TIDA-01501 Reference Design

Texas Instruments

94% Peak Efficiency: Super Transient: 450W AC/DC Reference Design with Single-layer PCB

Description

This reference design is a 450W high-efficiency and super transient AC/DC converter for desktop PC PSUs: gaming PC PSUs: entry-level server PSUs: and other low-cost AC/DC PSUs. The circuit consists of a front-end continuous conduction mode (CCM) power factor correction (PFC) circuit: followed by an LLC-based second stage. The design uses the UCC28180 controller for the PFC stage and UCC256301 controller for the LLC stage to achieve a compact and robust control structure. Synchronous rectification based on the UCC24612 and low RDS(on) FETs aids in achieving higher efficiencies. This reference design can be used as an AC/DC supply in many applications demanding efficient and super transient power conversion.

Features
  • Peak efficiency 93% @ 230VAC for whole stageFull power delivery across wide AC input range:  85 - 265VACLeading transient performance (half duty-cycle response for line transient and dynamic load)Single layer PCB design to achieve low solution costRobust protection built in
Applications
  • Enterprise and Cinema Projectors
  • Fitness Machines
  • Mobile Wall Charger Design
  • Instrumentation: Lab
  • Analytical
  • Field
  • Portable
  • Power Analyzers and Meters (AC / DC)
  • Lab Power Supply DC
  • Source AC
  • Electronic Load
  • Memory and Semiconductor Test Equipment
  • Single Phase Online UPS
  • Medical PSU
  • LCD Test Equipment
  • Battery Test Equipment
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