NCP1339CGEVB: High-Voltage, Quasi-Resonant, Controller Featuring Valley Lock-Out and PSM Evaluation Board
The NCP1339CGEVB evaluation board is designed to quickly assess the NCP1339, a highly integrated quasi-resonant flyback controller capable of controlling rugged and high-performance off-line power supplies as required by adapter applications. With an integrated active X-cap discharge feature and power savings mode, the NCP1339 can enable no-load power consumption below 10 mW for 65 W notebook adapters. 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 toggles to a frequency foldback mode to eliminate switching losses. When the loop tends to force below 25-kHz frequencies, the NCP1339 skips cycles to contain the power delivery. To help build rugged converters, the controller features several key protective features: an internal brown-out, a non-dissipative Over Power Protection for a constant maximum output current regardless of the input voltage, a latched over voltage protection through a dedicated pin. For more information please see the datasheet.
|Eval Board: BOM||NCP1339CGEVB Bill of Materials ROHS Compliant||NCP1339CGEVB_BOM_ROHS - 219 KB||1|
|Eval Board: Gerber||NCP1339CGEVB Gerber Layout Files (Zip Format)||NCP1339CGEVB_GERBER - 399 KB||0|
|Eval Board: Schematic||NCP1339CGEVB Schematic||NCP1339CGEVB_SCHEMATIC - 168 KB||0|
|Eval Board: Test Procedure||NCP1339CGEVB Test Procedure||NCP1339CGEVB_TEST_PROCEDURE - 608 KB||0|
|Eval Board: Manual||NCP1339CGEVB User's Manual||EVBUM2248/D - 650 KB||0|
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