LM4667MMX/NOPB

Product Overview

• Category: Audio Amplifier
• Use: Amplifying audio signals in electronic devices
• Characteristics: High-quality sound reproduction, compact size, low power consumption
• Package: Miniature surface-mount package (MMX)
• Essence: Integrated audio amplifier circuit
• Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

• Power Supply Voltage: 2.5V to 5.5V
• Output Power: 1.2W (typical) into 8Ω at 5V supply
• Total Harmonic Distortion + Noise: 0.1% (typical) at 1kHz, 1W output power
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM4667MMX/NOPB package consists of 10 pins:

1. VDD: Power supply voltage input
2. GND: Ground reference
3. SD: Shutdown control input
4. INL: Left channel audio input
5. INR: Right channel audio input
6. BYP: Bypass capacitor connection
7. OUTL: Left channel audio output
8. OUTR: Right channel audio output
9. BP: Bootstrap capacitor connection
10. NC: No connection

Functional Features

• Single-ended stereo audio amplifier
• Class AB amplifier architecture for high efficiency
• Low quiescent current consumption
• Thermal shutdown protection
• Short-circuit and over-temperature protection

Advantages and Disadvantages

Advantages

• Compact size allows for integration into small electronic devices
• High-quality sound reproduction with low distortion
• Low power consumption extends battery life in portable devices
• Built-in protection features ensure safe operation

Disadvantages

• Limited output power suitable for small speakers or headphones
• Requires external components for proper operation
• Not suitable for high-power audio applications

Working Principles

The LM4667MMX/NOPB is a single-ended stereo audio amplifier that utilizes a Class AB architecture. It amplifies the audio signals received from the left and right channels, providing an amplified output to drive speakers or headphones. The amplifier operates on a low power supply voltage and consumes minimal current when in standby mode. It incorporates thermal shutdown, short-circuit, and over-temperature protection mechanisms to safeguard the device and connected components.

Detailed Application Field Plans

The LM4667MMX/NOPB is commonly used in various electronic devices where audio amplification is required. Some application fields include:

1. Portable audio devices: MP3 players, smartphones, tablets
2. Personal computers: Desktops, laptops, all-in-one PCs
3. Gaming consoles: Handheld gaming devices, gaming accessories
4. Home entertainment systems: Soundbars, multimedia speakers
5. Automotive audio systems: Car stereos, amplifiers

Detailed and Complete Alternative Models

1. LM4863MTE/NOPB: Dual 2.2W Audio Amplifier with Shutdown Mode
2. TPA3110D2PWPR: 15-W Stereo Class-D Audio Power Amplifier
3. MAX98357AETE+T: Mono Class D Audio Subsystem with Dynamic Speaker Management

These alternative models offer similar functionality and can be considered as alternatives to the LM4667MMX/NOPB based on specific requirements and design constraints.

Word count: 439 words