NCP1239B65WGEVB: 65W, 19V, Power Supply Evaluation Board

The NCP1239B65WGEVB is a 65 W, 19V, fixed-frequency current-mode controller Evaluation Board featuring the Dynamic Self-Supply. This function greatly simplifies the design of the auxiliary supply and the Vcc capacitor by activating the internal startup current source to supply the controller during start-up, transients, latch, stand-by etc. With a supply range up to 35 V, the controller hosts a jittered 65 or 100-kHz switching circuitry operated in peak current mode control. When the power on the secondary side starts to decrease, the controller automatically folds back its switching frequency down to minimum level of 26 kHz. As the power further goes down, the part enters skip cycle while limiting the peak current that insures excellent efficiency in light load condition. It features a timer-based fault detection that ensures the detection of overload and an adjustable compensation to help keep the maximum power independent of the input voltage.
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製品 状態 Compliance 簡単な説明 使用パーツ アクション
NCP1239B65WGEVB Active
Pb-free
65W, 19V, Power Supply Evaluation Board NCP1239BD65R2G
技術文書
タイプ ドキュメント・タイトル ドキュメント ID/サイズ 修正
Eval Board: BOM NCP1239B65WGEVB Bill of Materials ROHS Compliant NCP1239B65WGEVB_BOM_ROHS.pdf - 62 KB  1 
Eval Board: Gerber NCP1239B65WGEVB GERBER Layout Files (Zip Format) NCP1239B65WGEVB_GERBER.zip - 580 KB  0 
Eval Board: Schematic NCP1239B65WGEVB SCHEMATIC NCP1239B65WGEVB_SCHEMATIC.pdf - 188 KB  1 
Eval Board: Test Procedure NCP1239B65WGEVB TEST PROCEDURE NCP1239B65WGEVB_TEST_PROCEDURE.pdf - 123 KB  0 
Video 65W, 19V, Power Supply Evaluation Board - NCP1239B65WGEVB WVD17592/D   
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65W, 19V, Power Supply Evaluation Board - NCP1239B65WGEVB
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