LC5515D データシートの表示（PDF） - Sanken Electric co.,ltd.

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LC5515D

LC5500 Series Single-Stage Power Factor Corrected Off-Line Switching Regulators

Sanken Electric co.,ltd. 

Table of Contents

General Specifications

1

Block Diagrams and Pin Descriptions

3

Package Drawings

5

Electrical Characteristics

9

Application Circuit Examples

15

Operation Description

17

On-Width Control Operation

17

Startup Operation

19

Operation Modes at Startup

21

Soft-Start Function

21

Quasi-Resonant Operation and Bottom-On Timing

22

Latch Function

25

Overvoltage Protection (OVP)

26

Overload Protection (OLP)

30

Overcurrent Protection (OCP)

32

Input Compensation Function for Overcurrent Protection

33

OCP Threshold Voltage with and without the OCP Input

Compensation Circuit

33

Thermal Shutdown Protection

35

Maximum On-Width Limiting Function

35

Design Considerations

35

Peripheral Components

35

Transformer Design

35

Trace and Component Layout Design

37

LC5500-AN, Rev.1.2

2

SANKEN ELECTRIC CO., LTD.

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