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    The SD778XD is a low PFC non isolated  buck controller, it has a built-in high voltage power MOSFET, is used together with a pre-stage APFC boost circuit to achieve two stage no flicker application.

    The SD778XD provides accurate constant current control and operates in boundary conduction mode (BCM). The SD778XD provides complete protections such as short LED protection, open LED protection and over temperature protection, etc.


Main feature
  • Non isolated buck topology

  • Boundary Conduction Mode

  • Built-in 500V 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
SD7782D DIP-7-300-2.54 SD7782D Halogen free Tube
SD7784D DIP-7-300-2.54 SD7784D Halogen free Tube
Block Diagram

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