UCC28730 Primary Side Flyback Controller with UCC24650 Secondary Side Wake Up

(ACTIVE) UCC28730EVM-552

Description & Features

Technical Documents

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Description

The UCC28730EVM-552 evaluation module is a 10-W off-line discontinuous mode (DCM) flyback converter that provides constant-voltage (CV) and constant-current (CC) output regulation without the use of an optical coupler.  The primary side controller detects a wake-up signal from the secondary side voltage droop monitor UCC24650 for improved transient response to large load steps.  The EVM demonstrates how the UCC28730 can provide ultra-low standby power without sacrificing start-up time or output transient response with an internal 700-V start-up switch, dynamically controlled operating states, and a tailored modulation profile.

Features
  • Less than 5mW of no-load power
  • Primary side regulation eliminates opto-coupler
  • Wake-up detection helps minimize no-load switching frequency and output capacitance
  • +/-5% voltage and current regulation across line and load
  • Resonant ring valley switching operation for highest overall efficiency


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Part Number Buy from Texas Instruments or Third Party Order Options Status Ext Power Supply  

UCC28730EVM-552:
UCC28730 Primary Side Flyback Controller with UCC24650 Secondary Side Wake Up

$99.00(USD)




Pricing may vary.



ACTIVE No 
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TI's Standard Terms and Conditions for Evaluation Modules apply.

Technical Documents
User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 1338 06 Feb 2015 463

TI Devices (3)

Part Number Name Product Family
UCC24650  200-V Wake-up Monitor for Fast Transient Primary-side Regulation   Offline and Isolated DC/DC Controllers and Converters 
UCC28730  Zero Standby PSR Flyback Controller with CVCC and Wake-Up Monitoring  Offline and Isolated DC/DC Controllers and Converters 
UCC28730-Q1  Zero-Power Standby PSR Flyback Controller for Automotive  Offline and Isolated DC/DC Controllers and Converters 

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