SLUUBZ3C May 2020 – October 2022 LMG2610 , UCC28782
- 1 Using the UCC28782EVM-030 65-W USB-C PD High-Density Active-Clamp Flyback Converter
- 2 General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
- 3 Description
- 4 Electrical Performance Specifications
- 5 Schematic Diagram
- 6 Description
- 7 Test Setup
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8 Performance Data and Typical Characteristic Curves
- 8.1 Efficiency Result of 4-Point Average on 20-Vout
- 8.2 Efficiency Result of 4-Point Average at 15-Vout
- 8.3 Efficiency Result of 4-Point Average at 9-Vout
- 8.4 Efficiency Result of 4-Point Average at 5-Vout
- 8.5 Efficiency Typical Results
- 8.6 Output Characteristics
- 8.7 Switching Frequency
- 8.8 Key Switching Waveforms and Operation Mode Load Current
- 8.9 Start Up
- 8.10 Output Voltage Adjustment by USB-C PD
- 8.11 Line Transient Response
- 8.12 Output Ripple Voltage
- 8.13 Boost Function for VDD Bias
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- 8.14 X-Capacitor Discharge
- 8.15 USB-C PD Over Current Limit
- 8.16 Load Transient Response
- 8.17 EN55022 Class B Conducted EMI Test Result
- 8.18 Thermal Images at Full Load (20V and 3.25 A)
- 9 Transformer Details
- 10EVM Assembly and Layout
- 11List of Materials
- 12Revision History
8.12 Output Ripple Voltage
Blue = Output Voltage Ripple, Oscilloscope Channel Bandwidth = 20 MHz, Voltage span between two dashed lines is 150 mV. The ripples are with the 50% load condition unless specified in the associated figures.
Figure 8-23 Typical Ripple Voltage of VOUT = 20 V
Figure 8-24 Typical Ripple Voltage of VOUT = 15 V
Figure 8-25 Typical Ripple Voltage of
VOUT = 9 V
Figure 8-26 Typical Ripple Voltage of
VOUT = 5 V
Figure 8-27 Typical Ripple Voltage of
VOUT = 5 V at No Load
Figure 8-28 Typical Ripple Voltage of
VOUT = 5 V at Full Load