UCC28782 active clamp flyback converter 65-W USB-C PD EVM with ISO7710FD
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UCC28782EVM-030 demonstrates high-efficiency and high-density for a 65-W USB Type-C™ power delivery (PD) off-line adapter using the UCC28782 active-clamp flyback controller.  The input supports a universal 90 Vac to 264 Vac and the single output can be set to 5 V, 9 V and 15 V all at 3-A max and 20-V at 3.25-A max, which can be adjusted with the USB PD interface controller.  High frequency operation with 250 kHz nominal enables small solution size while the multi-mode operation maintains high efficiency.  GaN MOSFETs are used and driven with UCC28782 products and the ISO7710FD part.  Synchronous rectification is used on the output to increase efficiency.

  • Universal AC input of 90 to 264 Vac with USB Type-C™ PD 3.0 compliant output up to 65 W (5 V/3 A, 9 V/3 A, 15 V /3 A, 20 V/3.25 A)
  • Efficiency and standby power consumption exceeds regulatory requirements CoC Tier 2 and DoE Level VI
  • Power density of 30 W/in3 with an efficiency of 93% at 90-VAC full load
  • Frequency dithering, x-capacitor discharge simplifies compliance with EMI requirements EN 55022
  • Uses GaN MOSFETs to increase efficiency

What's Included

  • General Texas Instruments High Voltage Evaluation (TI_HV_EVM)

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UCC28782 active clamp flyback converter 65-W USB-C PD EVM with ISO7710FD



TI's Standard Terms and Conditions for Evaluation Items apply.

Technical documentation
Datasheet (1)
Title Type Size (KB) Date
PDF 7316 06 Aug 2020
User guides (1)
Title Type Size (KB) Date
PDF 10243 20 Aug 2020
More literature (1)
Title Type Size (KB) Date
PDF 102 29 Jun 2020

TI Devices (2)

Part Number Name Product Family
ISO7710  Robust EMC, single-channel, reinforced digital isolator  Isolation 
UCC28782  High density active clamp flyback controller, EMI dithering, x-cap discharge, bias power management  Offline & isolated DC/DC controllers & converters 

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