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IDP2303A
Infineon IDP2303A Manuals
Manuals and User Guides for Infineon IDP2303A. We have
1
Infineon IDP2303A manual available for free PDF download: Design Manual
Infineon IDP2303A Design Manual (50 pages)
For TV power supply with digital multi-mode PFC + LLC combo IC
Brand:
Infineon
| Category:
Controller
| Size: 1.98 MB
Table of Contents
Table of Contents
1
About this Document
1
1 Abstract
3
2 Introduction
4
IC Introduction
4
Pin Configuration and Description
4
Product Highlights
5
Application
6
3 PFC Design
7
Target Specifications
7
Power Stage
7
Bridge Rectifier
7
Selection of Power MOSFET
8
MOSFET Gate Driving
9
Unique Gate Drive Concept
9
Gate Drive Stability
9
Other Design Tips for the Gate Driving Circuit
10
Boost Diode
10
Boost Inductor
10
Control Parameters and Protections
12
Output Voltage Sense and Protections
12
Redundant OVP (ROVP)
13
PFC ZCD Divider Design
15
Current Sense and over Current Protection (OCP)
15
Over Current Protection(OCP) Tolerance & Selection of Current Sense Resistor
16
Verification of PFC Inductance with OCP Tolerance
19
Frequency Law for Multi-Mode PFC
19
Multimode PFC
19
Frequency Law
20
Setting of �������� and ��������
21
AC Brown-In & out
22
4 LLC Design
23
Target Specifications
23
Power Stage
23
System Parameter Calculation
23
Main Transformer and Resonant Network
24
Transformer Turns Ratio
24
Equivalent Circuit and Resonant Network
25
Calculation of Transformer Turn Ratio
27
Selection of Resonant Factor M
28
Selection of Resonant Capacitor
28
Power MOSFET Selection
29
MOSFET Gate Driving
29
Output Rectifier
29
Control Parameters and Protections
30
VCO Frequency Curve
30
Xd835;�_������������ and ��_������������
31
Xd835;�_������������ and ��_������������
31
Xd835;�_���������� ∶ ��_���������� (Light Load) : ��_���&#X
32
Current Sense and OCP
32
Dead Time
33
LLC Model and Regulation Loop
33
LLC Small Signal Model
33
VCO Modeling
33
LLC Regulation Loop
34
5 General Features and System Design Considerations
36
VCC Supply and High Voltage Startup Cell
36
Start up
36
Selection of VCC Capacitor
37
VCC Supply Circuit Linear Regulator
37
LLC High-Side VCC (HSVCC) Cap
38
Touch Current
38
Black Box
38
6 Tips on PCB Layout
40
Star Connection of Grounding
40
Filtering Capacitors
40
PFC ZCD Signal Detection Circuit
41
HBFB Voltage Detection Circuit
41
LLC High Side Bootstrap Circuit
41
Minimum Current Flowing Loop Area
42
Passing 4 Kv Lightning Surge Test
42
Other Considerations
43
7 Usage of Dpvision
44
Installation of Dpvision
44
Parameter Setting with Dpvision
46
8 References
49
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