FAN400C — Low-Power, Green-Mode, PWM Flyback Power Controller without Secondary Feedback (CC) www.
DataSheet4U.
com September 2008 FAN400C — Low-Power, Green-Mode, PWM Flyback Power Controller without Secondary Feedback (CC) Features ƒ Linearly Decreasing PWM Frequency ƒ Green Mode Under Light-Load and Zero-Load Conditions Circuitry Description This highly integrated PWM controller provides several features to enhance the performance of low-power flyback converters.
To minimize standby power consumption, a proprietary green-mode function provides off-time modulation to linearly decrease the switching frequency under light-load and zero-load conditions.
This green mode enables the power sup...

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