STMicroelectronics VIPER16LDTR - High-Voltage Converter

The VIPER16LDTR from STMicroelectronics is a robust and highly efficient power management integrated circuit designed for switch-mode power supplies. It is part of the VIPerPlus family, which is renowned for its ability to handle high voltages and provide a reliable power conversion solution for a wide range of applications.

This device integrates an 800V avalanche-rugged power MOSFET with PWM (Pulse Width Modulation) control, making it an excellent choice for off-line converters with a direct connection to the rectified mains. The high voltage capability ensures that the device can withstand surges and spikes common in AC mains without the need for additional protection circuits.

The VIPER16LDTR operates at a fixed 60 kHz switching frequency, which allows for a good balance between efficiency and manageable EMI (Electromagnetic Interference). The internal frequency jittering further helps in reducing EMI emissions, simplifying the design of cost-effective EMI filters.

With its built-in features such as Over Voltage Protection (OVP), Over Current Protection (OCP), Hiccup Mode, and Brown-Out Protection, the VIPER16LDTR ensures that the power supply is safeguarded against a variety of fault conditions. These protections contribute to the reliability and longevity of the final product.

The device also boasts an extremely low standby power consumption thanks to the proprietary "eco-mode" that dynamically adjusts the pulse skipping to reduce power losses at light loads. This makes the VIPER16LDTR an ideal choice for energy-saving applications and those targeting compliance with energy efficiency regulations.

Available in a compact SO-16N package, the VIPER16LDTR is suitable for applications such as adapters, chargers, standby and auxiliary supplies, and it is particularly well-suited for power supplies in appliances, consumer electronics, and industrial control systems.

Overall, the VIPER16LDTR is a versatile and reliable solution for designers looking to create efficient, compact, and cost-effective power supplies with built-in protection features and compliance with energy efficiency standards.