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.
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Ktec Frequency shuffling for EMI
Ext...