STMicroelectronics VIPER50ASP-E: High-Voltage Converter

The VIPER50ASP-E is a cutting-edge power conversion device from STMicroelectronics designed to meet the needs of high-voltage applications. This integrated switcher combines a dedicated current mode PWM controller with a high voltage Power MOSFET on the same silicon chip. The inclusion of several protection features makes this product a robust and versatile solution for a wide range of power supply designs.

With its wide input voltage range, the VIPER50ASP-E is capable of handling up to 500V, making it an ideal choice for offline power supplies. This high-voltage capability is particularly useful for industrial applications, where equipment often operates at higher voltages. The chip is designed to deliver a power output of up to 50W, which is sufficient for a broad spectrum of medium-power applications.

The VIPER50ASP-E also features an adjustable oscillation frequency, which can be set with external components. This flexibility allows designers to optimize the device for specific applications, balancing efficiency and component size. Moreover, the frequency jittering feature helps to reduce electromagnetic interference (EMI), improving the performance of the power supply in noise-sensitive applications.

For safety and reliability, the VIPER50ASP-E incorporates several protection mechanisms. Overcurrent protection ensures that the device operates within safe current limits, while thermal shutdown with hysteresis protects the IC from overheating. This is complemented by overvoltage protection, which prevents damage to the device and the powered application in the event of voltage spikes. Additionally, the device offers a soft-start function to reduce stress on the power supply during startup.

The VIPER50ASP-E is available in a Pentawatt HV package, which is designed for optimal heat dissipation and space-saving on the PCB. The combination of high integration, protection features, and high-voltage capability makes the VIPER50ASP-E an excellent choice for developing efficient and reliable power supplies in applications such as consumer electronics, home appliances, and industrial systems.

With the VIPER50ASP-E, STMicroelectronics continues to demonstrate its commitment to providing innovative power solutions that meet the evolving needs of the electronics industry.