VIPER50ASP-E

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The VIPER50ASP-E is an integrated AC-DC converter from STMicroelectronics that provides a high level of efficiency in a compact package. It is part of their VIPer family of high-performance AC-DC converters. This family of converters combines power topologies and components to optimize efficiency, performance and space, making them suitable for a wide variety of applications. The VIPER50ASP-E is a versatile device that can be used as an offline switch, an AC-DC converter, a buck-boost converter and a phase shift converter.

Application Field

The VIPER50ASP-E is suitable for a wide range of applications such as consumer electronics, audio and video equipment, office automation, white goods and home appliances. Due to its wide input range, the VIPER50ASP-E is also suitable for distributed power architectures and powerful applications in the industrial and medical fields.

Working Principle

The VIPER50ASP-E is a high performance AC-DC converter that is based on the flyback topology. It integrates the half bridge (HB) topology and features a built-in PFC pre-regulator which maximizes efficiency by optimizing the power factor. The VIPER50ASP-E operates in discontinuous conduction mode (DCM) at light load conditions and switches over to continuous mode (CM) at heavy load conditions. The VIPER50ASP-E operates at a nominal voltage of 8V and can deliver up to 50W of power.

The device includes integrated components such as a high-voltage switching regulator, output protection circuitry, and a auto-start circuit. The integrated components help to reduce the total bill-of-materials (BOM) cost and simplify the design. The integrated protection circuitry helps to protect the device from over-voltage, short circuit and reverse polarity. The VIPER50ASP-E also features a low shutdown current for greater environmental sustainability.

Due to its excellent efficiency and robust protection features, the VIPER50ASP-E is well-suited for a variety of offline applications in consumer, industrial and medical fields.

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