LM4863LQ/NOPB

Product Overview

Category

LM4863LQ/NOPB belongs to the category of audio power amplifiers.

Use

It is primarily used for amplifying audio signals in various electronic devices such as portable speakers, headphones, and multimedia systems.

Characteristics

• High-quality audio amplification
• Low power consumption
• Compact size
• Wide voltage range operation
• Thermal shutdown protection

Package

LM4863LQ/NOPB is available in a small outline package (SOP) with 16 pins.

Essence

The essence of LM4863LQ/NOPB lies in its ability to provide efficient and high-quality audio amplification while consuming minimal power.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage: 2.7V to 5.5V
• Output Power: 1.1W per channel (8Ω load, 5V supply)
• Total Harmonic Distortion (THD): 0.1% (1W, 1kHz)
• Signal-to-Noise Ratio (SNR): 95dB (A-weighted)
• Shutdown Current: 0.6μA (typical)

Detailed Pin Configuration

1. VDD: Positive power supply
2. SD: Shutdown control input
3. IN1-: Negative input terminal for Channel 1
4. IN1+: Positive input terminal for Channel 1
5. GND: Ground
6. OUT1: Output terminal for Channel 1
7. PVDD: Positive power supply for output stage
8. VDD: Positive power supply
9. IN2-: Negative input terminal for Channel 2
10. IN2+: Positive input terminal for Channel 2
11. GND: Ground
12. OUT2: Output terminal for Channel 2
13. BYP: Bypass capacitor connection
14. BP: Bypass pin
15. VDD: Positive power supply
16. VSS: Negative power supply

Functional Features

• Dual-channel audio amplification
• Built-in thermal shutdown protection
• Short-circuit and over-temperature protection
• Low quiescent current
• Pop and click suppression during power-on/off transitions

Advantages and Disadvantages

Advantages

• High-quality audio amplification
• Low power consumption
• Compact size
• Protection features ensure device longevity
• Minimal pop and click noise during power transitions

Disadvantages

• Limited output power compared to higher wattage amplifiers
• Not suitable for high-power audio applications

Working Principles

LM4863LQ/NOPB operates on the principle of amplifying low-level audio signals using a class AB amplifier configuration. It utilizes a bridge-tied load (BTL) architecture to provide increased output power while maintaining low distortion levels. The internal circuitry ensures efficient power utilization and protects the device from thermal and short-circuit damage.

Detailed Application Field Plans

LM4863LQ/NOPB finds applications in various electronic devices, including: 1. Portable speakers 2. Headphones 3. Multimedia systems 4. Personal audio devices 5. Gaming consoles

Detailed and Complete Alternative Models

1. LM4861: Single-channel audio power amplifier
2. LM4862: Dual-channel audio power amplifier with higher output power
3. LM4864: Dual-channel audio power amplifier with integrated volume control

These alternative models offer different features and specifications to cater to specific application requirements.

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