UCC28740EVM-525 Evaluation Module

(ACTIVE) UCC28740EVM-525

Description & Features

Technical Documents

Support & Training

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Description

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


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Part Number Buy from Texas Instruments or Third Party Buy from Authorized Distributor Status

UCC28740EVM-525:
UCC28740EVM-525 Evaluations Module

$49.00(USD)


Pricing may vary.



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Technical Documents
Application notes (1)
Title Abstract Type Size (KB) Date Views
PDF 231 09 Oct 2015 0
User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 1432 02 Jul 2013 0

Design Kits & Evaluation Modules  ( 2 )

Name Part Number Tool Type
LM5023 19V 65W Notebook Adapter Evaluation Module  LM5023-2NBEVM  Evaluation Modules & Boards 
UCC28711 Evaluation Module  UCC28711EVM-160  Evaluation Modules & Boards 

TI Devices (4)

Part Number Name Product Family
LM5023  AC-DC Quasi-Resonant Current Mode PWM Controller  Offline & isolated DC/DC controllers & converters 
UCC28710  Constant-Voltage, Constant-Current PWM Controller with Primary-Side Regulation  Offline & isolated DC/DC controllers & converters 
UCC28711  Constant-Voltage, Constant-Current PWM Controller with Primary-Side Regulation  Offline & isolated DC/DC controllers & converters 
UCC28740  Constant-Voltage, Constant-Current Flyback Controller Using Opto-Coupler Feedback  Offline & isolated DC/DC controllers & converters 

Support & training

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