FAN6248ADPGEVB Implementing High Power Adapter Evaluation Board User's Manual
■ This evaluation board user’s manual provides elementary information about a high efficiency, low light load power consumption reference design that is targeting power adapter or similar type of equipments that accepts 19.5 V.
■ The design utiltizes NCP1616 for PFC front stage to assure unity power factor, NCP13992 for current mode LLC power stage, and FAN6248 for secondary side synchronous rectification to maximize efficiency.
■ The NCP1616 is a high voltage PFC controller with CrM operation. Additionally, it has an innovative Current Controlled Frequency Foldback (CCFF) method to maximizes the efficiency at both nominal and light load condition.
■ The NCP13992 is a current mode controller for half bridge resonant converter featuring 600 V gate drivers, high−frequency operation from 20 kHz up to 750 kHz, automatic dead−time with maximum dead−time clamp, and skip mode operation for improved light load efficiency.
■ The secondary side controller FAN6248 is an advanced synchronous rectifier controller that is optimized for LLC resonant converter topology with minimum external components. It has two driver stages for driving the SR MOSFETs which are rectifying the output current of the secondary transformer. These two gate driver stages have dedicated sense inputs and operate independently each other.
●Key Features:
■ High Voltage Start−Up Circuit with Integrated Brownout Detection
■ Wide Input Voltage Range
■ High Efficiency
■ Fast Line/Load Transient Compensation
■ Light Load Operation Mode for Improved Efficiency
■ Overvoltage Protection
■ Auto Recovery Overload Protection
■ Auto Recovery Output Short Circuit Protection
■ Open Feedback Loop Protection
■ Highly Integrated Self−Contained Control of Synchronous Rectification with a Minimum External Components
■ Anti Shoot−Through Control for Reliable SR Operation
■ Light Load Dection for Preventing Inversion Current of SR
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NCP13992 、 FAN6248 、 NCP1616 、 FAN6248ADPGEVB |
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Evaluation Board User's Manual |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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July, 2018 |
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Rev.0 |
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EVBUM2568/D |
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3.9 MB |
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