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NCP1237

ON Semiconductor
Part Number NCP1237
Manufacturer ON Semiconductor
Description Fixed Frequency Current Mode Controller
Published Mar 6, 2010
Detailed Description NCP1237 Fixed Frequency Current Mode Controller for Flyback Converters The NCP1237 is a new generation of the NCP12xx ...
Datasheet PDF File NCP1237 PDF File

NCP1237
NCP1237


Overview
NCP1237 Fixed Frequency Current Mode Controller for Flyback Converters The NCP1237 is a new generation of the NCP12xx fixed−frequency current−mode controllers featuring Dynamic Self−Supply (DSS), pin−to−pin compatible with the previous generation.
The DSS 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 transients.
Due to its proprietary Soft−Skip™ mode combined with frequency foldback, the controller exhibits excellent efficiency in light load condition while still achieving very low standby power consumption.
This Soft−Skip feature also dramatically reduces the risk of ac...



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