UCC28704EVM-724

UCC28704 5V/10W Off-Line Power Supply With PSR for USB Wall Adapters Evaluation Module

UCC28704EVM-724

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Overview

The UCC28704EVM-724 is a 10-W off-line isolated power supply providing 5-V output on a USB-A port. The converter output voltage and current are regulated to 5% accuracy without using an optocoupler or secondary-side feedback circuits. The EVM demonstrates a low-cost solution to comply with global external power-supply efficiency standards (Department of Energy Level VI, EU Code of Conduct V5 Tier-2, etc.) without adding a secondary-side synchronous rectifier.

Features
  • Universal AC input range (85-V to 265-V AC), 5-V/2-A isolated output
  • 5% output voltage (CV) and current (CC) accuracy with primary-side regulation (PSR)
  • 83% average efficiency and <60-mW standby power performance exceeds DoE Level VI and EU CoC V5 Tier-2 EPS standards
  • 80-mV p-p output voltage ripple at end of 0.15-Ω cable
  • Fault protections: output overvoltage, overcurrent, and load short circuit
Flyback controllers
UCC28704 High-Efficiency Off-Line CV and CC Flyback Controller with Primary-Side Regulation (PSR)
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Evaluation board

UCC28704EVM-724 – UCC28704 5V/10W Off-Line Power Supply With PSR for USB Wall Adapters Evaluation Module

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

Design files

UCC28704EVM-724 Altium SLURAY4.ZIP (9016 KB) UCC28704EVM-724 Gerber SLUC633.ZIP (549 KB)

Technical documentation

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Type Title Date
* User guide Using the UCC28704EVM-724 10-W USB Adapter Jan. 26, 2016
More literature UCC28704EVM-724 EU Declaration of Conformity (DoC) Jan. 02, 2019
Technical articles USB Type-C: charging a new world Oct. 04, 2016
Datasheet UCC28704 High-Efficiency Off-Line CV and CC Flyback Controller with Primary-Side Regulation (PSR) datasheet (Rev. A) Feb. 17, 2016

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