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FAN400C

Fairchild Semiconductor
Part Number FAN400C
Manufacturer Fairchild Semiconductor
Description PWM Flyback Power Controller
Published May 1, 2010
Detailed Description FAN400C — Low-Power, Green-Mode, PWM Flyback Power Controller without Secondary Feedback (CC) www.DataSheet4U.com Sept...
Datasheet PDF File FAN400C PDF File

FAN400C
FAN400C

Overview
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 supply to meet international power conservation requirements.
Another advantage of the FAN400C is that the typical startup current is only 8μA, while the typical operating current can be as low as 3.
6mA.
A large startup resistance can be used to achieve higher power conversion efficiency.
FAN400C integ...


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