VIPER100 [STMicroelectronics]

VIPer100/100A is a primary-side PWM controller with integrated high-voltage power MOSFET (620V or 700V, 3A). It features adjustable switching frequency up to 200 kHz, current mode control, soft start and shutdown, automatic burst mode for stand-by, internally trimmed zener reference, undervoltage lock-out with hysteresis, integrated start-up supply, over-temperature protection, low stand-by current, and adjustable current limit. Typical applications are offline power supplies up to 100W, using fewer components than discrete solutions.