NS4731 datasheet, PDF - EEWORLD Datasheet

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NS4731: Description2W mono class G audio amplifier; CategoryAnalog mixed-signal IC; File Size207KB，2 Pages; ManufacturerShenzhen Nsiway Technology Co., Ltd.; Websitehttp://www.nsiway.com.cn/; Shenzhen Naxinwei Technology Co., Ltd. is a national high-tech enterprise specializing in the design, development, production, sales and service of integrated circuits and related electronic products. The company is located in the integrated circuit design industrialization base in the central area of Shenzhen High-tech Industrial Park, and has R&D centers in Shanghai and Taiwan, China. The company provides advanced semiconductor products and related services to the industry to achieve safe, environmentally friendly, efficient and low-cost product solutions. The product line includes power management chips, fast charging chips, audio amplifiers, charging control and other chips, focusing on market areas covering mobile communications, smart homes, notebook computers, smart wearables, new energy vehicles, speaker electronics and many other fields. Relying on the Shenzhen Integrated Circuit Design Industrialization Base, the company has established a complete integrated circuit design process and quality reliability assurance system, supports advanced IC design processes, and has independent intellectual property rights for its products. The company has always adhered to the principle of continuous innovation in technology and R&D. By adopting the latest IC design technology and cooperating with the most competitive wafer foundry and packaging factory, it realizes continuous innovation, fast and efficient product design, continuously launches more optimized overall solutions, continuously expands the project development field, and realizes product diversification and serialization to meet the ever-changing needs of customers.

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NS4731 Overview

2W mono class G audio amplifier

Features

Product name: 2W mono class G audio amplifier

Product model: NS4731

Product Description:

NS4731 is a mono Class G audio power amplifier with integrated boost charge pump power supply. The output swing of the amplifier is much larger than that of traditional amplifiers before being clipped. At 4.2V supply voltage, the output power of driving 8Ω load can reach 2W.

NS4731 is a mono Class G audio power amplifier with NCN function. NS4731 uses advanced technology to improve the efficiency of the amplifier. In addition, the chip integrates circuits to suppress clicks, crackles and other noises when switching on and off. It has built-in overcurrent protection, overheat protection and undervoltage protection. It is very suitable for applications with low power supply voltage and high output power requirements.

NS4731 is available in TQFN4×4-28 package and the rated operating temperature range is -40℃ to 85℃.

parameter:

Integrated boost charge pump power supply

Noise Crack Prevention (NCN) function

Operating voltage range: 2.7V～4.5V

Output power: 2.0W (4.2V power supply, 8Ω load)

High PSRR: -70dB (217Hz)

Low quiescent current (10mA)

"Power-on, power-off" noise suppression

Overcurrent protection, overheat protection, undervoltage protection

TQFN4×4-28 package

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