LM4667ITL/NOPB

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High-performance, low-power audio amplifier
• Package: Thin Shrink Small Outline Package (TSSOP)
• Essence: Provides high-quality audio amplification in a compact form factor
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Power Supply Voltage: 2.5V to 5.5V
• Output Power: Up to 1W per channel
• Total Harmonic Distortion + Noise: 0.1% (typical)
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4667ITL/NOPB has a total of 20 pins arranged as follows:

Pin Number | Pin Name | Description -----------|----------|------------ 1 | VDD | Positive power supply 2 | SD | Shutdown control input 3 | INL | Left channel audio input 4 | GND | Ground 5 | BYP | Bypass capacitor connection 6 | OUTL | Left channel audio output 7 | NC | No connect 8 | NC | No connect 9 | NC | No connect 10 | NC | No connect 11 | NC | No connect 12 | NC | No connect 13 | NC | No connect 14 | NC | No connect 15 | NC | No connect 16 | NC | No connect 17 | INR | Right channel audio input 18 | GND | Ground 19 | BYP | Bypass capacitor connection 20 | OUTR | Right channel audio output

Functional Features

• High-quality audio amplification for portable devices
• Low-power consumption for extended battery life
• Shutdown mode for power-saving when not in use
• Bypass capacitor connection for improved audio performance
• Small form factor for space-constrained applications

Advantages and Disadvantages

Advantages

• Provides high-quality audio amplification with low distortion
• Operates at a wide range of power supply voltages
• Compact package allows for easy integration into various devices
• Low shutdown current ensures minimal power consumption during idle periods

Disadvantages

• Limited output power compared to larger audio amplifiers
• No built-in volume control or equalization features

Working Principles

The LM4667ITL/NOPB is a class AB audio amplifier that utilizes a bridge-tied load (BTL) configuration. It amplifies the audio input signals received from the left and right channels and delivers them to the corresponding audio outputs. The amplifier operates by modulating the input signals using a combination of transistors and resistors, resulting in amplified and enhanced audio output.

Detailed Application Field Plans

The LM4667ITL/NOPB is commonly used in various portable electronic devices such as smartphones, tablets, portable media players, and handheld gaming consoles. Its compact size, low power consumption, and high audio quality make it suitable for applications where space and battery life are critical factors.

Alternative Models

• LM4863
• TPA3116D2
• MAX9744
• TAS5720
• STA540

These alternative models offer similar functionality and can be considered as substitutes for the LM4667ITL/NOPB depending on specific requirements and design constraints.

In conclusion, the LM4667ITL/NOPB is a high-performance audio amplifier IC that provides excellent audio amplification in a compact form factor. Its low power consumption, wide power supply voltage range, and small package make it an ideal choice for portable electronic devices. However, its limited output power and lack of built-in volume control may be considered as drawbacks in certain applications.