STMicroelectronics

VIPER35LD  

AC DC Converters, Offline Switches

VIPER35LD Description

The VIPER35LD is an active offline switcher IC designed for flyback topology applications, manufactured by STMicroelectronics. This device is highly efficient and reliable, making it suitable for a range of power management applications. With a switching frequency of 136kHz, the VIPER35LD ensures optimal performance in various electronic systems. It features an internal switch, which simplifies the design process and reduces the need for external components. The device operates within a supply voltage range of 8.5V to 23.5V and offers a startup voltage of 14V, ensuring stable operation under varying conditions. The VIPER35LD is REACH unaffected and RoHS3 compliant, adhering to stringent environmental standards. It also boasts a moisture sensitivity level of 3 (168 hours), making it suitable for a wide range of manufacturing processes. The device is housed in a surface-mount tube package, which enhances its durability and ease of integration into modern electronic designs.

VIPER35LD Features

• High Breakdown Voltage: The VIPER35LD features a breakdown voltage of 800V, providing robust protection against voltage spikes and ensuring reliable operation in high-voltage environments.
• Advanced Fault Protection: This IC includes comprehensive fault protection mechanisms such as current limiting, over-temperature protection, over-voltage protection, and short-circuit protection. These features safeguard the device and connected components from potential damage, enhancing overall system reliability.
• Efficient Power Delivery: With a power output capability of 22W, the VIPER35LD is well-suited for applications requiring efficient power delivery. Its flyback topology ensures high efficiency and minimal energy loss.
• Isolated Output: The VIPER35LD offers isolated output, which is crucial for applications where galvanic isolation is necessary to protect sensitive circuits from high-voltage transients and ground loops.
• Compliance and Environmental Standards: The device is REACH unaffected and RoHS3 compliant, ensuring it meets the latest environmental and regulatory requirements. This makes it an ideal choice for manufacturers aiming to produce eco-friendly and compliant products.
• Surface-Mount Technology: The surface-mount package of the VIPER35LD facilitates easy integration into compact and high-density PCB designs, making it suitable for modern electronic systems.

VIPER35LD Applications

The VIPER35LD is ideal for a variety of applications where efficient power management and high reliability are critical. Some specific use cases include:

• Power Supplies: The device is well-suited for offline power supplies in consumer electronics, industrial equipment, and telecommunications infrastructure.
• Adapters and Chargers: Its high efficiency and robust protection features make it an excellent choice for AC-DC adapters and chargers, ensuring reliable power delivery to various devices.
• LED Lighting: The VIPER35LD can be used in LED lighting systems, providing efficient power conversion and ensuring consistent performance.
• Medical Equipment: The isolated output and comprehensive protection features make it suitable for medical devices where safety and reliability are paramount.
• Automotive Electronics: The high breakdown voltage and fault protection mechanisms ensure the device can withstand the demanding conditions found in automotive applications.

Conclusion of VIPER35LD

The VIPER35LD from STMicroelectronics stands out as a versatile and reliable offline switcher IC for flyback topology applications. Its high breakdown voltage, advanced fault protection, and efficient power delivery capabilities make it an excellent choice for a wide range of power management applications. The device's compliance with environmental standards and its surface-mount package further enhance its appeal for modern electronic designs. Whether used in power supplies, adapters, LED lighting, medical equipment, or automotive electronics, the VIPER35LD offers a robust and efficient solution, ensuring reliable performance and protection in various operating conditions.

VIPER35LD Documents

Download datasheets and manufacturer documentation for VIPER35LD

PCN Assembly/Origin :

Mult Dev 11/Nov/2022      

Datasheets :

VIPER35 Datasheet      

Reference Design Library :

STEVAL-ISA183V1: 12V/15V/5V @ 16W, 230 VAC      

HTML Datasheet :

VIPER35 Datasheet