OB2278 controller equivalent, current mode pwm controller.
Power On Soft Start Extended Burst Mode Control For Improved Efficiency and Minimum Standby Power Design
* Audio Noise Free Operation
* External Programmable PWM .
PWM switching frequency at normal operation is externally programmable and trimmed to tight range. At no load or light .
OB2278 is a highly integrated current mode PWM control IC optimized for high performance, low standby power and cost effective offline flyback converter applications. PWM switching frequency at normal operation is externally programmable and trimmed .
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