SLUUCV2A October   2023  – November 2023

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specifications
    4. 1.4 Device Information
    5.     General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  7. 2Hardware
    1. 2.1 Test Setup
      1. 2.1.1 Test Equipment
      2. 2.1.2 Recommended Test Setup
    2. 2.2 Using the EVM with UCC256602
    3. 2.3 Using the EVM with UCC256603
    4. 2.4 Test Points
    5. 2.5 Terminals
    6. 2.6 Test Procedure
      1. 2.6.1 Equipment Shutdown
  8. 3Implementation Results
    1. 3.1 Performance Data and Typical Characteristic Curves
      1. 3.1.1  UCC25660EVM-064 Standalone Standby and Light Load Power
      2. 3.1.2  Efficiency, Load Regulation, Switching Frequency vs Output Current
      3. 3.1.3  Startup
      4. 3.1.4  Enhanced ZCS Avoidance During Soft Start
      5. 3.1.5  Thermal Image
      6. 3.1.6  Output Voltage Ripple
      7. 3.1.7  Load Transient Response
      8. 3.1.8  Loop Response
      9. 3.1.9  Steady State
      10. 3.1.10 X-Capacitor Discharge
  9. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials
  10. 5Additional Information
    1.     Trademarks
  11. 6Revision History

3.1.2 Efficiency, Load Regulation, Switching Frequency vs Output Current

Table 4-2 gives the efficiency, load regulation, switching frequency data at various input voltage and at different load currents.

Table 3-2 Performance Data
VIN (V) IIN (mA) PIN (W) VOUT(V) IOUT(A) Operating Frequency (kHz) Operating Frequency Efficiency (%)
390 501.7 195.663 11.997 15 100.5 Normal 91.97191
390 433.2 168.948 11.998 13 101.4 Normal 92.32071
390 374.4 146.016 11.998 11.25 102.2 Normal 92.44021
390 366.2 142.818 11.998 11 102.36 Normal 92.40992
390 299.5 116.805 11.998 9 103.45 Normal 92.44639
390 249.9 97.461 11.998 7.5 103.9 Normal 92.32924
390 233.2 90.948 11.998 7 104.5 Normal 92.34508
390 167.61 65.3679 11.997 5 105.9 Normal 91.76522
390 126.72 49.4208 11.997 3.75 106.9 Normal 91.03201
365 537 196.005 11.995 15 88.4 Normal 91.79613
365 464.2 169.433 11.997 13 89.07 Normal 92.04877
365 401.2 146.438 11.998 11.25 89.67 Normal 92.17382
365 392 143.08 11.998 11 89.78 Normal 92.2407
365 321 117.165 11.998 9 90.48 Normal 92.16234
365 267.9 97.7835 11.998 7.5 90.99 Normal 92.02473
365 250.2 91.323 11.998 7 91.21 Normal 91.96588
365 179.6 65.554 11.998 5 92.02 Normal 91.51234
365 136.23 49.72395 11.997 3.75 92.67 Normal 90.47702
410 476.6 195.406 11.995 15 110.65 Normal 92.07752
410 412.2 169.002 11.997 13 112.27 Normal 92.28352
410 356.3 146.083 11.997 11.25 113.8 Normal 92.39011
410 348.2 142.762 11.998 11 114.14 Normal 92.44617
410 284.9 116.809 11.998 9 116.2 Normal 92.44322
410 237.7 97.457 11.997 7.5 118.14 Normal 92.32533
410 221.9 90.979 11.997 7 118.89 Normal 92.30592
410 159.05 65.2105 11.997 5 122.4 Normal 91.98672
410 120.38 49.3558 11.997 3.75 125.4 Normal 91.1519