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LM4819M/NOPB
Product Overview
Category: Audio Amplifier
Use: The LM4819M/NOPB is a mono, bridged audio power amplifier designed for use in portable electronic devices.
Characteristics: It features low quiescent current, low distortion, and a low shutdown current of 0.6µA.
Package: The LM4819M/NOPB is available in a small 8-pin MSOP package.
Essence: This amplifier is essential for providing high-quality audio output in space-constrained applications.
Packaging/Quantity: The LM4819M/NOPB is typically sold in reels of 2500 units.
Specifications
- Output Power: 350mW at 1% THD into 8Ω
- Shutdown Current: 0.6µA
- Supply Voltage Range: 2.7V to 5.5V
- Total Harmonic Distortion (THD): 0.2% (typical) at 150mW into 8Ω
- Quiescent Current: 1.6mA (typical)
Detailed Pin Configuration
The LM4819M/NOPB has the following pin configuration: 1. IN-: Audio Input Negative 2. IN+: Audio Input Positive 3. SHUTDOWN: Shutdown Control Input 4. GND: Ground 5. VDD: Positive Power Supply 6. OUT-: Speaker Output Negative 7. OUT+: Speaker Output Positive 8. BYPASS: Bypass Capacitor Connection
Functional Features
- Low Quiescent Current
- Low Shutdown Current
- Low Distortion
- Bridge-Tied Load (BTL) Configuration
Advantages and Disadvantages
Advantages: - Small package size - Low power consumption - High-quality audio output
Disadvantages: - Limited output power compared to larger amplifiers - Requires an external bypass capacitor for optimal performance
Working Principles
The LM4819M/NOPB operates by amplifying the input audio signal and delivering it to the connected speaker with minimal distortion and power consumption. It utilizes a bridge-tied load configuration to maximize efficiency and output power.
Detailed Application Field Plans
The LM4819M/NOPB is well-suited for various portable electronic devices, including: - Mobile phones - Portable media players - Bluetooth speakers - Handheld gaming devices
Detailed and Complete Alternative Models
Some alternative models to the LM4819M/NOPB include: - TPA2012D2 from Texas Instruments - MAX98306 from Maxim Integrated - NJU7088 from New Japan Radio
In conclusion, the LM4819M/NOPB is a compact and efficient audio amplifier suitable for portable electronic devices, offering high-quality audio output while minimizing power consumption.
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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de LM4819M/NOPB en soluciones técnicas
Question: What is the typical application of LM4819M/NOPB?
Answer: The LM4819M/NOPB is commonly used as a mono, bridge-tied load (BTL) audio amplifier in various technical solutions.Question: What is the maximum supply voltage for LM4819M/NOPB?
Answer: The maximum supply voltage for LM4819M/NOPB is 5.5V.Question: Can LM4819M/NOPB be used in portable devices?
Answer: Yes, LM4819M/NOPB is suitable for use in portable devices due to its low power consumption and small package size.Question: What is the output power capability of LM4819M/NOPB?
Answer: LM4819M/NOPB can deliver up to 350mW of continuous average power into an 8Ω BTL load with 10% THD+N.Question: Is LM4819M/NOPB suitable for driving headphones?
Answer: Yes, LM4819M/NOPB can drive headphones with an impedance range of 16Ω to 32Ω.Question: Does LM4819M/NOPB require external compensation?
Answer: No, LM4819M/NOPB does not require external compensation, which simplifies the design process.Question: What is the quiescent current consumption of LM4819M/NOPB?
Answer: The quiescent current consumption of LM4819M/NOPB is typically 0.6mA.Question: Can LM4819M/NOPB operate from a single supply?
Answer: Yes, LM4819M/NOPB can operate from a single supply, making it versatile for various applications.Question: What is the thermal shutdown feature of LM4819M/NOPB?
Answer: LM4819M/NOPB includes a thermal shutdown protection feature to prevent the device from overheating under abnormal operating conditions.Question: Is LM4819M/NOPB RoHS compliant?
Answer: Yes, LM4819M/NOPB is RoHS compliant, ensuring environmental friendliness and regulatory compliance.