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AP3990 - PRIMARY SIDE POWER SWITCHER

Download the AP3990 datasheet PDF. This datasheet also covers the AP3988 variant, as both devices belong to the same primary side power switcher family and are provided as variant models within a single manufacturer datasheet.

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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (AP3988-Diodes.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
AP3990I-HF N-CHANNEL ENHANCEMENT MODE POWER MOSFET Advanced Power Electronics
AP3990I-HF-3 N-CHANNEL ENHANCEMENT MODE POWER MOSFET Advanced Power Electronics
AP3990P N-CHANNEL ENHANCEMENT MODE POWER MOSFET Advanced Power Electronics
AP3990P-3 N-CHANNEL ENHANCEMENT MODE POWER MOSFET Advanced Power Electronics
AP3990R-HF N-CHANNEL ENHANCEMENT MODE POWER MOSFET Advanced Power Electronics

Other Datasheets by Diodes Incorporated

Part Number Description
AP3917B UNIVERSAL AC VOLTAGE STEP DOWN POWER SWITCHER
AP3917D UNIVERSAL AC VOLTAGE STEP DOWN POWER SWITCHER
AP3927D HIGH-PERFORMANCE AC-DC OFFLINE REGULATOR
AP3928 UNIVERSAL AC VOLTAGE STEP-DOWN POWER SWITCHER
AP39303 QUASI-RESONANT PWM SWITCHER

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.

View original datasheet text
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).