The VIPER38HD from STMicroelectronics is a cutting-edge, high-voltage converter integrated circuit (IC) designed for a wide range of applications, particularly those requiring a reliable and efficient power supply. This IC is part of the VIPerPlus family and is renowned for its robustness and flexibility, making it an ideal choice for both industrial and consumer electronics.

Key Features

• High-Voltage Capability: The VIPER38HD operates directly from a rectified mains supply with a wide voltage range, eliminating the need for an auxiliary switched-mode power supply.
• Energy Efficiency: It features an 800 V avalanche-rugged power section, PWM operation at 115 kHz with frequency jittering for lower EMI, and multiple protections that enhance overall system reliability.
• Advanced Protections: The device includes protections such as overload protection, overvoltage protection, thermal shutdown, and hysteresis. These ensure safe operation under abnormal operating conditions.
• Low Standby Power: The VIPER38HD is designed to meet the most stringent energy-saving standards, with very low consumption and low-power standby mode to minimize power usage when idle.

Applications

The versatility of the VIPER38HD allows it to be used in a variety of applications. It is particularly well-suited for:

• Switched-mode power supplies (SMPS)
• Power adapters
• LED lighting drivers
• Standby power supplies for TVs or monitors
• Auxiliary power supplies for domestic appliances

Technical Specifications

The VIPER38HD has an extended input voltage range and can operate over a wide temperature range. It is available in different package options to suit various design requirements.

Conclusion

The VIPER38HD is a high-performance solution that provides designers with a compact, efficient, and cost-effective power conversion IC. Its robust design and comprehensive feature set make it a go-to choice for engineers looking to optimize their power supply designs for both performance and reliability.