Texas Instruments UCC28C56EVM-066, User Manual

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User’s Guide
Using the UCC28C56EVM-066 High-Density 40-W
Auxiliary Power Supply for 800-V Traction Inverters
Table of Contents
1 General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines ............................................ 2
2 Description .............................................................................................................................................................................. 3
2.1 EVM Electrical Performance Specifications....................................................................................................................... 4
3 Schematic Diagram ................................................................................................................................................................ 5
4 EVM Setup and Operation ...................................................................................................................................................... 6
4.1 Recommended Test Equipment......................................................................................................................................... 6
4.2 External Connections......................................................................................................................................................... 6
4.3 EVM Test Points................................................................................................................................................................. 8
5 Performance Data ................................................................................................................................................................... 9
5.1 Efficiency Versus Load, 10% to 100% Load....................................................................................................................... 9
5.2 Efficiency Versus VIN at 100% Load.................................................................................................................................. 9
5.3 Power Loss Versus Load, 10% to 100% Load................................................................................................................. 10
5.4 Load Regulation, 10% to 100% Load............................................................................................................................... 10
5.5 Light Load Regulation, 0-mA to 200-mA Load................................................................................................................. 11
5.6 Line Regulation, Various Loads........................................................................................................................................ 11
5.7 Startup Waveforms........................................................................................................................................................... 12
5.8 Shutdown Waveforms...................................................................................................................................................... 14
5.9 Output Voltage Ripple...................................................................................................................................................... 16
5.10 Steady State Switching Waveforms............................................................................................................................... 18
5.11 Transient Load Waveforms............................................................................................................................................. 20
5.12 Over Current and Short Circuit Protections.................................................................................................................... 22
5.13 Stability Measurements.................................................................................................................................................. 24
5.14 Thermal Measurements................................................................................................................................................. 26
6 Assembly and Printed Circuit Board (PCB) ....................................................................................................................... 30
7 Bill of Materials (BOM) .......................................................................................................................................................... 32
8 Revision History ................................................................................................................................................................... 35
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SLUUCN1C – JUNE 2022 – REVISED DECEMBER 2022
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Using the UCC28C56EVM-066 High-Density 40-W Auxiliary Power Supply for
800-V Traction Inverters
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