TIDUFE4
June
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
2.3
Highlighted Products
2.3.1
TAS6684-Q1
2.3.2
LM5125A-Q1
2.3.3
MSPM0G3507-Q1
3 System Design Theory
3.1
Boost Output Capacitance and Maximum Output
Voltage
3.2
Peak Power of the Boost Converter
3.3
Ramp Time and Class-H delay
3.4
Design of the Class-H Two Stage RC
Filter
3.5
Class-H Tracking with Multiple
TAS6684-Q1s
3.6
TAS6684-Q1 Class-H Parameters
3.7
Design Parameters
4 Hardware, Software, Testing Requirements,
and Test Results
4.1
Hardware Requirements
4.2
Software Requirements
4.3
Test Setup
4.3.1
Hardware Setup
4.3.2
Software Setup
4.4
Test Results
4.4.1
Test Results of Audio Amplifier
4.4.2
Test Results of Boost Converter
5 Design and Documentation Support
5.1
Design Files
5.1.1
Schematics
5.1.2
BOM
5.1.3
PCB Layout Recommendations
5.1.3.1
Layout Prints
5.2
Software
5.3
Documentation Support
5.4
Support Resources
5.5
Trademarks
6 About the Author
5.3 Documentation SupportTexas Instruments, LM5125A-Q1, Wide-VIN 2.2MHz
dual-phase boost controller with VOUT tracking Texas Instruments, TAS6684-Q1 - 45V, 13A Digital
Input 4-Channel Automotive Class-D Audio Amplifier with Current Sense and Real-time
Load Diagnostics
F. Ji, W. Qiu and F. He, "Design
Considerations of a Dual-Phase Interleaved Boost Converter in Class-H Audio Amplifier
System," PCIM Conference 2025; International Exhibition and Conference for Power
Electronics, Intelligent Motion, Renewable Energy and Energy Management , Nürnberg,
Germany, 2025, pp. 2063-2070, doi: 10.30420/566541272.