STMicroelectronics VIPER26 Fixed Frequency Off-Line Converters feature an 800V avalanche ruggedness power section, a PWM controller, user-defined overcurrent limit, and protection against feedback network disconnection. STMicroelectronics VIPER26 Fixed Frequency Off-Line Converters also offer hysteric thermal protection, soft start up, and safe auto restart after any fault condition. Advance frequency jittering reduces EMI filter cost. Burst mode operation and low power consumption allow these STMicroelectronics VIPer plus devices to meet the standard set by energy saving regulations. VIPER26 Fixed Frequency Off-Line Converters are designed for use in power metering, LED driver, and auxiliary power supply applications.