TIDUFA5
December
2024
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
Small Compact Size
2.2.2
Transformerless Design
2.3
Highlighted Products
2.3.1
BQ25790 IIC Controlled, 1–4 Cell,
5A Buck-Boost Battery Charger
2.3.2
TPS3422 Low-Power, Push-Button Controllers
With Configurable Delay
2.3.3
SN74LVC1G74 Single
Positive-Edge-Triggered D-Type Flip-Flop With Clear and Preset
2.3.4
TPS259470 2.7V–23V, 5.5A, 28mΩ True Reverse
Current Blocking eFuse
2.3.5
TPS54218 2.95V to 6V Input, 2A Synchronous
Step-Down SWIFT Converter
2.3.6
TPS54318 2.95V to 6V Input, 3A Synchronous
Step-Down SWIFT Converter
2.3.7
LM5158 2.2MHz, Wide VIN, 85V Output
Boost, SEPIC, or Flyback Converter
2.3.8
TPS61178 20V Fully Integrated Sync Boost With
Load Disconnect
2.3.9
LMZM23601 36V, 1A Step-Down DC-DC Power Module
in 3.8mm × 3mm Package
2.3.10
TPS7A39 Dual, 150mA, Wide-VIN,
Positive and Negative Low-Dropout (LDO) Voltage Regulator
2.3.11
TPS74401 3.0A, Ultra-LDO With Programmable
Soft Start
2.3.12
TPS7A96 2A, Ultra-Low Noise, Ultra-high PSRR
RF Voltage Regulator
2.3.13
LM3880 3-Rail Simple Power Sequencer With Fixed Time Delay
2.3.14
DAC53401 10-Bit, Voltage-Output DAC With
Nonvolatile Memory
2.3.15
INA231 28V, 16-bit, I2C Output
Current, Voltage, and Power Monitor With Alert in WCSP
3 System Design Theory
3.1
Input Section
3.1.1
Buck-Boost Charger
3.1.2
Power On or Off
3.2
Designing SEPIC and Cuk Based High-Voltage
Power Supply
3.2.1
Basic Operation Principle of SEPIC and Cuk
Converters
3.2.2
Dual High-Voltage Power Supply Design Using
Uncoupled Inductors With SEPIC and Cuk
3.2.2.1
Duty Cycle
3.2.2.2
Inductor Selection
3.2.2.3
Power MOSFET Verification
3.2.2.4
Output Diode Selection
3.2.2.5
Coupling Capacitor Selection
3.2.2.6
Output Capacitor Selection
3.2.2.7
Input Capacitor Selection
3.2.2.8
Programming the Output Voltage With Adjustable function
3.3
Designing the Low-Voltage Power
Supply
3.3.1
Designing the TPS54218 Through WEBENCH Power Designer
3.3.2
±5V Transmit Supply Generation
3.4
System Clock Synchronization
3.5
Power and Data Output Connector
3.6
System Current and Power Monitoring
4 Hardware, Testing Requirements, and Test Results
4.1
Hardware Requirements
4.2
Test Setup
4.3
Test Results
4.3.1
Efficiency Test Result
4.3.2
Line Regulation Testing Result
4.3.3
Spectrum Test Result
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
High-Voltage Supply Layout
5.2
Tools and Software
5.3
Documentation Support
5.4
Support Resources
5.5
Trademarks
5.2 Tools and SoftwareTools Radar Toolbox for
mmWave Sensors The Radar toolbox is a collection of demonstrations, software tools, and documentation designed
to assist in the evaluation of TI Radar devices. Software UNIFLASH UniFlash is a software tool for programming on-chip flash on TI microcontrollers and wireless
connectivity devices and onboard flash for TI
processors. UniFlash provides both graphical and
command-line interfaces.