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STR-A6351

SanKen
Part Number STR-A6351
Manufacturer SanKen
Description STR-A6300 Series
Published Jul 21, 2010
Detailed Description STR-A6300 Application Notes （Ver.1.2） STR-A6300 Series Application Notes(Ver. 1.2) May 15th, 2002 System Engineering ...
Datasheet PDF File STR-A6351 PDF File

STR-A6351
STR-A6351

Overview
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 components 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 comparator compensated for temperature in the control part ●Low start-up circuit current(50uA 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) ・ Overvoltage Protection with latch mode (OVP) ・ Thermal Shutdown with latch mode (TSD) Page 3 STR-A6300 Application Notes （Ver.
1.
2） ...


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