STRA6351
STRA6351 is STR-A6300 Series manufactured by Sanken.
- Part of the STR-A63xx comparator family.
- Part of the STR-A63xx comparator family.
STR-A6300 Application Notes
（Ver.1.2）
STR-A6300 Series
Application Notes(Ver. 1.2)
May 15th, 2002
System Engineering Dept. Semiconductor Operations Sanken Electric Co., Ltd.
Page 1
STR-A6300 Application Notes
（Ver.1.2）
CONTENTS
1. INTRODUCTION 2. Features
3. LINE-UP OF STR-A6300 SERIES 4. OUTLINE DRAWINGS 5. BLOCK DIAGRAM 6. ELECTRICAL CHARACTERISTICS 7. FUNCTIONS OF EACH TERMINAL AND OPERATION 8. CALCULATION OF PRIMARY INDUCTANCE 9. DESIGN GUIDELINES 3 3 4 5 6 7~8 8~14 14 14~17
- Specifications and information herein are subject to change without notice.
Page 2
STR-A6300 Application Notes
（Ver.1.2）
1 INTRODUCTION
STR-A6300 series is a hybrid IC with a built-in power MOSFET and a controller IC, designed for fly-back converter type SMPS(Switching Mode Power Supply) applications, packaged into DIP8, applicable for PRC operation only for small power SMPS. This IC realizes downsizing and standardizing of a power supply system that reduces external ponents count and simplifies circuit designs. (Note) PRC is abbreviation of “Pulse Ratio Control”(On-width control with fixed OFF-time).
2 Features
- Small sized 8-pin DIP type full molded package, optimum IC for low-height SMPS
- Oscillator is incorporated in the monolithic control IC with adopting On-Chip-Trimming technology.
- Small temperature characteristics variation by adopting a parator pensated for temperature in the control part
- Low start-up circuit current(50u A max)
- Built-in Active Low-Pass Filter for stabilizing the operation at light load
- Avalanche energy guaranteed MOSFET with high VDSS
- The built-in power MOSFET simplifies the surge absorption circuit since the MOSFET guarantees the avalanche energy.
- No VDSS de-rating is required.
- Built-in constant voltage drive circuit
- Various kinds of protection functions
- Pulse-by-pulse Overcurrent Protection(OCP)...
