VIPER26HN Datasheet PDF - ST Microelectronics

●Description

●The device is an off-line converter with an 800 V avalanche ruggedness power section, a PWM

●controller, user defined overcurrent limit, protection against feedback network disconnection, hysteretic thermal protection, soft start up and safe auto restart after any fault condition.

●Features

●■ 800 V avalanche rugged power section

●■ PWM operation with frequency jittering for low EMI

●■ Operating frequency:

●   – 60 kHz for L type

●   – 115 kHz for H type

●■ Standby power < 50 mW at 265 VAC

●■ Limiting current with adjustable set point

●■ On-board soft-start

●■ Safe auto-restart after a fault condition

●■ Hysteretic thermal shutdown

●Application

●■ Auxiliary power supply for appliances

●■ Power metering

●■ LED drivers

●■ SMPS for set-top boxes, DVD players and recorders