TIDUFH6
May 2026
1
Description
Resources
Features
Applications
6
1
System Description
1.1
Key System Specifications
2
System Overview
2.1
Block Diagram
2.2
Design Considerations
2.2.1
48V Smart Actuator Architectures
2.2.1.1
48V Distribution Architecture
2.2.1.2
48V and 12V Distribution Architecture
2.2.1.3
48V and 12V Supplies Architecture
2.2.1.4
Reference Design Architecture
2.2.2
Low Power Sleep Mode Architecture
2.2.3
Bulk Capacitance Estimation
2.2.4
EMI PI Filter
2.2.5
Reverse Polarity Protection
2.2.6
LIN Bus Fault Voltage for 48V Architecture
2.3
Highlighted Products
2.3.1
TLIN4029A-Q1
2.3.2
MSPM0G3507-Q1
2.3.3
DRV8363-Q1
2.3.4
LM5168P-Q1
2.3.5
TPS7B81-Q1
3
Hardware, Software, Testing Requirements, and Test Results
3.1
Hardware Requirements
3.1.1
Reference Design Hardware and Programming Setup
3.2
Software
3.3
Test Setup
3.4
Test Results
3.4.1
LIN Remote Wake-Up Timing Analysis
3.4.1.1
Test Setup
3.4.1.2
Test Results
3.4.2
System Sleep Current Analysis
3.4.2.1
Test Setup
3.4.2.2
Test Results
3.4.3
DC Link Voltage Ripple
3.4.3.1
Test Setup
3.4.3.2
Test Results
3.4.4
Thermal Images
4
Design and Documentation Support
4.1
Design Files
4.1.1
Schematics
4.1.2
BOM
4.1.3
PCB Layout Recommendations
4.1.3.1
Layout Prints
4.1.3.2
Gerber Files
4.2
Tools and Software
4.3
Documentation Support
4.4
Support Resources
Trademarks
5
About the Author
Design Guide
Automotive 48V 300W HVAC Pump, Blower, and Fan Reference Design