STMicroelectronics

VIPER27LD  

AC DC Converters, Offline Switches

VIPER27LD Description

The VIPER27LD is an advanced offline switcher IC designed for flyback topology applications, part of STMicroelectronics' VIPer™ plus series. This high-performance power management IC is ideal for a wide range of applications requiring efficient power conversion. With a power output of 20 watts, the VIPER27LD offers a robust solution for various power supply needs. It features an internal switch with a switching frequency of 60kHz, ensuring efficient power delivery and minimal electromagnetic interference (EMI).

The VIPER27LD operates within a wide input voltage range of 8.5V to 23.5V, making it suitable for diverse power supply applications. It also includes comprehensive fault protection mechanisms such as current limiting, over-temperature, and over-voltage protection, ensuring reliable and safe operation. The device is housed in a surface-mount 16SO package, making it ideal for compact and space-constrained designs.

VIPER27LD Features

• High Power Output: Capable of delivering up to 20 watts of power, the VIPER27LD is suitable for demanding applications requiring efficient power conversion.
• Wide Input Voltage Range: Operates within an input voltage range of 8.5V to 23.5V, providing flexibility for various power supply designs.
• Internal Switch: Features an internal switch with a switching frequency of 60kHz, ensuring efficient power delivery and minimal EMI.
• Comprehensive Fault Protection: Includes current limiting, over-temperature, and over-voltage protection to ensure reliable and safe operation.
• Output Isolation: Provides isolated output, enhancing safety and reliability in power supply applications.
• High Breakdown Voltage: With a breakdown voltage of 800V, the VIPER27LD offers robust protection against voltage spikes and surges.
• High Duty Cycle: Supports a duty cycle of up to 80%, enabling efficient power conversion and reduced energy loss.
• Compliance and Reliability: The VIPER27LD is REACH unaffected and ROHS3 compliant, ensuring compliance with environmental and safety standards. It also has a moisture sensitivity level (MSL) of 3 (168 hours), making it suitable for various manufacturing environments.

VIPER27LD Applications

The VIPER27LD is ideal for a variety of applications where efficient power conversion and reliability are paramount. Key applications include:

• Consumer Electronics: Suitable for power supplies in devices such as televisions, monitors, and other consumer electronics requiring efficient power management.
• Industrial Equipment: Ideal for power supplies in industrial applications where high power output and reliability are essential.
• Telecommunications: Can be used in power supplies for telecom equipment, ensuring efficient and reliable power delivery.
• Medical Devices: Suitable for medical equipment power supplies, where isolated output and comprehensive fault protection are critical for safety and reliability.

Conclusion of VIPER27LD

The VIPER27LD from STMicroelectronics is a highly efficient and reliable offline switcher IC designed for flyback topology applications. With its wide input voltage range, high power output, and comprehensive fault protection, it offers a robust solution for various power supply needs. The device's internal switch and high switching frequency ensure efficient power delivery and minimal EMI, making it ideal for compact and space-constrained designs. The VIPER27LD's compliance with environmental and safety standards further enhances its suitability for a wide range of applications. Whether used in consumer electronics, industrial equipment, telecommunications, or medical devices, the VIPER27LD provides a reliable and efficient power management solution.

VIPER27LD Documents

Download datasheets and manufacturer documentation for VIPER27LD

PCN :

VIPERxx products in SO 16 Narrow package. Additional Testing and Finishing location in UTAC Thai Limited (PDF)       VIPER27 product family : metal mask mofification for yield improvement (PDF)       Product Change Notification (PDF)