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AP3988

Part Number	AP3988
Manufacturer	Diodes
Description	PRIMARY SIDE POWER SWITCHER
Published	Aug 2, 2014
Detailed Description	A Product Line of Diodes Incorporated AP3988/89/90 PRIMARY SIDE POWER SWITCHER FOR OFF-LINE SMPS Description The AP398...
Datasheet	AP3988 PDF File

Overview

A Product Line of Diodes Incorporated AP3988/89/90 PRIMARY SIDE POWER SWITCHER FOR OFF-LINE SMPS Description The AP3988/89/90 is a performance enhanced power switcher for power supplies with better conversion efficiency, better voltage & current accuracy, and improved protection functions.
Typical applications include charger, adapter for ADSL, home appliance power supply, LED lighting power supply and PC auxiliary power supplies.
The controller regulates the output voltage and current in the primary side by piece-wise Pulse Frequency Modulation (pPFM) in discontinuous conduction mode (DCM).
The system operating frequency reduces linearly from heavy load to light load in each interval of t...

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