SLUUBZ3C May   2020  – October 2022 LMG2610 , UCC28782

 

  1. 1 Using the UCC28782EVM-030 65-W USB-C PD High-Density Active-Clamp Flyback Converter
    1.     Trademarks
  2. 2 General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  3. 3 Description
  4. 4 Electrical Performance Specifications
  5. 5 Schematic Diagram
  6. 6 Description
    1. 6.1 Typical Application
    2. 6.2 Using the EVM on a Load with USB-C PD Communication
    3. 6.3 Using the EVM on a Load without USB-C PD Communication
  7. 7 Test Setup
    1. 7.1 Test Setup Requirements
    2. 7.2 Test Setup Diagram
    3. 7.3 Test Points
  8. 8 Performance Data and Typical Characteristic Curves
    1. 8.1  Efficiency Result of 4-Point Average on 20-Vout
    2. 8.2  Efficiency Result of 4-Point Average at 15-Vout
    3. 8.3  Efficiency Result of 4-Point Average at 9-Vout
    4. 8.4  Efficiency Result of 4-Point Average at 5-Vout
    5. 8.5  Efficiency Typical Results
    6. 8.6  Output Characteristics
    7. 8.7  Switching Frequency
    8. 8.8  Key Switching Waveforms and Operation Mode Load Current
    9. 8.9  Start Up
    10. 8.10 Output Voltage Adjustment by USB-C PD
    11. 8.11 Line Transient Response
    12. 8.12 Output Ripple Voltage
    13. 8.13 Boost Function for VDD Bias
    14.     29
    15. 8.14 X-Capacitor Discharge
    16. 8.15 USB-C PD Over Current Limit
    17. 8.16 Load Transient Response
    18. 8.17 EN55022 Class B Conducted EMI Test Result
    19. 8.18 Thermal Images at Full Load (20V and 3.25 A)
  9. 9 Transformer Details
  10. 10EVM Assembly and Layout
  11. 11List of Materials
  12. 12Revision History

4 Electrical Performance Specifications

Table 4-1 UCC28782EVM-030 Electrical Performance Specifications(2)
PARAMETERTEST CONDITIONSMINNOMMAXUNIT
INPUT CHARACTERISTICS
VINInput line voltage (RMS)90115 / 230264V
fLINEInput line frequency4750 / 6063Hz
PSTBYInput power at no-loadVIN = 115/230 VRMS, IOUT = 0 A

48/58

mW
P0.25WInput power at 0.25W loadVIN = 115/230 VRMS, POUT = 250 mW

345/385

mW
OUTPUT CHARACTERISTICS
VOUTOutput voltage (USB-C PD) VIN = 90 to 264 VRMSIOUT = 0 to 3.25 A19.950V
IOUT = 0 to 3.00 A15.060
9.050
5.050
IOUTFull load rated output current VIN = 90 to 264 VRMSVOUT = 20.0 V3.250A
VOUT = 5.0, 9.0, or 15.0 V3.000
VOUT_ppOutput ripple voltage VIN = 115 V / 230 VRMSVOUT = 20.0 V, IOUT = 0 to 3.25 A150mVpp
VOUT = 15.0 V, IOUT = 0 to 3.00 A150
VOUT = 9.0 V, IOUT = 0 to 3.00 A150
VOUT = 5.0 V, IOUT = 0 to 3.00 A150
VOUT_ΔOutput voltage deviation due to load step Up / Down (IOUT step change between 0 and 100% load at 100 Hz rate)VOUT = 20.0 V-604 / 340mVpp
VOUT = 15.0 V-584 / 360
VOUT = 9.0 V-404 / 304
VOUT = 5.0 V-404 / 304
POUT_oppOver-power protection thresholdVIN = 90 to 264 VRMS70W
SYSTEMS CHARACTERISTICS
ηFull-load efficiency (VIN= 115/230VRMS)VOUT = 20 V, IOUT = 3.25A94.6 / 94.4%
VOUT = 15 V, IOUT = 3.00A94.8 / 94.6
VOUT = 9 V, IOUT = 3.00A94.2 / 93.8
VOUT = 5 V, IOUT = 3.00A92.9/ 88.1
η4-point average efficiency(1) VIN= 115/230 VRMSVOUT = 20 V (CoC Tier 2, 89.0%)94.2 / 93.1%
VOUT = 15 V (CoC Tier 2, 88.9%)93.9 / 91.8
VOUT = 9 V (CoC Tier 2, 87.3%)92.0 / 89.3
VOUT = 5 V (CoC Tier 2, 81.8%)89.3 / 83.6
ηEfficiency at 10% Load

VIN= 115/230 VRMS

VOUT = 20 V (CoC Tier 2, 79.0%)90.8 / 85.0%
VOUT = 15 V (CoC Tier 2, 78.9%)89.3 / 84.1
VOUT = 9 V (CoC Tier 2, 77.3%)88.3 / 82.2
VOUT = 5 V (CoC Tier 2, 72.5%)87.4 /81.0
TAMBAmbient operating temperature rangeVIN = 90 to 264 VRMS, IOUT = 0 to 3.00A (5V/9V/15V), or 3.25A (20V)25°C
(1) Average efficiency of four load points, IOUT = 100%, 75%, 50% and 25% of rated full-load current for each respective output voltage.
(2) The performance listed in this table is achieved using secondary resonance and based on the test results from a single board.