Texas Instruments UCC28950EVM-442 Evaluation Module
Texas Instruments UCC28950EVM-442 Evaluation Module is designed to demonstrate how the UCC28950 control device could be used in high-efficiency applications by achieving ZVS from 50% to 100% load. To achieve this high efficiency, the TI UCC28950 was designed to drive synchronous rectifiers on the secondary side of the full bridge converter. The UCC28950 also incorporates a burst mode and DCM function to improve no-load efficiency.
The DCM (Discontinues Current Mode) comparator was designed to turn off the synchronous rectifiers before the output current reaches critical conduction at lighter loads (<20%). The TI UCC28950EVM-442 is a 600W phase-shifted full-bridge converter that converts a 370V to 410VDC input to a regulated 12V output. This converter was designed to maintain ZVS down to 50% load. This TI evaluation module is ideal for server and telecom power supplies, industrial power systems, and high-density power architectures.
Features
- ZVS from 50% to 100% load
- Higher efficiency for 80+ applications
- Burst Mode/DCM function to reduce no-load power dissipation to meet green-mode requirements
Applications
- Server, telecom power supplies
- Industrial power systems
- High-density power architectures
Published: 2010-10-05
| Updated: 2022-03-11