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STR-Y6763 bảng dữ liệu(PDF) 2 Page - Sanken electric |
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STR-Y6763 bảng dữ liệu(HTML) 2 Page - Sanken electric |
2 / 34 page STR-Y6700 Series STR-Y6700 - DS Rev.4.0 SANKEN ELECTRIC CO.,LTD. 2 Oct. 07, 2014 CONTENTS General Descriptions ------------------------------------------------------------------------------------------ 1 1. Absolute Maximum Ratings----------------------------------------------------------------------------- 3 2. Electrical Characteristics -------------------------------------------------------------------------------- 4 3. Performance Curves -------------------------------------------------------------------------------------- 6 3.1 Derating Curves------------------------------------------------------------------------------------ 6 3.2 Ambient Temperature versus Power Dissipation Curves---------------------------------- 6 3.3 MOSFET Safe Operating Area Curves ------------------------------------------------------- 8 3.4 Transient Thermal Resistance Curves--------------------------------------------------------- 9 4. Functional Block Diagram----------------------------------------------------------------------------- 10 5. Pin Configuration Definitions------------------------------------------------------------------------- 10 6. Typical Application Circuit --------------------------------------------------------------------------- 11 7. Package Outline ----------------------------------------------------------------------------------------- 12 8. Marking Diagram --------------------------------------------------------------------------------------- 12 9. Operational Description ------------------------------------------------------------------------------- 13 9.1 Startup Operation ------------------------------------------------------------------------------- 13 9.2 Undervoltage Lockout (UVLO) --------------------------------------------------------------- 13 9.3 Bias Assist Function ----------------------------------------------------------------------------- 13 9.4 Soft Start Function ------------------------------------------------------------------------------ 14 9.5 Constant Output Voltage Control ------------------------------------------------------------ 15 9.6 Leading Edge Blanking Function------------------------------------------------------------- 15 9.7 Quasi-Resonant Operation and Bottom-On Timing Setup ------------------------------ 15 9.7.1 Quasi-Resonant Operation------------------------------------------------------------ 15 9.7.2 Bottom-On Timing Setup ------------------------------------------------------------- 16 9.8 BD Pin Blanking Time -------------------------------------------------------------------------- 17 9.9 Multi-mode Control ----------------------------------------------------------------------------- 18 9.9.1 One Bottom-Skip Quasi-Resonant Operation------------------------------------- 18 9.9.2 Automatic Standby Mode Function ------------------------------------------------- 19 9.10 Maximum On-Time Limitation Function --------------------------------------------------- 19 9.11 Overcurrent Protection (OCP) ---------------------------------------------------------------- 20 9.11.1 Overcurrent Protection 1 (OCP1) --------------------------------------------------- 20 9.11.2 Overcurrent Protection 2 (OCP2) --------------------------------------------------- 20 9.11.3 OCP1 Input Compensation Function ----------------------------------------------- 20 9.11.4 When Overcurrent Input Compensation is Not Required ---------------------- 23 9.12 Overload Protection (OLP) -------------------------------------------------------------------- 23 9.13 Overvoltage Protection (OVP) ---------------------------------------------------------------- 24 9.14 Thermal Shutdown (TSD)---------------------------------------------------------------------- 24 10. Design Notes ---------------------------------------------------------------------------------------------- 25 10.1 External Components --------------------------------------------------------------------------- 25 10.2 Transformer Design ----------------------------------------------------------------------------- 27 10.3 PCB Trace Layout and Component Placement-------------------------------------------- 28 11. Pattern Layout Example ------------------------------------------------------------------------------- 30 12. Reference Design of Power Supply ------------------------------------------------------------------ 31 OPERATING PRECAUTIONS -------------------------------------------------------------------------- 33 IMPORTANT NOTES ------------------------------------------------------------------------------------- 34 |
Số phần tương tự - STR-Y6763 |
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Mô tả tương tự - STR-Y6763 |
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