LM4926TLX/NOPB

Product Overview

LM4926TLX/NOPB belongs to the category of audio amplifiers. It is commonly used in portable electronic devices such as smartphones, tablets, and portable media players. The LM4926TLX/NOPB is known for its compact package, high efficiency, and low power consumption. It is typically available in a small outline package (SOP) and comes in quantities suitable for mass production.

Specifications

• Power Supply Range: 2.7V to 5.5V
• Output Power: 1.35W per channel at 3Ω and 5V
• Total Harmonic Distortion + Noise (THD+N): 0.15% at 1kHz, 1.2W, 4Ω
• Shutdown Current: 0.01μA (typical)
• Package: 14-pin WSON or LLP

Detailed Pin Configuration

The LM4926TLX/NOPB features a 14-pin configuration with pins designated for input, output, power supply, and control signals. The pinout includes connections for left and right channel outputs, shutdown control, and gain selection.

Functional Features

• Integrated charge pump for driving capless headphones
• Automatic level control to prevent clipping
• Thermal shutdown and output short-circuit protection
• Low quiescent current in shutdown mode

Advantages and Disadvantages

Advantages

• Small package size suitable for portable devices
• Efficient power consumption
• Integrated protection features for reliability

Disadvantages

• Limited output power compared to larger amplifiers
• Requires external components for full functionality

Working Principles

The LM4926TLX/NOPB operates by amplifying the audio signal from the input source and delivering it to the connected output device, such as headphones or speakers. It utilizes a charge pump to drive capless headphones and incorporates automatic level control to maintain optimal audio quality.

Detailed Application Field Plans

The LM4926TLX/NOPB is well-suited for use in portable electronic devices where space and power efficiency are crucial. Its application extends to smartphones, tablets, portable media players, and other battery-powered consumer electronics.

Detailed and Complete Alternative Models

• LM48901: A similar audio amplifier with higher output power
• LM4863: Dual-channel audio amplifier with different package options
• MAX97220: Low-power audio amplifier with integrated volume control

In conclusion, the LM4926TLX/NOPB offers a compact and efficient solution for audio amplification in portable electronic devices. Its integration of protection features and low power consumption make it an ideal choice for various consumer electronics applications.

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