Samsung S3F84A5 User Manuals

Table of Contents

• APPLICATION NOTE

  1
  • Important Notice

    2
  • Revision History

    3
  • Table of Contents

    4
  • List of Figures

    5
  • List of Tables

    6
• 1 OVERVIEW OF HPLED LIGHTING CONTROL SYSTEM

  7
  • 1.1 PIN ASSIGNMENT IN S3F84P4

    7
  • 1.2 KEY FEATURES OF S3F84P4

    8
  • 1.3 SYSTEM PRINCIPLE

    8
    • 1.3.1 BUCK CIRCUIT

      9
    • 1.3.2 SUMMARY

      9
    • 1.3.3 CONSTANT CURRENT CONTROL

      10
• 2 HARDWARE IMPLEMENTATION

  11
  • 2.1 SYSTEM DIAGRAM AND CIRCUIT

    11
  • 2.2 COMPONENTS SELECTION

    12
    • 2.2.1 SELECT THE INDUCTANCE (L1) FOR THE REQUIREMENT OF CURRENT RIPPLE

      12
    • 2.2.2 SELECT THE CAPACITANCE (C2) FOR THE REQUIREMENT OF VOLTAGE RIPPLE

      12
• 3 SOFTWARE IMPLEMENTATION

  13
• 4 SYSTEM VALIDATION

  15
• 5 APPENDIX

  17
  • 5.1 BOM LIST OF KEY CIRCUIT

    17
  • 5.2 APPENDIX 2: SOURCE CODE

    17