TIDUF49
February 2024
1
Description
Resources
Features
Applications
6
1
System Description
1.1
Key System Specifications
2
System Overview
2.1
System Block Diagram
2.2
Design Considerations
2.3
Highlighted Products
2.3.1
DP83RG720S-Q1 (Automotive SPE PHY)
2.3.2
TPS1HTC30-Q1 (HSS)
2.3.3
LM5157x-Q1 and LM5158x-Q1 (PSE PoDL Boost Converter)
2.3.4
LMR38020-Q1 (PD PoDL Buck Converter)
2.3.5
TPS629210-Q1 (PD 5.0V Rail Buck Converter)
2.3.6
TPS746-Q1 (PD PHY 3.3V Rail LDO)
2.3.7
TPS745-Q1 (PSE and PD PHY 1.0V Rail LDO)
3
System Design Theory
3.1
System Design Consideration for TIDA-020060 (PSE)
3.1.1
Ethernet PHY
3.1.2
PHY Power Supply
3.1.3
PSE Specific PoDL Power Supply
3.2
System Design Consideration for TIDA-020061 (PD)
3.3
General Design Consideration for PoDL Coupling Decoupling Network
4
Hardware, Software, Testing Requirements, and Test Results
4.1
Hardware Requirements
4.2
Software Requirements
4.3
Test Setup
4.4
Test Results
5
Design and Documentation Support
5.1
Design Files
5.1.1
Schematics
5.1.2
BOM
5.1.3
PCB Layout Recommendations
5.2
Tools and Software
5.3
Documentation Support
5.4
Support Resources
5.5
Trademarks
6
About the Author