STMicroelectronics

VIPER28HD  

AC DC Converters, Offline Switches

VIPER28HD Description

The VIPER28HD is an advanced offline switcher IC designed for flyback topology applications, part of the VIPer™ plus series by STMicroelectronics. This device is ideal for power management applications requiring high efficiency and reliability. With a power rating of 16 watts, the VIPER28HD operates within a wide input voltage range of 8.5V to 23.5V, ensuring robust performance across various power supply conditions. The device features a high breakdown voltage of 800V, providing excellent protection against voltage spikes and ensuring stable operation in demanding environments.

VIPER28HD Features

• High Efficiency and Performance: The VIPER28HD boasts a switching frequency of 115kHz, which enables the use of smaller, more compact transformers and inductors, reducing the overall size and cost of the power supply. The device also features an 80% duty cycle, enhancing its efficiency and making it suitable for applications where energy consumption is a critical factor.
• Comprehensive Protection Mechanisms: The VIPER28HD includes multiple fault features protection such as current limiting, over-temperature protection, over-voltage protection, and short-circuit protection. These features ensure the device's longevity and reliability, safeguarding both the IC and the connected circuitry from potential damage.
• Regulatory Compliance: The VIPER28HD is REACH unaffected and RoHS3 compliant, meeting stringent environmental and safety standards. This compliance ensures that the device is suitable for use in a wide range of applications, including those with strict regulatory requirements.
• Ease of Integration: The device is available in a surface-mount package, making it easy to integrate into modern, compact designs. The internal switch and isolated output isolation further simplify the design process, reducing the need for additional components and lowering overall system complexity.
• Reliability and Durability: With a moisture sensitivity level (MSL) of 3 (168 hours), the VIPER28HD is designed to withstand harsh environmental conditions, ensuring reliable performance in a variety of industrial and consumer applications.

VIPER28HD Applications

The VIPER28HD is well-suited for a range of applications where high efficiency, compact design, and robust performance are essential. Key applications include:

• Consumer Electronics: Ideal for power supplies in devices such as televisions, monitors, and other consumer electronics where space is limited and efficiency is crucial.
• Industrial Equipment: Suitable for industrial control systems, where the device's high breakdown voltage and comprehensive protection features ensure reliable operation in demanding environments.
• Telecommunications: The VIPER28HD can be used in telecom equipment, providing stable power supply solutions that meet the stringent requirements of the industry.
• Medical Devices: Given its regulatory compliance and high reliability, the VIPER28HD is also suitable for medical equipment power supplies, where safety and performance are paramount.

Conclusion of VIPER28HD

The VIPER28HD by STMicroelectronics stands out as a versatile and reliable offline switcher IC, offering a comprehensive set of features tailored for high-efficiency power management applications. Its wide input voltage range, high breakdown voltage, and multiple protection mechanisms make it a robust solution for a variety of industrial and consumer applications. The device's compliance with environmental and safety standards further enhances its appeal, making it an ideal choice for engineers and designers seeking a reliable, efficient, and compact power management solution.

VIPER28HD Documents

Download datasheets and manufacturer documentation for VIPER28HD

PCN :

VIPER28xx : metal mask modification for yield improvement (PDF)       VIPERxx products in SO 16 Narrow package. Additional Testing and Finishing location in UTAC Thai Limited (PDF)       Product Change Notification (PDF)