SLVUDN1
December 2025
1
Description
Get Started
Features
Applications
6
1
Evaluation Module Overview
1.1
Introduction
1.2
Kit Contents
1.3
Specification
1.4
Device Information
1.5
General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
2
Hardware
2.1
Additional Image
2.1.1
Using the EVM on a Load with USB-C PD Communication
2.1.2
Using the EVM on a Load Without USB-C PD Communication
3
Implementation Results
3.1
Electrical Performance Specifications
3.2
Test Setup
3.2.1
Test Setup Requirements
3.2.2
Test Setup Diagram of UCG28824EVM-124
3.2.3
Test Points
3.3
Performance Data and Typical Characteristic Curves
3.3.1
Efficiency Result of 4-Point Average at 24-Vout
3.3.2
Efficiency Result of 4-Point Average on 20VOUT
3.3.3
Efficiency Result of 4-Point Average at 15VOUT
3.3.4
Efficiency Result of 4-Point Average at 12-Vout
3.3.5
Efficiency Result of 4-Point Average at 9VOUT
3.3.6
Efficiency Result of 4-Point Average at 5VOUT
3.3.7
Efficiency Typical Results
3.3.8
Output Characteristics
3.3.9
Key Switching Waveforms
3.3.10
Switching Frequency versus Load
3.3.11
Output Ripple Voltage
3.3.12
Load Transient Response
3.3.13
Line Transient Response
3.3.14
Short Term Overload Operation
3.3.15
CCM operation
3.3.16
CISPR32 Class B Conducted EMI Test Result
4
Hardware Design Files
4.1
Schematics
4.2
PCB Layouts
4.3
Transformer Details
4.3.1
ATQ18-T-325UH-W3-A
4.4
Bill of Materials
5
Additional Information
Trademarks
Features
93-95% efficiency under full-load operation over entire input voltage range
2W/cm
3
(5.4cm × 2.67cm × 1.6cm) power density enabled by 140kHz maximum switching frequency
Self-bias and auxless-sense, integrated current sense, integrated HV start-up and integrated X-cap discharge enable lowest BOM cost by integration
Comprehensive protection features including OVP, OTP, short circuit, overcurrent, and brown-in/out protections
USB-C output enables full system-level evaluation for end-equipments like adapters, notebook chargers, and USB wall outlets