TIDUEX8
September 2020
Description
Resources
Features
Applications
5
1
System Description
1.1
Key System Specifications
2
System Overview
2.1
Block Diagram
2.2
Highlighted Products
2.2.1
TPS23730
2.2.2
TLV431
2.3
System Design Theory
2.3.1
IEEE802.3bt Introduction
3
Hardware, Testing Requirements, and Test Results
3.1
Required Hardware
3.1.1
Hardware
3.2
Testing and Results
3.2.1
Test Setup
3.2.2
Test Results
3.2.2.1
Efficiency
3.2.2.2
Control Loop Gain/Stability
3.2.2.3
Load Transient
3.2.2.4
Input and Output Ripple
3.2.2.5
Switching Waveforms
3.2.2.6
Start Up Response
3.2.2.7
Soft-Stop Response
3.2.2.8
Output Short Circuit Response
3.2.2.9
Thermal Performance
4
Design Files
4.1
Schematics
4.2
Bill of Materials
4.3
PCB Layout Recommendations
4.3.1
Layout Prints
4.4
Altium Project
4.5
Gerber Files
4.6
Assembly Drawings
5
Related Documentation
5.1
Trademarks
6
Terminology
7
About the Author
Features
Supports Power Levels for IEEE802.3bt Type 3
Isolated Active Clamp Forward Design
Frequency Dithering for EMI Reduction
Soft-Start Control with Advanced Startup
Soft-Stop Shutdown
Hiccup Mode Overload Protection
Automatic Maintain Power Signature (MPS)
Integrated Low 0.3-Ω Power Switch Supports 60 W of PSE Power