TIDUF43
August 2024
1
Description
Resources
Features
Applications
6
1
System Description
1.1
Terminology
1.2
Key System Specifications
2
System Overview
2.1
Block Diagram
2.2
Design Considerations
2.3
Highlighted Products
2.3.1
TPS1213-Q1 45V, Low IQ, Automotive High-Side Switch Controller With Low-Power Mode and Adjustable Load Wakeup Trigger
2.3.2
INA296x-Q1 AEC-Q100, –5V to 110V, Bidirectional, 1.1MHz, 8V/μs, Ultra-Precise Current-Sense Amplifier
3
System Design Theory
3.1
Low-Power Mode Considerations
3.2
Precharge Circuit Considerations
3.3
Short-Circuit Protection
3.4
LM74704-Q1 Enable
3.5
Headers
3.5.1
Headers for Configuring INA296B-Q1
3.5.2
Headers for Configuring TPS1213-Q1
3.6
Software Considerations
3.6.1
Fuse Channel Definition
3.6.2
Software Functions
3.7
Optional Output TVS Diode
4
Hardware, Software, Testing Requirements, and Test Results
4.1
Hardware Requirements
4.2
Software
4.3
Test Setup
4.4
Test Results
4.4.1
State Transition
4.4.2
System IQ in Low-Power Mode
4.4.3
Precharge Test
4.4.4
Overcurrent Protection
4.4.5
PWM Overcurrent
4.4.6
Short-Circuit Protection
4.4.7
Thermal Testing
4.4.8
CISPR-25 Emissions Testing
4.4.8.1
Conducted Emissions Testing
4.4.8.2
Radiated Emissions Testing
4.4.8.3
Summary of Results
5
Design and Documentation Support
5.1
Design Files
5.1.1
Schematics
5.1.2
BOM
5.1.3
PCB Layout Recommendations
5.1.3.1
Layout Prints
5.1.4
Altium Project
5.1.5
Gerber Files
5.1.6
Assembly Drawings
5.2
Documentation Support
5.3
Support Resources
5.4
Trademarks
6
About the Author
5.1.3.1
Layout Prints
To download the layer plots, see the design files at
TIDA-020065
.