UC3869 controller equivalent, high voltage green mode pwm controller.
* High voltage startup * Power on soft start reducing MOSFET Vds stress * Efficiency and minimum standby power * Frequency shuffling for EMI * Audio noise free operation .
PWM switching frequency at normal operation is internally fixed and is trimmed to a tight range. At no load condition, .
The UTC UC3869 is a highly integrated current mode PWM control IC with high voltage start up, optimized for high performance, low standby power consumption and cost effective offline flyback converter applications.
PWM switching frequency at normal o.
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