UCC28782EVM-030

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

UCC28782EVM-030

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Overview

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.

Features
  • 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

  • General Texas Instruments High Voltage Evaluation (TI_HV_EVM)

Flyback controllers
UCC28782 High density active clamp flyback controller, EMI dithering, x-cap discharge, bias power management

 

Digital isolators
ISO7710 Robust EMC, single-channel, reinforced digital isolator

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Evaluation board

UCC28782EVM-030 – 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

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Type Title Date
* User guide Using the UCC28782EVM-030 (Rev. B) Aug. 20, 2020
Data sheet UCC28782 High Density Active Clamp Flyback Controller with EMI Dithering, X-Cap datasheet (Rev. C) Aug. 06, 2020
More literature UCC28782EVM-030 EU Declaration of Conformity (DoC) (Rev. A) Jun. 29, 2020

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