Infineon ICE2QS03G Manuals

Infineon ICE2QS03G Manuals

Manuals and User Guides for Infineon ICE2QS03G. We have 1 Infineon ICE2QS03G manual available for free PDF download: Application Note

Infineon ICE2QS03G Application Note

Infineon ICE2QS03G Application Note (14 pages)

Converter Design Using Quasi-resonant PWM Controller

Brand: Infineon | Category: Controller | Size: 1 MB

Table of Contents

Table of Contents
4
1 Introduction

5
2 IC Description

5
- Main Features
  5
- Pin Layout
  5
- Pin Functions
  5
  - ZC (Zero Crossing)
    6
  - FB (Feedback)
    6
  - CS (Current Sensing)
    6
  - Gate (Gate Drive Output)
    6
  - HV (High Voltage)
    6
  - VCC (Power Supply)
    6
  - GND (Ground)
    6
3 Overview of Quasi-Resonant Flyback Converter

6
4 Functions and Application Overview

8
- VCC Pre-Charging and Typical VCC Voltage During Start-Up
  8
- Soft-Start
  9
- Normal Operation
  9
  - Switch-On Determination
    9
  - Switch-Off Determination
    10
- Active Burst Mode Operation
  11
- Current Sense
  12
- Feedback
  12
- Zero Crossing
  12
- Gate Drive
  13
- Others
  13
5 Typical Application Circuit

14
6 References

14

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