VIPER37LE
Overview
The VIPER37LE is a high-voltage offline converter designed for flyback topologies, integrating an 800V avalanche-rugged power MOSFET with a PWM controller. It supports up to 20W of output power and features frequency jittering to reduce EMI, making it ideal for compact AC-DC power supplies.
Why Choose This Part
The device integrates comprehensive safety features including current limiting, overvoltage protection, and hysteretic thermal shutdown into a single SDIP10 package. Its high 800V breakdown voltage provides significant margin against line surges, while the 30mW standby power consumption helps designers meet strict energy efficiency standards.
Applications
Key Specifications
Getting Started
To begin development, refer to STMicroelectronics' application notes for flyback transformer design and PCB layout guidelines to manage the high-voltage traces. Evaluation boards like the STEVAL-ISA series often feature VIPerPlus converters to demonstrate efficiency and thermal performance.
VIPER37 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Sw. Freq | Stock |
|---|---|---|
| VIPER37LE (this part) | 60k | 4,642 |
| VIPER37HE | 115k | — |
