STMicroelectronics

VIPER319HDTR  

AC DC Converters, Offline Switches

VIPER319HDTR Description

The VIPER319HDTR from STMicroelectronics is a high-performance offline switch IC designed for AC/DC conversion applications. Part of the VIPER™ series, this surface-mount device integrates an 800V breakdown voltage capability and operates with a switching frequency of 132kHz. It features a wide input voltage range (4.5V to 30V) and a low startup voltage of 8V, ensuring reliable operation in diverse power supply designs. With a power rating of 1W, it is optimized for compact, energy-efficient solutions. The device is REACH unaffected and ROHS3 compliant, meeting stringent environmental and safety standards. Packaged in Tape & Reel (TR), it is suitable for automated assembly processes.

VIPER319HDTR Features

• Integrated High-Voltage Switch: 800V breakdown voltage for robust offline operation.
• Wide Input Range: 4.5V–30V supply voltage with 8V startup, enhancing flexibility.
• Advanced Protection: Comprehensive fault protection including over-load, over-temperature, over-voltage, and short-circuit safeguards.
• Control Features: Soft-start functionality reduces inrush current, improving system reliability.
• Compact & Efficient: 132kHz switching frequency enables smaller external components and higher power density.
• Environmental Compliance: ROHS3 and REACH compliant, with MSL3 (168 hours) moisture sensitivity.

VIPER319HDTR Applications

Ideal for low-power AC/DC converters, the VIPER319HDTR excels in:

• Auxiliary Power Supplies: For industrial and consumer electronics.
• Smart Home Devices: Powering IoT sensors, gateways, and control modules.
• LED Lighting Drivers: Compact and efficient designs for low-wattage LED systems.
• Adapter Circuits: Small-form-factor chargers and adapters requiring high reliability.

Conclusion of VIPER319HDTR

The VIPER319HDTR combines high integration, robust protection, and efficiency, making it a standout choice for offline power conversion. Its compact design, wide voltage range, and compliance with environmental standards position it as a versatile solution for modern low-power applications. Engineers will appreciate its reliability and ease of implementation in space-constrained designs.

VIPER319HDTR Documents

Download datasheets and manufacturer documentation for VIPER319HDTR

PCN Assembly/Origin :

Mult Dev 11/Nov/2022      

Datasheets :

VIPER31      

PCN Design/Specification :

VIPER31x Datasheet 10/Aug/2023