Datasheet4U Logo Datasheet4U.com

AP3984 - PRIMARY SIDE POWER SWITCHER

General Description

The AP3984 is a 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 and PC auxiliary power supplies.

Key Features

  • Primary Side Control for Eliminating Opto-coupler.
  • Built-in 700V BJT.
  • Excellent Transient Characteristics.
  • High Voltage and Super-speed Start up.
  • External Adjustable Output Cable Voltage Drop Compensation.
  • Ultra-low No-load Power Consumption(.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
AP3986I N-CHANNEL ENHANCEMENT MODE POWER MOSFET Advanced Power Electronics
AP3986P N-CHANNEL ENHANCEMENT MODE POWER MOSFET Advanced Power Electronics
AP3987I N-CHANNEL ENHANCEMENT MODE POWER MOSFET Advanced Power Electronics
AP3987P N-CHANNEL ENHANCEMENT MODE POWER MOSFET Advanced Power Electronics
AP3987P-HF N-CHANNEL ENHANCEMENT MODE POWER MOSFET Advanced Power Electronics

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.

View original datasheet text
NEW PRODUCT AP3984 PRIMARY SIDE POWER SWITCHER FOR OFF-LINE SMPS Description The AP3984 is a 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 and PC auxiliary power supplies. The AP3984 with built in BJT, regulates the output voltage and current in the primary side by piece-wise pulse frequency modulation (p-PFM) and primary current peak amplitude modulation (AM) in discontinuous conduction mode (DCM). The system operating frequency reduces linearly from heavy load to light load in each interval of the p-PFM, and operating frequency is fixed at medium load by varying primary current peak amplitude.