5V/10W Off-Line DCM Flyback Converter Optimized for Zero-Power at No-Load - Reference Design PMP9561 (ACTIVE)

Description & Features

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Description

This design features the UCC28730 flyback controller in conjunction with the UCC24650 wake-up monitor to provide CV, CC regulated output with ultra-low stand-by power that exceeds Level VI and CoC Tier 2 specifications for average efficiency and 10% load efficiency.  Wake-up signal detection provides fast transient response to large load steps.

Features
  • No-Load Stand-By Power Consumption less than 5 mW
  • Wake-Up Detection for Fast Dynamic Response
  • Primary Side Regulation Eliminates Opto-Coupler
  • Average Efficiency > 83%; exceeds Level VI and CoC Tier 2 specifications, effective 2016
  • 10% efficiency > 80%
  • Resonant Ring Valley Switching Operation for Highest Overall Efficiency

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Schematic/Block Diagram

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Design Files

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Parametrics
 PMP9561.1
(Output Voltage 1)
Vin (Min) (V)85
Vin (Max) (V)265
Vout (Nom) (V)5
Iout (Max) (A)2
Output Power (W)10
Isolated/Non-IsolatedIsolated
Input TypeAC
TopologyFlyback- Quasi Resonant

TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD18534Q5A  60V, N ch NexFET MOSFET™, single SON5x6, 9.8mOhm  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
UCC24610  Secondary Side Synchronous Rectifier Controller  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
UCC24650  200-V Wake-up Monitor for Fast Transient Primary-side Regulation  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
UCC28730  Zero Standby PSR Flyback Controller with CVCC and Wake-Up Monitoring  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD18534Q5A VSONP (DQJ)| 8 Download
UCC24610 Download Download
Download Download
UCC24650 Download Download
UCC28730 Download Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 1047 16 Feb 2015
Design files (5)
Title Type Size (KB) Date
ZIP 256 16 Feb 2015
PDF 747 16 Feb 2015
PDF 204 16 Feb 2015
PDF 79 16 Feb 2015
PDF 71 16 Feb 2015

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