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NCP1340UHDGEVB: High-Voltage, Quasi-Resonant Controller Featuring Valley Lock-Out Switching Evaluation Board

The NCP1340UHDGEVB Evaluation Board is designed to effectively evaluate the NCP1340, which is a highly integrated quasi−resonant flyback controller suitable for designing high−performance off−line power converters. With an integrated active X2 capacitor discharge feature, the NCP1340 can enable no−load power consumption below 30 mW. The quasi−resonant current−mode flyback stage features a proprietary valley−lockout circuitry, ensuring stable valley switching. This system works down to the 6th valley and transitions to a frequency foldback mode to reduce switching losses. As the load decreases further, the NCP1340 enters quiet−skip mode to manage the power delivery. To help ensure converter ruggedness, the NCP1340 implements several key protective features such as internal brownout detection, a non−dissipative Over Power Protection (OPP) for constant maximum output power regardless of input voltage, a latched over voltage and NTC−ready over temperature protection through a dedicated pin, and line removal detection to safely discharge the X2 capacitors when the line is removed.
Evaluation/Development Tool Information
Product Status Compliance Short Description Parts Used Action
NCP1340UHDGEVB Active
Pb-free
High-Voltage, Quasi-Resonant Controller Featuring Valley Lock-Out Switching Evaluation Board BAS20HT1G NCP1340B1DR2G
NCP43080DMNTWG NCP431ACSNT1G
Technical Documents
Type Document Title Document ID/Size Rev
Eval Board: BOM NCP1340UHDGEVB Bill Of Materials (ROHS Compliant) NCP1340UHDGEVB_BOM_ROHS.pdf - 62 KB  0 
Eval Board: Gerber NCP1340UHDGEVB Gerber Layout Files (Zip Format) NCP1340UHDGEVB_GERBER.zip - 70 KB  0 
Eval Board: Schematic NCP1340UHDGEVB Schematic NCP1340UHDGEVB_SCHEMATIC.pdf - 74 KB  0 
Eval Board: Test Procedure Test Procedure NCP1340UHDGEVB_TEST_PROCEDURE.pdf - 209 KB  1 
Video High-Voltage, Quasi-Resonant Controller Featuring Valley Lock-Out Switching Evaluation Board - NCP1340UHDGEVB WVD17632/D   
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High-Voltage, Quasi-Resonant Controller Featuring Valley Lock-Out Switching Evaluation Board - NCP1340UHDGEVB
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