SLUUCN1C June   2022  – December 2022 UCC28C50 , UCC28C50-Q1 , UCC28C51 , UCC28C51-Q1 , UCC28C52 , UCC28C52-Q1 , UCC28C53 , UCC28C53-Q1 , UCC28C54 , UCC28C54-Q1 , UCC28C55 , UCC28C55-Q1 , UCC28C56H , UCC28C56H-Q1 , UCC28C56L , UCC28C56L-Q1 , UCC28C57H , UCC28C57H-Q1 , UCC28C57L , UCC28C57L-Q1 , UCC28C58 , UCC28C58-Q1 , UCC28C59 , UCC28C59-Q1

 

  1.   Trademarks
  2. 1General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  3. 2Description
    1. 2.1 EVM Electrical Performance Specifications
  4. 3Schematic Diagram
  5. 4EVM Setup and Operation
    1. 4.1 Recommended Test Equipment
    2. 4.2 External Connections
      1. 4.2.1 Setup and Connection of Test Equipment
      2. 4.2.2 Power On for the First Time
    3. 4.3 EVM Test Points
  6. 5Performance Data
    1. 5.1  Efficiency Versus Load, 10% to 100% Load
    2. 5.2  Efficiency Versus VIN at 100% Load
    3. 5.3  Power Loss Versus Load, 10% to 100% Load
    4. 5.4  Load Regulation, 10% to 100% Load
    5. 5.5  Light Load Regulation, 0-mA to 200-mA Load
    6. 5.6  Line Regulation, Various Loads
    7. 5.7  Startup Waveforms
    8. 5.8  Shutdown Waveforms
    9. 5.9  Output Voltage Ripple
    10. 5.10 Steady State Switching Waveforms
    11. 5.11 Transient Load Waveforms
    12. 5.12 Over Current and Short Circuit Protections
    13. 5.13 Stability Measurements
    14. 5.14 Thermal Measurements
  7. 6Assembly and Printed Circuit Board (PCB)
  8. 7Bill of Materials (BOM)
  9. 8Revision History

4.3 EVM Test Points

Table 4-1 describes the various EVM test points, allowing easy access for connecting oscilloscope probes, DVM test leads and wire connections to lab test equipment.

Table 4-1 Input, Output, Test Point (I/O/TP) Description

PIN

I/O/TP

COLOR

DESCRIPTION

MIN

TYP

MAX

J1

-

Green

GND

-

0 V

-

J2

I

Green

VIN+

40 V

800 V

1000 V

J3

-

Green

ISO_GND

-

0 V

-

J4

O

Green

VOUT+ (depends on load)

14.5 V

15.5 V

20 V

VDD

TP

White

Analog controller bias supply

-

18.6 V

-

VREF

TP

White

Controller reference output

4.9 V

5 V

5.1 V

COMP

TP

White

Error amplifier output

0 V

-

5 V

VFB

TP

White

Inverting input to the error amplifier

2.45 V

2.5 V

2.55 V

RT/CT

TP

White

Fixed frequency triangle oscillator

0.9 VTYP

1.4 VPP

2.3 VPP

VIN

TP

Red

Input voltage

40 V

-

1000 V

V_AUXL

TP

White

AUX voltage after a 10 ohm series resistor

-

18.7 V

-

V_AUX

TP

White

AUX output voltage

-

18.7 V

-

VG

TP

White

Voltage at the gate of the SiC MOSFET

0 V

18 V

-

SWN

TP

Silver

Switching node (bottom of the PCB)

0 V

-

VIN + 480 V

VO

TP

Yellow

Output voltage

14.5 V

15.5 V

20 V

GND x5

TP

Black

GND

-

0 V

-

ISO_GND x2

TP

Black

Isolated GND

-

0 V

-