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AP3965 Datasheet Primary Side Power Switcher

Manufacturer: Diodes Incorporated

Overview: A Product Line of Diodes Incorporated AP3965/66/71 PRIMARY SIDE POWER SWITCHER FOR FLYBACK/NON-ISOLATED BUCK.

General 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.

Key Features

  • 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 (Note 1):.
  • AP3965 for 5W Adapter and 3W Buck.
  • AP3966 for 10W Adapter and 4.5W Buck.
  • AP3971.

More Datasheets from Diodes Incorporated

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