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SD782XD
PRIMARY SIDE REGULATED CONSTANT CURRENT LOW PFC ISOLATED FLYBACK CONTROLLER FOR LED DRIVER

    The SD782XD is a primary side regulated constant current low PFC isolated flyback controller, it has a built-in high voltage power MOSFET, is used together with a pre-stage APFC boost circuit to achieve two stage isolated no flicker application.

    The SD782XD provides accurate constant current control and operates in boundary conduction mode (BCM). The Device adopts primary side regulation eliminating the opto-couple for simplifying design and reducing cost.

    The SD782XD provides complete protections such as short LED protection, open LED protection and over temperature protection, etc.


Main feature

  • PSR flyback topology

  • Boundary Conduction Mode

  • Built-in 650V high voltage power MOSFET

  • Leading edge blanking

  • VCC under voltage lockout

  • Over temperature protection

  • Cycle by cycle current limiting

  • Short LED protection and Open LED protection


Ordering Information
Product Name Package form Marking Hazardous Substance Control Packing Type Remarks
SD7824D DIP-8A-300-2.54 SD7824D Halogen free Tube
SD7822D DIP-8A-300-2.54 SD7822D Halogen free Tube
Block Diagram

782XD.png