AP3965 Datasheet | Diodes Incorporated

A Product Line of Diodes Incorporated AP3965/66/71 PRIMARY SIDE POWER SWITCHER FOR FLYBACK/NON-ISOLATED BUCK SMPS 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 pensation function for tight constant voltage regulation. The AP3965/66/71 solution has fewer ponent numbers, smaller size, and lower total cost. The AP3965 is packaged in SO7. The AP3966/71 is available in PDIP-7. 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 pensation - 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 for 12W Adapter and 5W Buck - Totally Lead-free & Fully Ro HS pliant (Note 2 & 3) - Halogen and Antimony Free. “Green” Device (Note 4) Pin Assignments M Package (SO7) CPC 1 FB 2 VCC 3 CS 4 For AP3965 7 GND 6C 5C P7 Package (PDIP-7) CPC...