VIPER28HN

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Power Management Integrated Circuits (PMICs) are semiconductor integrated circuits (ICs) designed to provide power to an electrical system. PMICs enable the reliable and efficient distribution, conversion, monitoring, and management of electrical power. PMICs often incorporate essential features of a power system such as voltage regulators, protection circuits, and adjustable output current. PMICs are used in many industries to provide energy efficiency, thermal management, and operational accuracy.

The VIPER28HN is a PMIC designed to provide efficient power conversion and management for various applications. It is an offline flyback switcher IC that has a wide input voltage range and can provide a regulated output voltage of up to 250 VDC. It is designed to operate in a constant frequency mode, which allows it to achieve higher efficiency and reduce power consumption. In addition, the VIPER28HN is equipped with a temperature protection circuit and a fault status signal, making it a highly reliable IC for applications that require precise power management.

The VIPER28HN is suitable for a variety of applications including regulated power supplies, motor controllers, solar inverters, LED drivers, and more. It can be used for both AC-to-DC and DC-to-DC conversion, making it a versatile and cost-effective solution for many power management applications. With its wide input range, high efficiency, and reliable protection features, the VIPER28HN is an ideal choice for power management and conversion applications.

The working principle of the VIPER28HN is based on an offline flyback topology. In this topology, the IC is connected to a mains voltage input, either AC or DC, and an output voltage is provided. When the input voltage is applied, the IC detects it and starts the switching cycle. The IC then regulates the power being delivered by the switch at a desired level by switching the connected transistors on and off. The switching frequency of the VIPER28HN is controlled by an internal oscillator, which also adjusts the voltage and current levels of the output signal.

The VIPER28HN is equipped with several features to ensure reliable operation and power management. It has a temperature protection circuit that is activated when the chip temperature reaches a predefined level. This ensures that the IC does not overheat and is protected from potential damage. The VIPER28HN also features a fault status signal that indicates when a fault has occurred. Furthermore, it is also equipped with an adjustable output current limiting feature that prevents the output from being overloaded.

The VIPER28HN is a versatile PMIC that can be used for a variety of applications. Its features make it ideal for applications such as AC-DC and DC-DC converters, offline switchers, motor controllers, solar inverters, and LED drivers. Its high efficiency and low power consumption, coupled with its temperature protection circuit and adjustable output current, ensures reliable operation and performance. Its wide input voltage range adds to its utility and makes it an ideal choice for power management in a variety of applications.

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