LM4852LQ/NOPB

Product Overview

The LM4852LQ/NOPB belongs to the category of audio power amplifiers and is commonly used in portable electronic devices such as smartphones, tablets, and portable media players. This integrated circuit (IC) is known for its compact package, high efficiency, and low power consumption. The LM4852LQ/NOPB is typically available in a small outline package (SOP) and is designed to deliver high-quality audio output while minimizing power usage.

Basic Information

• Category: Audio Power Amplifier
• Use: Portable Electronic Devices
• Characteristics: Compact, High Efficiency, Low Power Consumption
• Package: Small Outline Package (SOP)
• Essence: High-Quality Audio Output
• Packaging/Quantity: Typically supplied in reels or tubes containing multiple units

Specifications

• Output Power: Up to 1.1W per channel into 8Ω at 5V
• Total Harmonic Distortion + Noise (THD+N): 0.1% (Typical) at 1kHz, 0.6W, 8Ω
• Quiescent Power Supply Current: 4mA (Typical)
• Shutdown Current: 0.6μA (Typical)
• Operating Voltage Range: 2.7V to 5.5V
• Package Type: 14-Pin Thin Shrink Small Outline Package (TSSOP)

Detailed Pin Configuration

The LM4852LQ/NOPB features a 14-pin TSSOP package with the following pin configuration: 1. Shutdown 2. Input Bypass 3. Input Signal 4. Gain Select 5. Negative Speaker Output 6. Positive Speaker Output 7. VDD 8. GND 9. GND 10. Bootstrap 11. Bootstrap 12. Gain Select 13. Input Bypass 14. Shutdown

Functional Features

• Integrated Boost Converter: Allows operation from a single supply voltage
• Low Quiescent Current: Enables efficient power management
• Thermal Shutdown Protection: Safeguards the device from overheating
• Short-Circuit and Thermal Protection: Ensures reliable operation under various conditions

Advantages and Disadvantages

Advantages

• Compact size suitable for portable devices
• High efficiency and low power consumption
• Integrated protection features for enhanced reliability

Disadvantages

• Limited output power compared to larger amplifiers
• May require external components for specific applications

Working Principles

The LM4852LQ/NOPB utilizes a boost converter to efficiently generate the required voltage for audio amplification. It amplifies the input audio signal and drives the connected speaker to produce high-quality sound output. The integrated protection mechanisms ensure safe and reliable operation even under challenging conditions.

Detailed Application Field Plans

The LM4852LQ/NOPB is well-suited for a wide range of portable electronic devices, including: - Smartphones - Tablets - Portable Media Players - Bluetooth Speakers - Wearable Devices

Detailed and Complete Alternative Models

• LM4863: Higher output power for larger audio applications
• LM4881: Lower quiescent current for ultra-low power designs
• LM4892: Enhanced features for advanced audio systems

In conclusion, the LM4852LQ/NOPB offers a balance of compact size, efficiency, and reliability, making it an ideal choice for audio amplification in portable electronic devices.

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