Diodes Incorporated — Analog and discrete power solutions
Back to Inactve Datasheet Archive

AP3971 (Obsolete)

Contact Sales

Log in or register to manage email notifications about changes to datasheets or PCNs for this part.

Description

The AP3965/66/71 consists of a primary side regulation controller and a high voltage transistor, and is specially designed for off-line power supplies within 12W output power or non-isolated buck applications within 5W. Typical applications include adapter for ADSL, auxiliary supplies or open frame types for appliances.

The AP3965/66/71 operates at pulse frequency modulation (PFM), and provides accurate constant voltage, constant current (CV/CC) regulation without requiring an opto-coupler and secondary control circuitry. It has internal cable compensation function for tight constant voltage regulation.

The AP3965/66/71 solution has fewer component numbers, smaller size, and lower total cost.

Feature(s)

  • Primary Side Control for Eliminating Opto-coupler and
  • Secondary CV/CC Control Circuitry
  • Built-in NPN Transistor with 700VCBO
  • Low Start-up Current: 0.2μA (Typ)
  • Internal Output Cable Voltage Drop Compensation
  • Random Frequency Modulation for Low EMI
  • Short Circuit Protection
  • Low Total Cost Solution
  • Output Power Range
  • Totally Lead-free & Fully RoHS Compliant
  • Halogen and Antimony Free. “Green” Device

   

Application(s)

  • Adapters
  • Set Top Boxes
  • Auxiliary Supplies
  • Appliances

Product Specifications

Product Parameters

Related Content

Quality Documentation

Technical Documents

Recommended Soldering Techniques

TN1.pdf