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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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Other Datasheets by Diodes Incorporated

Part Number Description
AP3983B HIGH FREQUENCY PRIMARY SIDE POWER SWITCHER
AP3983C HIGH FREQUENCY PRIMARY SIDE POWER SWITCHER
AP3983D HIGH FREQUENCY PRIMARY SIDE POWER SWITCHER
AP3983E HIGH FREQUENCY PRIMARY SIDE POWER SWITCHER
AP3983R PRIMARY SIDE REGULATED SWITCHING MODE POWER SUPPLY CONTROLLER

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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).