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AP3988 - PRIMARY SIDE POWER SWITCHER

General 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.

Key Features

  • Primary Side Control for Eliminating Opto-coupler Secondary CV/CC Control Circuitry Built-in NPN Transistor with 700VCBO Low Start-up Current: 0.2A (Typ. ) Internal Output Cable Voltage Drop Compensation Hiccup Function to Improve Short Circuit Protection Better Over Voltage Protection Better Over Temperature Protection Low Total Cost Solution Output Power Range (Note 1): AP3988 for 5.5W Adapter AP3989 for 8W Adapter AP3990 for 12W Adapter To.

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Full PDF Text Transcription for AP3988 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for AP3988. For precise diagrams, and layout, please refer to the original PDF.

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...

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cription 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).

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