VIPER06XSTR STMicroelectronics

VIPER06 Energy saving high voltage converter for direct feedback Datasheet - production data Applications Replacement of capacitive power supplies Home appliances Power metering LED drivers Description The VIPER06 is an offline converter with an 800 V avalanche rugged power section, a PWM Figure 1: Typical application controller, a user-defined overcurrent limit, open-loop failure protection, hysteretic thermal protection, soft startup and safe auto-restart after any fault condition. The device is able to power itself directly from the rectified mains, eliminating the need for an auxiliary bias winding. Advanced frequency jittering reduces EMI filter cost. Burst mode operation and the devices very low power consumption both help to meet the standards set by energy-saving regulations. Features 800 V avalanche rugged power section PWM operation with frequency jittering for low EMI Operating frequency: 30 kHz for VIPER06Xx 60 kHz for VIPER06Lx 115 kHz for VIPER06Hx No need for an auxiliary winding in low-power applications Standby power < 30 mW at 265 VAC Limiting current with adjustable set point On-board soft-start Safe auto-restart after a fault condition Hysteretic thermal shutdown February 2017 DocID022794 Rev 2 1/28 www.st.com This is information on a product in full production. Contents VIPER06 Contents 1 Block diagram .................................................................................. 3 2 Typical power .................................................................................. 3 3 Pin settings ...................................................................................... 4 4 Electrical data .................................................................................. 5 4.1 Maximum ratings ............................................................................... 5 4.2 Thermal data ..................................................................................... 5 4.3 Electrical characteristics .................................................................... 7 5 Typical electrical characteristics.................................................... 9 6 Typical circuit ................................................................................ 12 7 Power section ................................................................................ 14 8 High voltage current generator .................................................... 14 9 Oscillator ........................................................................................ 15 10 Soft startup .................................................................................... 15 11 Adjustable current limit set point ................................................. 15 12 FB pin and COMP pin .................................................................... 16 13 Burst mode .................................................................................... 17 14 Automatic auto-restart after overload or short-circuit ................ 18 15 Open-loop failure protection ........................................................ 19 16 Layout guidelines and design recommendations ....................... 20 17 Package information ..................................................................... 22 17.1 SSO10 package information ........................................................... 22 17.2 DIP-7 package information .............................................................. 24 18 Ordering information ..................................................................... 26 19 Revision history ............................................................................ 27 2/28 DocID022794 Rev 2