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Onsemi NCP1239 | Demoboard NCP1239B65WGEVB

65W, 19V, Power Supply Evaluation Board

Details

TopologieSperrwandler
Eingangsspannung85-265 V
Ausgang 119 V / 3.15 A
Ausgang 219 V / 3.4 A

Beschreibung

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.

Eigenschaften

Remark: BOM is added with Schematic pdf.

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads Status Produktserie Muster
744772010
Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.
750314896SPEC
4 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre. Transformer
Artikel Nr. Daten­blatt Simu­lation
744772010
750314896SPEC
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads Status Produktserie Muster