vary depending on specific design requirements and application scenarios.