UCC28740EVM-525

UCC28740EVM-525 Evaluation Module

UCC28740EVM-525

Order now

Overview

The UCC28740EVM-525 evaluation module is a 10W off-line discontinuous mode (DCM) flyback converter that provides constant-voltage (CV) and constant-current (CC) output regulation. It uses optical coupler feedback for tight voltage regulation and improved the transient response to large load steps and primary side control for accurate constant current regulation. The UCC28740 controller uses frequency modulation, peak primary current modulation, valley switching and valley skipping in its control algorithm in order to maximize efficiency over the entire operating range.

Features
  • Universal AC input, 5V/2.1A output
  • <20mW no load power
  • Avg. efficiency > 80%
  • Opto-Coupled Feedback for Constant Voltage Regulation and Fast Dynamic Response
  • Primary Side Control for Tight Constant Current Performance (± 5% Output Current Regulation)
  • Internal 700V Start-Up Switch to Start up the Supply Directly From the Bulk Rail
  • Quasi-resonant valley switching operation for highest overall efficiency
  • Protection Functions: Over Voltage, Low Line, Over Current and Short circuit
AC/DC & DC/DC controllers (external FET)
LM5023 AC-DC quasi-Resonant current mode PWM controller UCC28710 Constant-voltage, constant-current PWM with PSR, valley switching & Programmable cable compensation UCC28711 Constant-voltage, constant-current PWM with PSR, valley switching, NTC option, and 0-mV cable comp. UCC28740 Constant-Voltage, Constant-Current (CVCC) Flyback controller with Secondary Side Regulation (SSR) UCC28740-Q1 Automotive ultra low standby, flyback controller with integrated HV startup and optocoupler feedback
Download View video with transcript Video

Order & start development

Evaluation board

UCC28740EVM-525 — UCC28740EVM-525 Evaluation Module

Log in to order
In stock / Out of stock
Limit:
Not available on TI.com
TI's Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

No results found. Please clear your search and try again.
View all 2
Type Title Date
Certificate UCC28740EVM-525 EU Declaration of Conformity (DoC) 02 Jan 2019
EVM User's guide Using the UCC28740EVM-525 02 Jul 2013

Related design resources

Hardware development

EVALUATION BOARD
LM5023-2NBEVM LM5023 19V 65W Notebook Adapter Evaluation Module UCC28711EVM-160 UCC28711 evaluation module

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​

Videos