OB5269 High Voltage Green Mode PWM Controller GENERAL DESCRIPTION FEATURES OB5269 is a highly integrated current mode PWM ■ High Voltage Startup control IC with high voltage start up, optimized for ■ Power on Soft Start Reducing MOSFET Vds high performance, low standby power Stress consumption and cost effective offline flyback converter applications.
PWM switching frequency at normal operation is internally fixed and is trimmed to a tight range.
At no load or light load condition, the IC operates in extended ‘burst mode’ to minimize switching loss.
Very low standby power consumption and very high conversion efficiency is thus achieved.
■ ■ ■ ■ ■ Ktec Frequency shuffling for EMI Ext...

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