VIPER12ADIP-E
Overview
The VIPER12ADIP-E is an offline swithmode power supply (SMPS) primary switcher that integrates a dedicated current mode PWM controller with a 730V power MOSFET. Designed for low-power applications up to 13W, it operates at a fixed 60kHz switching frequency and features a high-voltage start-up current source to simplify circuit design by eliminating the need for an external start-up resistor.
Why Choose This Part
It offers significant board space savings by integrating the high-voltage MOSFET and controller into a single 8-DIP package. The device includes robust protection features such as automatic restart for overvoltage and overtemperature conditions, along with an wide VDD supply range of 9V to 38V that allows for flexibility in auxiliary winding design.
Applications
Key Specifications
Getting Started
To design with the VIPER12ADIP-E, follow the STMicroelectronics application notes for flyback or buck topologies to calculate the transformer or inductor requirements. Ensure adequate heat sinking through the GND pins (pins 1 and 2) to the PCB copper for optimal thermal management up to the 150 degree Celsius limit.




